Automatically update version to 0.7.1

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 5.1.6 to 5.2.3.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/main/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/create-vite@5.2.3/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/dependabot.yml

@@ -12,6 +12,12 @@ updates:
       interval: "weekly"
       day: "saturday"
       time: "09:00"
+  - package-ecosystem: "pip"
+    directory: "/example"
+    schedule:
+      interval: "weekly"
+      day: "saturday"
+      time: "09:00"
   - package-ecosystem: "github-actions"
     directory: "/.github/workflows/"
     schedule:

.github/workflows/autoupdate.yml

@@ -0,0 +1,35 @@
+on: "pull_request_target"
+
+permissions:
+  pull-requests: "write"
+  contents: "write"
+
+jobs:
+  dependabot:
+    runs-on: "ubuntu-latest"
+    # Checking the actor will prevent your Action run failing on non-Dependabot
+    # PRs but also ensures that it only does work for Dependabot PRs.
+    if: "${{ github.actor == 'dependabot[bot]' }}"
+    steps:
+      # This first step will fail if there's no metadata and so the approval
+      # will not occur.
+      - name: "Dependabot metadata"
+        id: "dependabot-metadata"
+        uses: "dependabot/fetch-metadata@v2"
+        with:
+          github-token: "${{ secrets.GITHUB_TOKEN }}"
+      # Here the PR gets approved.
+      - uses: "actions/checkout@v4"
+      - name: "Approve a PR"
+        run: "gh pr review --approve $PR_URL"
+        env:
+          PR_URL: "${{ github.event.pull_request.html_url }}"
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+      # Finally, this sets the PR to allow auto-merging for patch and minor
+      # updates if all checks pass
+      - name: "Enable auto-merge for Dependabot PRs"
+        #if: "${{ steps.dependabot-metadata.outputs.update-type != 'version-update:semver-major' }}"
+        run: "gh pr merge --auto --squash $PR_URL"
+        env:
+          PR_URL: "${{ github.event.pull_request.html_url }}"
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/build.yml

@@ -1,5 +1,3 @@
-name: "Continuous Integration"
-
 on:
   push:
     branches:
@@ -7,6 +5,12 @@ on:
   pull_request:
     branches:
       - "master"
+  workflow_call:
+    inputs:
+      ref:
+        type: "string"
+        required: true
+        description: "The ref (branch or tag) to build"
 
 jobs:
 
@@ -15,6 +19,8 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       - uses: "actions/checkout@v4"
+        with:
+          ref: "${{ inputs.ref }}"
       - uses: "actions/setup-node@v4"
         with:
           cache: "yarn"
@@ -23,7 +29,7 @@ jobs:
       - uses: "actions/upload-artifact@v4"
         with:
           name: "frontend"
-          path: "./dist"
+          path: "dist"
           retention-days: 5
 
   build-backend:
@@ -31,35 +37,52 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       - uses: "actions/checkout@v4"
-      - uses: "actions/setup-node@v4"
         with:
-          cache: "yarn"
+          ref: "${{ inputs.ref }}"
       - run: "pipx install poetry"
       - uses: "actions/setup-python@v5"
         with:
           python-version: "3.11"
           cache: "poetry"
-      - run: "poetry install"
-      - run: "poetry build"
+      - run: "SKIP_BUILD_FRONTEND=true poetry install"
+      - run: "SKIP_BUILD_FRONTEND=true poetry build"
 
   build-logo:
     name: "Build logo"
     runs-on: "ubuntu-latest"
     steps:
       - uses: "actions/checkout@v4"
-      - uses: "actions/setup-node@v4"
         with:
-          cache: "yarn"
+          ref: "${{ inputs.ref }}"
       - run: "pipx install poetry"
       - uses: "actions/setup-python@v5"
         with:
           python-version: "3.11"
           cache: "poetry"
-      - run: "poetry install"
+      - run: "SKIP_BUILD_FRONTEND=true poetry install"
       - run: "poetry run python yacv_server/logo.py"
-      - run: "cp assets/fox.glb assets/logo_build/fox.glb"
       - uses: "actions/upload-artifact@v4"
         with:
           name: "logo"
-          path: "./assets/logo_build"
+          path: "assets/logo_build"
+          retention-days: 5
+
+  build-example:
+    name: "Build example"
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: "actions/checkout@v4"
+        with:
+          ref: "${{ inputs.ref }}"
+      - run: "pipx install poetry"
+      - uses: "actions/setup-python@v5"
+        with:
+          python-version: "3.11"
+          cache: "poetry"
+      - run: "SKIP_BUILD_FRONTEND=true poetry install"
+      - run: "YACV_DISABLE_SERVER=true poetry run python example/object.py"
+      - uses: "actions/upload-artifact@v4"
+        with:
+          name: "example"
+          path: "export"
           retention-days: 5

.github/workflows/deploy.yml

@@ -1,38 +0,0 @@
-name: "Deploy"
-
-on:
-  push:
-    tags:
-      - "v*"
-
-permissions:
-  contents: "write"
-
-jobs:
-  deploy:
-    concurrency: "ci-${{ github.ref }}" # Recommended if you intend to make multiple deployments in quick succession.
-    runs-on: "ubuntu-latest"
-    steps:
-      - uses: "actions/download-workflow-artifact@v3"
-        with:
-          workflow: "ci.yml"
-          name: "frontend"
-          path: "./public"
-      - uses: "actions/download-workflow-artifact@v3"
-        with:
-          workflow: "ci.yml"
-          name: "logo"
-          path: "./public"
-      - run: "ls -l -R ./public"
-      - uses: "JamesIves/github-pages-deploy-action@v4"
-        with:
-          folder: "public"
-      - uses: "svenstaro/upload-release-action@v2"
-        with:
-          repo_token: "${{ secrets.GITHUB_TOKEN }}"
-          file: "./public/*"
-          asset_name: "frontend"
-          tag: "${{ github.ref }}"
-          overwrite: true
-          file_glob: true
-

.github/workflows/deploy1.yml

@@ -0,0 +1,59 @@
+on:
+  push:
+    tags:
+      - "v**"
+
+permissions: # Same as deploy2.yml
+  contents: "write"
+  pages: "write"
+  id-token: "write"
+
+jobs:
+
+  update-versions:
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: "actions/checkout@v4"
+        with: # Ensure we are not in a detached HEAD state
+          ref: "master"
+      # Check that the tag commit is the latest master commit
+      - run: |
+          git fetch --tags
+          tag_commit=$(git rev-parse ${{ github.ref }})
+          master_commit=$(git rev-parse master)
+          if [ "$tag_commit" != "$master_commit" ]; then
+              echo "The tag commit ($tag_commit) is not the latest master commit ($master_commit)"
+              exit 1
+          fi
+      - run: "echo 'CLEAN_VERSION=${{ github.ref }}' | sed 's,refs/tags/v,,g' >> $GITHUB_ENV"
+      # Write the new version to package.json
+      - uses: "actions/setup-node@v4"
+      - run: "yarn version --new-version $CLEAN_VERSION --no-git-tag-version"
+      # Write the new version to pyproject.toml
+      - run: "pipx install poetry"
+      - uses: "actions/setup-python@v5"
+        with:
+          python-version: "3.11"
+          cache: "poetry"
+      - run: "poetry version $CLEAN_VERSION"
+      # Commit the changes and move the tag!
+      - run: |
+          git config --global user.email "yeicor@users.noreply.github.com"
+          git config --global user.name "Yeicor"
+          if git commit -am "Automatically update version to $CLEAN_VERSION"; then
+            git push
+            # Move the tag to the new commit
+            git tag -f -a "v$CLEAN_VERSION" -m "v$CLEAN_VERSION"
+            git push -f --tags # Force push the tag to GitHub
+            # The tag move will NOT trigger a new workflow
+          else
+            echo "No source change detected on version update (did you repeat a release tag??)"
+            exit 1
+          fi
+
+  deploy: # Makes sure all artifacts are updated and use the new version for the next deployment steps
+    needs: "update-versions"
+    uses: "./.github/workflows/deploy2.yml"
+    secrets: "inherit" # Inherit the secrets from the parent workflow
+    with:
+      ref: "master"  # Ensure we are cloning the latest version of the repository

.github/workflows/deploy2.yml

@@ -0,0 +1,75 @@
+on:
+  workflow_call:
+    inputs:
+      ref:
+        type: "string"
+        required: true
+        description: "The ref (branch or tag) to build"
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: "write"
+  pages: "write"
+  id-token: "write"
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+
+  rebuild: # Makes sure all artifacts are updated and use the new version
+    uses: "./.github/workflows/build.yml"
+    with:
+      ref: "${{ inputs.ref }}"
+
+  deploy-frontend:
+    needs: "rebuild"
+    runs-on: "ubuntu-latest"
+    environment:
+      name: "github-pages"
+      url: "${{ steps.deployment.outputs.page_url }}"
+    steps:
+      - uses: "actions/download-artifact@v4"
+        with: # Downloads all artifacts from the build job
+          path: "./public"
+      - run: |  # Merge the subdirectories of public into a single directory
+          for dir in public/*; do
+            mv "$dir/"* public/
+            rmdir "$dir"
+          done
+      - uses: "actions/configure-pages@v4"
+      - uses: "actions/upload-pages-artifact@v3"
+        with:
+          path: 'public'
+      - id: "deployment"
+        uses: "actions/deploy-pages@v4"
+      - run: 'zip -r frontend.zip public'
+      - uses: "svenstaro/upload-release-action@v2"
+        with:
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
+          file: "frontend.zip"
+          tag: "${{ github.ref }}"
+          overwrite: true
+
+  deploy-backend:
+    needs: "rebuild"
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: "actions/checkout@v4"
+        with:
+          ref: "${{ inputs.ref }}"
+      - uses: "actions/setup-node@v4"
+        with:
+          cache: "yarn"
+      - run: "pipx install poetry"
+      - uses: "actions/setup-python@v5"
+        with:
+          python-version: "3.11"
+          cache: "poetry"
+      - run: "poetry install"
+      - run: "poetry config pypi-token.pypi ${{ secrets.PYPI_TOKEN }}"
+      - run: "poetry publish --build"
+

README.md

@@ -10,35 +10,19 @@ in a web browser.
 - All [GLTF 2.0](https://www.khronos.org/gltf/) features (textures, PBR materials, animations...).
 - All [model-viewer](https://modelviewer.dev/) features (smooth controls, augmented reality...).
 - Load multiple models at once, load external models and even images as quads.
-- View and interact with topological entities: faces, edges, vertices and locations.
 - Control clipping planes and transparency of each model.
+- View and interact with topological entities: faces, edges, vertices and locations.
 - Select any entity and measure bounding box size and distances.
-- Fully-featured [static deployment](#static-deployment): just upload the viewer and models to your server.
-- [Live lazy updates](#live-updates) while editing the CAD model (using the [yacv_server](yacv_server)).
+- Hot reloading while editing the CAD model (using the `yacv-server` package).
+- Fully-featured static deployment: just upload the viewer and models to your server.
 
-## Usage & demo
+## Usage
 
-The latest build is available at https://yeicor-3d.github.io/yet-another-cad-viewer/.
+The [example](example) is a fully working project that shows how to use the viewer.
 
-### Live updates
-
-To see the live updates you will need to run the [yacv_server](yacv_server) and
-open [the viewer](https://yeicor-3d.github.io/yet-another-cad-viewer/) with
-the `preloadModels=ws://<host>:32323/` query parameter (by default it already tries localhost).
-
-Note that [yacv_server](yacv_server) also hosts the frontend at `http://localhost:32323/` if you have no access to the
-internet.
-
-### Static deployment
-
-To deploy the viewer and models as a static website you can simply copy the latest build directory to your server.
-To load models use the `preloadModels=...` query parameter in the URL.
-It can be set multiple times to load multiple models.
-
-Note that you can simply reuse the [main deployment](https://yeicor-3d.github.io/yet-another-cad-viewer/) and host only
-your own models (linking them from the viewer with the `preloadModels` query parameter).
-
-To see a working example of a static deployment you can check out
-the [demo](https://yeicor-3d.github.io/yet-another-cad-viewer/?preloadModels=base.glb&preloadModels=fox.glb&preloadModels=img.jpg.glb&preloadModels=location.glb).
+You can play with the latest
+demo [here](https://yeicor-3d.github.io/yet-another-cad-viewer/?preload=logo.glb&preload=fox.glb&preload=img.jpg.glb&preload=location.glb)
+(or
+[without animation](https://yeicor-3d.github.io/yet-another-cad-viewer/?autoplay=false&preload=logo.glb&preload=fox.glb&preload=img.jpg.glb&preload=location.glb)).
 
 ![Demo](assets/screenshot.png)

assets/.gitignore

@@ -0,0 +1 @@
+/logo_build/

assets/licenses.txt

@@ -211,11 +211,12 @@ Apache License
 
 -----------
 
-The following npm package may be included in this product:
+The following npm packages may be included in this product:
 
  - source-map-js@1.0.2
+ - source-map-js@1.2.0
 
-This package contains the following license and notice below:
+These packages each contain the following license and notice below:
 
 Copyright (c) 2009-2011, Mozilla Foundation and contributors
 All rights reserved.
@@ -523,8 +524,8 @@ Apache License
 The following npm packages may be included in this product:
 
  - b4a@1.6.6
- - bare-events@2.2.0
- - bare-fs@2.1.5
+ - bare-events@2.2.1
+ - bare-fs@2.2.1
  - bare-os@2.2.0
  - bare-path@2.1.0
 
@@ -1290,7 +1291,7 @@ third-party archives.
 
 The following npm package may be included in this product:
 
- - typescript@5.3.3
+ - typescript@5.4.3
 
 This package contains the following license and notice below:
 
@@ -1430,7 +1431,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 The following npm package may be included in this product:
 
- - @lit-labs/ssr-dom-shim@1.1.2
+ - @lit-labs/ssr-dom-shim@1.2.0
 
 This package contains the following license and notice below:
 
@@ -1556,7 +1557,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 The following npm package may be included in this product:
 
- - @babel/parser@7.23.9
+ - @babel/parser@7.24.0
 
 This package contains the following license and notice below:
 
@@ -1736,7 +1737,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 The following npm package may be included in this product:
 
- - node-abi@3.54.0
+ - node-abi@3.56.0
 
 This package contains the following license and notice below:
 
@@ -1764,6 +1765,36 @@ SOFTWARE.
 
 -----------
 
+The following npm package may be included in this product:
+
+ - three-mesh-bvh@0.7.3
+
+This package contains the following license and notice below:
+
+MIT License
+
+Copyright (c) 2018 Garrett Johnson
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+-----------
+
 The following npm package may be included in this product:
 
  - napi-build-utils@1.0.2
@@ -1826,7 +1857,7 @@ SOFTWARE.
 
 The following npm package may be included in this product:
 
- - @monogrid/gainmap-js@3.0.1
+ - @monogrid/gainmap-js@3.0.3
 
 This package contains the following license and notice below:
 
@@ -2194,13 +2225,13 @@ THE SOFTWARE.
 
 The following npm package may be included in this product:
 
- - three@0.160.1
+ - three@0.162.0
 
 This package contains the following license and notice below:
 
 The MIT License
 
-Copyright © 2010-2023 three.js authors
+Copyright © 2010-2024 three.js authors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -2378,7 +2409,7 @@ THE SOFTWARE.
 
 The following npm package may be included in this product:
 
- - prebuild-install@7.1.1
+ - prebuild-install@7.1.2
 
 This package contains the following license and notice below:
 
@@ -2408,7 +2439,7 @@ THE SOFTWARE.
 
 The following npm package may be included in this product:
 
- - vuetify@3.5.3
+ - vuetify@3.5.11
 
 This package contains the following license and notice below:
 
@@ -2498,16 +2529,16 @@ THE SOFTWARE.
 
 The following npm packages may be included in this product:
 
- - @vue/compiler-core@3.4.16
- - @vue/compiler-dom@3.4.16
- - @vue/compiler-sfc@3.4.16
- - @vue/compiler-ssr@3.4.16
- - @vue/reactivity@3.4.16
- - @vue/runtime-core@3.4.16
- - @vue/runtime-dom@3.4.16
- - @vue/server-renderer@3.4.16
- - @vue/shared@3.4.16
- - vue@3.4.16
+ - @vue/compiler-core@3.4.21
+ - @vue/compiler-dom@3.4.21
+ - @vue/compiler-sfc@3.4.21
+ - @vue/compiler-ssr@3.4.21
+ - @vue/reactivity@3.4.21
+ - @vue/runtime-core@3.4.21
+ - @vue/runtime-dom@3.4.21
+ - @vue/server-renderer@3.4.21
+ - @vue/shared@3.4.21
+ - vue@3.4.21
 
 These packages each contain the following license and notice below:
 
@@ -2538,7 +2569,7 @@ THE SOFTWARE.
 The following npm packages may be included in this product:
 
  - fast-fifo@1.3.2
- - streamx@2.16.0
+ - streamx@2.16.1
 
 These packages each contain the following license and notice below:
 
@@ -2690,9 +2721,9 @@ THE SOFTWARE.
 
 The following npm packages may be included in this product:
 
- - @gltf-transform/core@3.10.0
- - @gltf-transform/extensions@3.10.0
- - @gltf-transform/functions@3.10.0
+ - @gltf-transform/core@3.10.1
+ - @gltf-transform/extensions@3.10.1
+ - @gltf-transform/functions@3.10.1
 
 These packages each contain the following license and notice below:
 
@@ -2843,7 +2874,7 @@ THE SOFTWARE.
 
 The following npm package may be included in this product:
 
- - postcss@8.4.35
+ - postcss@8.4.38
 
 This package contains the following license and notice below:
 

build.py

@@ -2,6 +2,8 @@ import os
 import subprocess
 
 if __name__ == "__main__":
-    # When building the backend, make sure the frontend is built first
-    subprocess.run(['yarn', 'install'], check=True)
-    subprocess.run(['yarn', 'build', '--outDir', 'yacv_server/frontend'], check=True)
+    # Building the frontend is optional
+    if os.getenv('SKIP_BUILD_FRONTEND') is None and os.path.exists('package.json'):
+        # When building the backend, make sure the frontend is built first
+        subprocess.run(['yarn', 'install'], check=True)
+        subprocess.run(['yarn', 'build', '--outDir', 'yacv_server/frontend'], check=True)

example/.gitignore

@@ -0,0 +1,2 @@
+/venv/
+/export/

example/README.md

@@ -0,0 +1,41 @@
+# Quickstart of Yet Another CAD Viewer
+
+## Installation
+
+1. Download the contents of this folder.
+2. Assuming you have a recent version of Python installed, install the required packages:
+
+```bash
+python -m venv venv
+pip install -r requirements.txt
+# Do this every time you change the terminal:
+. venv/bin/activate
+```
+
+## Usage
+
+### Development with hot-reloading
+
+To start the viewer, open the [GitHub Pages link](https://yeicor-3d.github.io/yet-another-cad-viewer/) of the frontend.
+It will try to connect to the server at `127.0.0.1:32323` by default (this can be changed with the `preload` query
+parameter).
+
+Running `python object.py` is enough to push the model to the viewer. However, the recommended way for developing with
+minimal latency is to run in cell mode (#%%). This way, the slow imports are only done once, and the server keeps
+running. After editing the file you can just re-run the cell with the `show_object` call to push the changes to
+the viewer.
+
+### Static final deployment
+
+Once your model is complete, you may want to share it with others using the same viewer.
+
+You can do so by exporting the model as a .glb file as a last step of your script.
+This is already done in `object.py` if the environment variable `CI` is set.
+
+Once you have the `object.glb` file, you can host it on any static file server and share the following link with others:
+`https://yeicor-3d.github.io/yet-another-cad-viewer/?preload=<link-to-object.glb>`
+
+For the example model, the build process is set up in [build.yml](../.github/workflows/build.yml), the upload process
+is set up in [deploy.yml](../.github/workflows/deploy.yml), and the final link is:
+https://yeicor-3d.github.io/yet-another-cad-viewer/?preload=example.glb
+

example/object.py

@@ -0,0 +1,26 @@
+# Optional: enable logging to see what's happening
+import logging
+import os
+
+from build123d import *  # Also works with cadquery objects!
+
+logging.basicConfig(level=logging.DEBUG)
+
+from yacv_server import show, export_all  # Check out other exported methods for more features!
+
+# %%
+
+# Create a simple object
+with BuildPart() as example:
+    Box(10, 10, 5)
+    Cylinder(4, 5, mode=Mode.SUBTRACT)
+
+# Show it in the frontend with hot-reloading
+show(example)
+
+
+# %%
+
+# If running on CI, export the objects to .glb files for a static deployment
+if 'CI' in os.environ:
+    export_all('export')

example/requirements.txt

@@ -0,0 +1,2 @@
+build123d
+yacv-server

frontend/App.vue

@@ -32,8 +32,34 @@ const disableTap = ref(false);
 const setDisableTap = (val: boolean) => disableTap.value = val;
 provide('disableTap', {disableTap, setDisableTap});
 
-async function onModelLoadRequest(model: NetworkUpdateEvent) {
-  sceneDocument.value = await SceneMgr.loadModel(sceneUrl, sceneDocument.value, model.name, model.url);
+async function onModelUpdateRequest(event: NetworkUpdateEvent) {
+  // Load/unload a new batch of models to optimize rendering time
+  console.log("Received model update request", event.models);
+  let shutdownRequestIndex = event.models.findIndex((model) => model.isRemove == null);
+  let shutdownRequest = null;
+  if (shutdownRequestIndex !== -1) {
+    console.log("Will shut down the connection after this load, as requested by the server");
+    shutdownRequest = event.models.splice(shutdownRequestIndex, 1)[0];
+  }
+  let doc = sceneDocument.value;
+  for (let modelIndex in event.models) {
+    let isLast = parseInt(modelIndex) === event.models.length - 1;
+    let model = event.models[modelIndex];
+    try {
+      if (!model.isRemove) {
+        doc = await SceneMgr.loadModel(sceneUrl, doc, model.name, model.url, isLast && settings.loadHelpers, isLast);
+      } else {
+        doc = await SceneMgr.removeModel(sceneUrl, doc, model.name, isLast && settings.loadHelpers, isLast);
+      }
+    } catch (e) {
+      console.error("Error loading model", model, e);
+    }
+  }
+  if (shutdownRequest !== null) {
+    console.log("Shutting down the connection as requested by the server");
+    event.disconnect();
+  }
+  sceneDocument.value = doc
   triggerRef(sceneDocument); // Why not triggered automatically?
 }
 
@@ -44,9 +70,9 @@ async function onModelRemoveRequest(name: string) {
 
 // Set up the load model event listener
 let networkMgr = new NetworkManager();
-networkMgr.addEventListener('update', (e) => onModelLoadRequest(e as NetworkUpdateEvent));
+networkMgr.addEventListener('update', (e) => onModelUpdateRequest(e as NetworkUpdateEvent));
 // Start loading all configured models ASAP
-for (let model of settings.preloadModels) {
+for (let model of settings.preload) {
   networkMgr.load(model);
 }
 

frontend/index.ts

@@ -5,6 +5,12 @@ import {createVuetify} from 'vuetify';
 import * as directives from 'vuetify/lib/directives/index.mjs';
 import 'vuetify/dist/vuetify.css';
 
+// @ts-ignore
+if (__APP_NAME__) {
+    // @ts-ignore
+    console.log(`Starting ${__APP_NAME__} v${__APP_VERSION__} (${__APP_GIT_SHA__}${__APP_GIT_DIRTY__ ? "+dirty" : ""})...`);
+}
+
 const vuetify = createVuetify({
     directives,
     theme: {

frontend/misc/Loading.vue

@@ -6,7 +6,8 @@ import {VContainer, VRow, VCol, VProgressCircular} from "vuetify/lib/components/
   <v-container>
     <v-row justify="center" style="height: 100%">
       <v-col align-self="center">
-        <v-progress-circular indeterminate style="display: block; margin: 0 auto;"/>
+        <v-progress-circular indeterminate style="display: block; margin: 0 auto;"></v-progress-circular>
+        <slot/>
       </v-col>
     </v-row>
   </v-container>

frontend/misc/distances.ts

@@ -1,16 +1,17 @@
 import {BufferAttribute, InterleavedBufferAttribute, Vector3} from 'three';
 import type {MObject3D} from "../tools/Selection.vue";
-import type { ModelScene } from '@google/model-viewer/lib/three-components/ModelScene';
+import type {ModelScene} from '@google/model-viewer/lib/three-components/ModelScene';
+import type {SelectionInfo} from "../tools/selection";
 
 
-function getCenterAndVertexList(obj: MObject3D, scene: ModelScene): {
+function getCenterAndVertexList(selInfo: SelectionInfo, scene: ModelScene): {
     center: Vector3,
     vertices: Array<Vector3>
 } {
-    obj.updateMatrixWorld();
-    let pos: BufferAttribute | InterleavedBufferAttribute = obj.geometry.getAttribute('position');
-    let ind: BufferAttribute | null = obj.geometry.index;
-    if (!ind) {
+    selInfo.object.updateMatrixWorld();
+    let pos: BufferAttribute | InterleavedBufferAttribute = selInfo.object.geometry.getAttribute('position');
+    let ind: BufferAttribute | null = selInfo.object.geometry.index;
+    if (ind === null) {
         ind = new BufferAttribute(new Uint16Array(pos.count), 1);
         for (let i = 0; i < pos.count; i++) {
             ind.array[i] = i;
@@ -18,15 +19,14 @@ function getCenterAndVertexList(obj: MObject3D, scene: ModelScene): {
     }
     let center = new Vector3();
     let vertices = [];
-    for (let i = 0; i < ind.count; i++) {
-        let index = ind.array[i];
+    for (let i = selInfo.indices[0]; i < selInfo.indices[1]; i++) {
+        let index = ind.getX(i)
         let vertex = new Vector3(pos.getX(index), pos.getY(index), pos.getZ(index));
-        vertex = scene.target.worldToLocal(obj.localToWorld(vertex));
+        vertex = scene.target.worldToLocal(selInfo.object.localToWorld(vertex));
         center.add(vertex);
         vertices.push(vertex);
     }
-    center = center.divideScalar(ind.count);
-    console.log("center", center)
+    center = center.divideScalar(selInfo.indices[1] - selInfo.indices[0]);
     return {center, vertices};
 }
 
@@ -34,7 +34,7 @@ function getCenterAndVertexList(obj: MObject3D, scene: ModelScene): {
  * Given two THREE.Object3D objects, returns their closest and farthest vertices, and the geometric centers.
  * All of them are approximated and should not be used for precise calculations.
  */
-export function distances(a: MObject3D, b: MObject3D, scene: ModelScene): {
+export function distances(a: SelectionInfo, b: SelectionInfo, scene: ModelScene): {
     min: Array<Vector3>,
     center: Array<Vector3>,
     max: Array<Vector3>
@@ -46,7 +46,6 @@ export function distances(a: MObject3D, b: MObject3D, scene: ModelScene): {
 
     // Find the closest and farthest vertices.
     // TODO: Compute actual min and max distances between the two objects.
-    // FIXME: Working for points and lines, but not triangles...
     // FIXME: Really slow... (use a BVH or something)
     let minDistance = Infinity;
     let minDistanceVertices = [new Vector3(), new Vector3()];

frontend/misc/gltf.ts

@@ -1,4 +1,4 @@
-import {Document, Scene, type Transform, WebIO, Buffer} from "@gltf-transform/core";
+import {Buffer, Document, Scene, type Transform, WebIO} from "@gltf-transform/core";
 import {unpartition} from "@gltf-transform/functions";
 
 let io = new WebIO();
@@ -12,9 +12,16 @@ export let extrasNameValueHelpers = "__helpers";
  *
  * Remember to call mergeFinalize after all models have been merged (slower required operations).
  */
-export async function mergePartial(url: string, name: string, document: Document): Promise<Document> {
+export async function mergePartial(url: string, name: string, document: Document, networkFinished: () => void = () => {
+}): Promise<Document> {
+    // Fetch the complete document from the network
+    // This could be done at the same time as the document is being processed, but I wanted better metrics
+    let response = await fetch(url);
+    let buffer = await response.arrayBuffer();
+    networkFinished();
+
     // Load the new document
-    let newDoc = await io.read(url);
+    let newDoc = await io.readBinary(new Uint8Array(buffer));
 
     // Remove any previous model with the same name
     await document.transform(dropByName(name));

frontend/misc/helpers.ts

@@ -1,3 +1,5 @@
+// noinspection JSVoidFunctionReturnValueUsed,JSUnresolvedReference
+
 import {Document, type TypedArray} from '@gltf-transform/core'
 import {Vector2} from "three/src/math/Vector2.js"
 import {Vector3} from "three/src/math/Vector3.js"
@@ -26,7 +28,7 @@ function buildSimpleGltf(doc: Document, rawPositions: number[], rawIndices: numb
     if (rawColors) {
         colors = doc.createAccessor(name + 'Color')
             .setArray(new Float32Array(rawColors) as TypedArray)
-            .setType('VEC3')
+            .setType('VEC4')
             .setBuffer(buffer);
     }
     const material = doc.createMaterial(name + 'Material')
@@ -39,6 +41,11 @@ function buildSimpleGltf(doc: Document, rawPositions: number[], rawIndices: numb
     if (rawColors) {
         geometry.setAttribute('COLOR_0', colors)
     }
+    if (mode == WebGL2RenderingContext.TRIANGLES) {
+        geometry.setExtras({face_triangles_end: [rawIndices.length / 6, rawIndices.length * 2 / 6, rawIndices.length * 3 / 6, rawIndices.length * 4 / 6, rawIndices.length * 5 / 6, rawIndices.length]})
+    } else if (mode == WebGL2RenderingContext.LINES) {
+        geometry.setExtras({edge_points_end: [rawIndices.length / 3, rawIndices.length * 2 / 3, rawIndices.length]})
+    }
     const mesh = doc.createMesh(name + 'Mesh').addPrimitive(geometry)
     const node = doc.createNode(name + 'Node').setMesh(mesh).setMatrix(transform.elements as any)
     scene.addChild(node)
@@ -48,21 +55,25 @@ function buildSimpleGltf(doc: Document, rawPositions: number[], rawIndices: numb
  * Create a new Axes helper as a GLTF model, useful for debugging positions and orientations.
  */
 export function newAxes(doc: Document, size: Vector3, transform: Matrix4) {
+    let rawIndices = [0, 1, 2, 3, 4, 5];
     let rawPositions = [
-        [0, 0, 0, size.x, 0, 0],
-        [0, 0, 0, 0, size.y, 0],
-        [0, 0, 0, 0, 0, -size.z],
+        0, 0, 0, size.x, 0, 0,
+        0, 0, 0, 0, size.y, 0,
+        0, 0, 0, 0, 0, -size.z,
     ];
-    let rawIndices = [0, 1];
     let rawColors = [
-        [...(AxesColors.x[0]), ...(AxesColors.x[1])],
-        [...(AxesColors.y[0]), ...(AxesColors.y[1])],
-        [...(AxesColors.z[0]), ...(AxesColors.z[1])],
-    ].map(g => g.map(x => x / 255.0));
-    buildSimpleGltf(doc, rawPositions[0], rawIndices, rawColors[0], transform, '__helper_axes');
-    buildSimpleGltf(doc, rawPositions[1], rawIndices, rawColors[1], transform, '__helper_axes');
-    buildSimpleGltf(doc, rawPositions[2], rawIndices, rawColors[2], transform, '__helper_axes');
-    buildSimpleGltf(doc, [0, 0, 0], [0], null, transform, '__helper_axes', WebGL2RenderingContext.POINTS);
+        ...(AxesColors.x[0]), 255, ...(AxesColors.x[1]), 255,
+        ...(AxesColors.y[0]), 255, ...(AxesColors.y[1]), 255,
+        ...(AxesColors.z[0]), 255, ...(AxesColors.z[1]), 255
+    ].map(x => x / 255.0);
+    // Axes at (0, 0, 0)
+    buildSimpleGltf(doc, rawPositions, rawIndices, rawColors, new Matrix4(), '__helper_axes');
+    buildSimpleGltf(doc, [0, 0, 0], [0], [1, 1, 1, 1], new Matrix4(), '__helper_axes', WebGL2RenderingContext.POINTS);
+    // Axes at center
+    if (new Matrix4() != transform) {
+        buildSimpleGltf(doc, rawPositions, rawIndices, rawColors, transform, '__helper_axes_center');
+        buildSimpleGltf(doc, [0, 0, 0], [0], [1, 1, 1, 1], transform, '__helper_axes_center', WebGL2RenderingContext.POINTS);
+    }
 }
 
 /**
@@ -71,8 +82,10 @@ export function newAxes(doc: Document, size: Vector3, transform: Matrix4) {
  * The grid is built as a box of triangles (representing lines) looking to the inside of the box.
  * This ensures that only the back of the grid is always visible, regardless of the camera position.
  */
-export function newGridBox(doc: Document, size: Vector3, baseTransform: Matrix4 = new Matrix4(), divisions = 10) {
+export async function newGridBox(doc: Document, size: Vector3, baseTransform: Matrix4, divisions = 10) {
     // Create transformed positions for the inner faces of the box
+    let allPositions: number[] = [];
+    let allIndices: number[] = [];
     for (let axis of [new Vector3(1, 0, 0), new Vector3(0, 1, 0), new Vector3(0, 0, -1)]) {
         for (let positive of [1, -1]) {
             let offset = axis.clone().multiply(size.clone().multiplyScalar(0.5 * positive));
@@ -82,13 +95,25 @@ export function newGridBox(doc: Document, size: Vector3, baseTransform: Matrix4
             if (axis.x) size2.set(size.z, size.y);
             if (axis.y) size2.set(size.x, size.z);
             if (axis.z) size2.set(size.x, size.y);
-            let transform = baseTransform.clone().multiply(translation).multiply(rotation);
-            newGridPlane(doc, size2, transform, divisions);
+            let transform = new Matrix4().multiply(translation).multiply(rotation);
+            let [rawPositions, rawIndices] = newGridPlane(size2, divisions);
+            let baseIndex = allPositions.length / 3;
+            for (let i of rawIndices) {
+                allIndices.push(i + baseIndex);
+            }
+            // Apply transform to the positions before adding them to the list
+            for (let i = 0; i < rawPositions.length; i += 3) {
+                let pos = new Vector3(rawPositions[i], rawPositions[i + 1], rawPositions[i + 2]);
+                pos.applyMatrix4(transform);
+                allPositions.push(pos.x, pos.y, pos.z);
+            }
         }
     }
+    let colors = new Array(allPositions.length / 3 * 4).fill(1);
+    buildSimpleGltf(doc, allPositions, allIndices, colors, baseTransform, '__helper_grid', WebGL2RenderingContext.TRIANGLES);
 }
 
-export function newGridPlane(doc: Document, size: Vector2, transform: Matrix4 = new Matrix4(), divisions = 10, divisionWidth = 0.002) {
+export function newGridPlane(size: Vector2, divisions = 10, divisionWidth = 0.002): [number[], number[]] {
     const rawPositions = [];
     const rawIndices = [];
     // Build the grid as triangles
@@ -114,5 +139,5 @@ export function newGridPlane(doc: Document, size: Vector2, transform: Matrix4 =
         rawIndices.push(baseIndex2, baseIndex2 + 1, baseIndex2 + 2);
         rawIndices.push(baseIndex2, baseIndex2 + 2, baseIndex2 + 3);
     }
-    buildSimpleGltf(doc, rawPositions, rawIndices, null, transform, '__helper_grid', WebGL2RenderingContext.TRIANGLES);
+    return [rawPositions, rawIndices];
 }

frontend/misc/lines.ts

@@ -0,0 +1,55 @@
+import {BufferGeometry} from 'three/src/core/BufferGeometry.js';
+import {Vector2} from 'three/src/math/Vector2.js';
+
+// The following imports must be done dynamically to be able to import three.js separately (smaller bundle sizee)
+// import {LineSegments2} from "three/examples/jsm/lines/LineSegments2.js";
+// import {LineMaterial} from "three/examples/jsm/lines/LineMaterial.js";
+// import {LineSegmentsGeometry} from 'three/examples/jsm/lines/LineSegmentsGeometry.js';
+const LineSegments2Import = import('three/examples/jsm/lines/LineSegments2.js');
+const LineMaterialImport = import('three/examples/jsm/lines/LineMaterial.js');
+const LineSegmentsGeometryImport = import('three/examples/jsm/lines/LineSegmentsGeometry.js');
+
+export async function toLineSegments(bufferGeometry: BufferGeometry, lineWidth: number = 0.1) {
+    const LineSegments2 = (await LineSegments2Import).LineSegments2;
+    const LineMaterial = (await LineMaterialImport).LineMaterial;
+    return new LineSegments2(await toLineSegmentsGeometry(bufferGeometry), new LineMaterial({
+        color: 0xffffffff,
+        vertexColors: true,
+        linewidth: lineWidth, // mm
+        worldUnits: true,
+        resolution: new Vector2(1, 1), // Update resolution on resize!!!
+    }));
+}
+
+async function toLineSegmentsGeometry(bufferGeometry: BufferGeometry) {
+    const LineSegmentsGeometry = (await LineSegmentsGeometryImport).LineSegmentsGeometry;
+    const lg = new LineSegmentsGeometry();
+
+    const position = bufferGeometry.getAttribute('position');
+    const indexAttribute = bufferGeometry.index!!;
+    const positions = [];
+    for (let index = 0; index != indexAttribute.count; ++index) {
+        const i = indexAttribute.getX(index);
+        const x = position.getX(i);
+        const y = position.getY(i);
+        const z = position.getZ(i);
+        positions.push(x, y, z);
+    }
+    lg.setPositions(positions);
+
+    const colors = [];
+    const color = bufferGeometry.getAttribute('color');
+    if (color) {
+        for (let index = 0; index != indexAttribute.count; ++index) {
+            const i = indexAttribute.getX(index);
+            const r = color.getX(i);
+            const g = color.getY(i);
+            const b = color.getZ(i);
+            colors.push(r, g, b);
+        }
+        lg.setColors(colors);
+    }
+
+    lg.userData = bufferGeometry.userData;
+    return lg;
+}

frontend/misc/network.ts

@@ -1,19 +1,38 @@
 import {settings} from "./settings";
 
-export class NetworkUpdateEvent extends Event {
+const batchTimeout = 250; // ms
+
+class NetworkUpdateEventModel {
     name: string;
     url: string;
+    // TODO: Detect and manage instances of the same object (same hash, different name)
+    hash: string | null;
+    isRemove: boolean | null; // This is null for a shutdown event
 
-    constructor(name: string, url: string) {
-        super("update");
+    constructor(name: string, url: string, hash: string | null, isRemove: boolean | null) {
         this.name = name;
         this.url = url;
+        this.hash = hash;
+        this.isRemove = isRemove;
+    }
+}
+
+export class NetworkUpdateEvent extends Event {
+    models: NetworkUpdateEventModel[];
+    disconnect: () => void;
+
+    constructor(models: NetworkUpdateEventModel[], disconnect: () => void) {
+        super("update");
+        this.models = models;
+        this.disconnect = disconnect;
     }
 }
 
 /** Listens for updates and emits events when a model changes */
 export class NetworkManager extends EventTarget {
     private knownObjectHashes: { [name: string]: string | null } = {};
+    private bufferedUpdates: NetworkUpdateEventModel[] = [];
+    private batchTimeout: number | null = null;
 
     /**
      * Tries to load a new model (.glb) from the given URL.
@@ -24,8 +43,10 @@ export class NetworkManager extends EventTarget {
      * Updates will be emitted as "update" events, including the download URL and the model name.
      */
     async load(url: string) {
-        if (url.startsWith("ws://") || url.startsWith("wss://")) {
-            this.monitorWebSocket(url);
+        if (url.startsWith("dev+")) {
+            let baseUrl = new URL(url.slice(4));
+            baseUrl.searchParams.set("api_updates", "true");
+            await this.monitorDevServer(baseUrl);
         } else {
             // Get the last part of the URL as the "name" of the model
             let name = url.split("/").pop();
@@ -34,32 +55,78 @@ export class NetworkManager extends EventTarget {
             let response = await fetch(url, {method: "HEAD"});
             let hash = response.headers.get("etag");
             // Only trigger an update if the hash has changed
-            this.foundModel(name, hash, url);
+            this.foundModel(name, hash, url, false);
         }
     }
 
-    private monitorWebSocket(url: string) {
-        // WARNING: This will spam the console logs with failed requests when the server is down
-        let ws = new WebSocket(url);
-        ws.onmessage = (event) => {
-            let data = JSON.parse(event.data);
-            console.debug("WebSocket message", data);
-            let urlObj = new URL(url);
-            urlObj.protocol = urlObj.protocol === "ws:" ? "http:" : "https:";
-            urlObj.searchParams.set("api_object", data.name);
-            this.foundModel(data.name, data.hash, urlObj.toString());
-        };
-        ws.onerror = () => ws.close();
-        ws.onclose = () => setTimeout(() => this.monitorWebSocket(url), settings.monitorEveryMs);
-        let timeoutFaster = setTimeout(() => ws.close(), settings.monitorOpenTimeoutMs);
-        ws.onopen = () => clearTimeout(timeoutFaster);
+    private async monitorDevServer(url: URL, stop: () => boolean = () => false) {
+        while (!stop()) {
+            try {
+                // WARNING: This will spam the console logs with failed requests when the server is down
+                const controller = new AbortController();
+                let response = await fetch(url.toString(), {signal: controller.signal});
+                // console.log("Monitoring", url.toString(), response);
+                if (response.status === 200) {
+                    let lines = readLinesStreamings(response.body!.getReader());
+                    for await (let line of lines) {
+                        if (stop()) break;
+                        if (!line || !line.startsWith("data:")) continue;
+                        let data: { name: string, hash: string, is_remove: boolean | null } = JSON.parse(line.slice(5));
+                        // console.debug("WebSocket message", data);
+                        let urlObj = new URL(url);
+                        urlObj.searchParams.delete("api_updates");
+                        urlObj.searchParams.set("api_object", data.name);
+                        this.foundModel(data.name, data.hash, urlObj.toString(), data.is_remove, async () => {
+                            controller.abort(); // Notify the server that we are done
+                        });
+                    }
+                }
+                controller.abort();
+            } catch (e) { // Ignore errors (retry very soon)
+            }
+            await new Promise(resolve => setTimeout(resolve, settings.monitorEveryMs));
+        }
     }
 
-    private foundModel(name: string, hash: string | null, url: string) {
+    private foundModel(name: string, hash: string | null, url: string, isRemove: boolean | null, disconnect: () => void = () => {
+    }) {
         let prevHash = this.knownObjectHashes[name];
-        if (!hash || hash !== prevHash) {
-            this.knownObjectHashes[name] = hash;
-            this.dispatchEvent(new NetworkUpdateEvent(name, url));
+        // console.debug("Found model", name, "with hash", hash, "and previous hash", prevHash);
+        if (!hash || hash !== prevHash || isRemove) {
+            // Update known hashes
+            if (isRemove == false) {
+                this.knownObjectHashes[name] = hash;
+            } else if (isRemove == true) {
+                if (!(name in this.knownObjectHashes)) return; // Nothing to remove...
+                delete this.knownObjectHashes[name];
+                // Also update buffered updates if the model is removed
+                this.bufferedUpdates = this.bufferedUpdates.filter(m => m.name !== name);
+            }
+            let newModel = new NetworkUpdateEventModel(name, url, hash, isRemove);
+            this.bufferedUpdates.push(newModel);
+
+            // Optimization: try to batch updates automatically for faster rendering
+            if (this.batchTimeout !== null) clearTimeout(this.batchTimeout);
+            this.batchTimeout = setTimeout(() => {
+                this.dispatchEvent(new NetworkUpdateEvent(this.bufferedUpdates, disconnect));
+                this.bufferedUpdates = [];
+            }, batchTimeout);
         }
     }
+}
+
+async function* readLinesStreamings(reader: ReadableStreamDefaultReader<Uint8Array>) {
+    let decoder = new TextDecoder();
+    let buffer = new Uint8Array();
+    while (true) {
+        let {value, done} = await reader.read();
+        if (done || !value) break;
+        buffer = new Uint8Array([...buffer, ...value]);
+        let text = decoder.decode(buffer);
+        let lines = text.split("\n");
+        for (let i = 0; i < lines.length - 1; i++) {
+            yield lines[i];
+        }
+        buffer = new Uint8Array([...buffer.slice(-1)]);
+    }
 }

frontend/misc/scene.ts

@@ -9,19 +9,23 @@ import {Matrix4} from "three/src/math/Matrix4.js"
 /** This class helps manage SceneManagerData. All methods are static to support reactivity... */
 export class SceneMgr {
     /** Loads a GLB model from a URL and adds it to the viewer or replaces it if the names match */
-    static async loadModel(sceneUrl: Ref<string>, document: Document, name: string, url: string): Promise<Document> {
+    static async loadModel(sceneUrl: Ref<string>, document: Document, name: string, url: string, updateHelpers: boolean = true, reloadScene: boolean = true): Promise<Document> {
         let loadStart = performance.now();
+        let loadNetworkEnd: number;
 
         // Start merging into the current document, replacing or adding as needed
-        document = await mergePartial(url, name, document);
+        document = await mergePartial(url, name, document, () => loadNetworkEnd = performance.now());
 
-        console.log("Model", name, "loaded in", performance.now() - loadStart, "ms");
+        console.log("Model", name, "loaded in", performance.now() - loadNetworkEnd!, "ms after",
+            loadNetworkEnd! - loadStart, "ms of transferring data (maybe building the object on the server)");
 
-        if (name !== extrasNameValueHelpers) {
+        if (updateHelpers) {
             // Reload the helpers to fit the new model
-            // TODO: Only reload the helpers after a few milliseconds of no more models being added/removed
-            document = await this.reloadHelpers(sceneUrl, document);
-        } else {
+            await this.reloadHelpers(sceneUrl, document, reloadScene);
+            reloadScene = false;
+        }
+
+        if (reloadScene) {
             // Display the final fully loaded model
             let displayStart = performance.now();
             document = await this.showCurrentDoc(sceneUrl, document);
@@ -31,8 +35,9 @@ export class SceneMgr {
         return document;
     }
 
-    private static async reloadHelpers(sceneUrl: Ref<string>, document: Document): Promise<Document> {
+    private static async reloadHelpers(sceneUrl: Ref<string>, document: Document, reloadScene: boolean): Promise<Document> {
         let bb = SceneMgr.getBoundingBox(document);
+        if (!bb) return document;
 
         // Create the helper axes and grid box
         let helpersDoc = new Document();
@@ -40,10 +45,11 @@ export class SceneMgr {
         newAxes(helpersDoc, bb.getSize(new Vector3()).multiplyScalar(0.5), transform);
         newGridBox(helpersDoc, bb.getSize(new Vector3()), transform);
         let helpersUrl = URL.createObjectURL(new Blob([await toBuffer(helpersDoc)]));
-        return await SceneMgr.loadModel(sceneUrl, document, extrasNameValueHelpers, helpersUrl);
+        return await SceneMgr.loadModel(sceneUrl, document, extrasNameValueHelpers, helpersUrl, false, reloadScene);
     }
 
-    static getBoundingBox(document: Document): Box3 {
+    static getBoundingBox(document: Document): Box3 | null {
+        if (document.getRoot().listNodes().length === 0) return null;
         // Get bounding box of the model and use it to set the size of the helpers
         let bbMin: number[] = [1e6, 1e6, 1e6];
         let bbMax: number[] = [-1e6, -1e6, -1e6];
@@ -67,7 +73,7 @@ export class SceneMgr {
     }
 
     /** Removes a model from the viewer */
-    static async removeModel(sceneUrl: Ref<string>, document: Document, name: string): Promise<Document> {
+    static async removeModel(sceneUrl: Ref<string>, document: Document, name: string, updateHelpers: boolean = true, reloadScene: boolean = true): Promise<Document> {
         let loadStart = performance.now();
 
         // Remove the model from the document
@@ -75,8 +81,10 @@ export class SceneMgr {
 
         console.log("Model", name, "removed in", performance.now() - loadStart, "ms");
 
-        // Reload the helpers to fit the new model (will also show the document)
-        document = await this.reloadHelpers(sceneUrl, document);
+        if (updateHelpers) {
+            // Reload the helpers to fit the new model (will also show the document)
+            document = await this.reloadHelpers(sceneUrl, document, reloadScene);
+        }
 
         return document;
     }

frontend/misc/settings.ts

@@ -1,6 +1,6 @@
 // These are the default values for the settings, which are overridden below
 export const settings = {
-    preloadModels: [
+    preload: [
         // @ts-ignore
         // new URL('../../assets/fox.glb', import.meta.url).href,
         // @ts-ignore
@@ -10,11 +10,13 @@ export const settings = {
         // @ts-ignore
         // new URL('../../assets/logo_build/img.jpg.glb', import.meta.url).href,
         // Websocket URLs automatically listen for new models from the python backend
-        "ws://127.0.0.1:32323/"
+        "dev+http://127.0.0.1:32323/"
     ],
+    loadHelpers: true,
+    edgeWidth: 0, /* The default line size for edges, set to 0 to use basic gl.LINEs */
     displayLoadingEveryMs: 1000, /* How often to display partially loaded models */
     monitorEveryMs: 100,
-    monitorOpenTimeoutMs: 100,
+    monitorOpenTimeoutMs: 1000,
     // ModelViewer settings
     autoplay: true,
     arModes: 'webxr scene-viewer quick-look',
@@ -29,15 +31,19 @@ function parseSetting(name: string, value: string): any {
     if (arrayElem) name = name.slice(0, -2);
     let prevValue = (settings as any)[name];
     if (prevValue === undefined) throw new Error(`Unknown setting: ${name}`);
-    if (Array.isArray(prevValue) && !arrayElem) {
-        let toExtend = []
-        if (!firstTimeNames.includes(name)) {
-            firstTimeNames.push(name);
+    if (Array.isArray(prevValue)) {
+        if (!arrayElem) {
+            let toExtend = []
+            if (!firstTimeNames.includes(name)) {
+                firstTimeNames.push(name);
+            } else {
+                toExtend = prevValue;
+            }
+            toExtend.push(parseSetting(name + ".0", value));
+            return toExtend;
         } else {
-            toExtend = prevValue;
+            prevValue = prevValue[0];
         }
-        toExtend.push(parseSetting(name + ".0", value));
-        return toExtend;
     }
     switch (typeof prevValue) {
         case 'boolean':
@@ -47,7 +53,7 @@ function parseSetting(name: string, value: string): any {
         case 'string':
             return value;
         default:
-            throw new Error(`Unknown setting type: ${typeof prevValue}`);
+            throw new Error(`Unknown setting type: ${typeof prevValue} -- ${prevValue}`);
     }
 }
 

frontend/models/Model.vue

@@ -22,16 +22,18 @@ import {
   mdiRectangle,
   mdiRectangleOutline,
   mdiSwapHorizontal,
+  mdiVectorLine,
   mdiVectorRectangle
 } from '@mdi/js'
 import SvgIcon from '@jamescoyle/vue-icon';
-import {SceneMgr} from "../misc/scene";
 import {BackSide, FrontSide} from "three/src/constants.js";
 import {Box3} from "three/src/math/Box3.js";
 import {Color} from "three/src/math/Color.js";
 import {Plane} from "three/src/math/Plane.js";
 import {Vector3} from "three/src/math/Vector3.js";
 import type {MObject3D} from "../tools/Selection.vue";
+import {toLineSegments} from "../misc/lines.js";
+import {settings} from "../misc/settings.js";
 
 const props = defineProps<{
   meshes: Array<Mesh>,
@@ -44,17 +46,29 @@ let modelName = props.meshes[0].getExtras()[extrasNameKey] // + " blah blah blah
 // Reactive properties
 const enabledFeatures = defineModel<Array<number>>("enabledFeatures", {default: [0, 1, 2]});
 const opacity = defineModel<number>("opacity", {default: 1});
+const wireframe = ref(false);
+// Clipping planes are handled in y-up space (swapped on interface, Z inverted later)
 const clipPlaneX = ref(1);
 const clipPlaneSwappedX = ref(false);
 const clipPlaneY = ref(1);
 const clipPlaneSwappedY = ref(false);
 const clipPlaneZ = ref(1);
 const clipPlaneSwappedZ = ref(false);
+const edgeWidth = ref(settings.edgeWidth);
 
 // Count the number of faces, edges and vertices
-let faceCount = props.meshes.map((m) => m.listPrimitives().filter(p => p.getMode() === WebGL2RenderingContext.TRIANGLES).length).reduce((a, b) => a + b, 0)
-let edgeCount = props.meshes.map((m) => m.listPrimitives().filter(p => p.getMode() in [WebGL2RenderingContext.LINE_STRIP, WebGL2RenderingContext.LINES]).length).reduce((a, b) => a + b, 0)
-let vertexCount = props.meshes.map((m) => m.listPrimitives().filter(p => p.getMode() === WebGL2RenderingContext.POINTS).length).reduce((a, b) => a + b, 0)
+let faceCount = props.meshes
+    .flatMap((m) => m.listPrimitives().filter(p => p.getMode() === WebGL2RenderingContext.TRIANGLES))
+    .map(p => (p.getExtras()?.face_triangles_end as any)?.length ?? 1)
+    .reduce((a, b) => a + b, 0)
+let edgeCount = props.meshes
+    .flatMap((m) => m.listPrimitives().filter(p => p.getMode() in [WebGL2RenderingContext.LINE_STRIP, WebGL2RenderingContext.LINES]))
+    .map(p => (p.getExtras()?.edge_points_end as any)?.length ?? 0)
+    .reduce((a, b) => a + b, 0)
+let vertexCount = props.meshes
+    .flatMap((m) => m.listPrimitives().filter(p => p.getMode() === WebGL2RenderingContext.POINTS))
+    .map(p => (p.getAttribute("POSITION")?.getCount() ?? 0))
+    .reduce((a, b) => a + b, 0)
 
 // Set initial defaults for the enabled features
 if (faceCount === 0) enabledFeatures.value = enabledFeatures.value.filter((f) => f !== 0)
@@ -73,7 +87,7 @@ function onEnabledFeaturesChange(newEnabledFeatures: Array<number>) {
   sceneModel.traverse((child: MObject3D) => {
     if (child.userData[extrasNameKey] === modelName) {
       let childIsFace = child.type == 'Mesh' || child.type == 'SkinnedMesh'
-      let childIsEdge = child.type == 'Line' || child.type == 'LineSegments'
+      let childIsEdge = child.type == 'Line' || child.type == 'LineSegments' || child.type == 'LineSegments2'
       let childIsVertex = child.type == 'Points'
       if (childIsFace || childIsEdge || childIsVertex) {
         let visible = newEnabledFeatures.includes(childIsFace ? 0 : childIsEdge ? 1 : childIsVertex ? 2 : -1);
@@ -111,6 +125,27 @@ function onOpacityChange(newOpacity: number) {
 
 watch(opacity, onOpacityChange);
 
+function onWireframeChange(newWireframe: boolean) {
+  let scene = props.viewer?.scene;
+  let sceneModel = (scene as any)?._model;
+  if (!scene || !sceneModel) return;
+  // Iterate all primitives of the mesh and set their wireframe based on the enabled features
+  // Use the scene graph instead of the document to avoid reloading the same model, at the cost
+  // of not actually removing the primitives from the scene graph
+  // console.log('Wireframe may have changed', newWireframe)
+  sceneModel.traverse((child: MObject3D) => {
+    if (child.userData[extrasNameKey] === modelName) {
+      if (child.material && child.material.wireframe !== newWireframe) {
+        child.material.wireframe = newWireframe;
+        child.material.needsUpdate = true;
+      }
+    }
+  });
+  scene.queueRender()
+}
+
+watch(wireframe, onWireframeChange);
+
 let {sceneDocument} = inject<{ sceneDocument: ShallowRef<Document> }>('sceneDocument')!!;
 
 function onClipPlanesChange() {
@@ -125,21 +160,25 @@ function onClipPlanesChange() {
   if (props.viewer?.renderer && (enabledX || enabledY || enabledZ)) {
     // Global value for all models, once set it cannot be unset (unknown for other models...)
     props.viewer.renderer.threeRenderer.localClippingEnabled = true;
-    // Due to model-viewer's camera manipulation, the bounding box needs to be transformed
-    bbox = SceneMgr.getBoundingBox(sceneDocument.value);
-    bbox.translate(scene.getTarget());
+    // Get the bounding box containing all features of this model
+    bbox = new Box3();
+    sceneModel.traverse((child: MObject3D) => {
+      if (child.userData[extrasNameKey] === modelName) {
+        bbox.expandByObject(child);
+      }
+    });
   }
   sceneModel.traverse((child: MObject3D) => {
     if (child.userData[extrasNameKey] === modelName) {
       if (child.material) {
-        if (bbox) {
+        if (bbox?.isEmpty() == false) {
           let offsetX = bbox.min.x + clipPlaneX.value * (bbox.max.x - bbox.min.x);
-          let offsetY = bbox.min.z + clipPlaneY.value * (bbox.max.z - bbox.min.z);
-          let offsetZ = bbox.min.y + clipPlaneZ.value * (bbox.max.y - bbox.min.y);
+          let offsetY = bbox.min.y + clipPlaneY.value * (bbox.max.y - bbox.min.y);
+          let offsetZ = bbox.min.z + (1 - clipPlaneZ.value) * (bbox.max.z - bbox.min.z);
           let planes = [
             new Plane(new Vector3(-1, 0, 0), offsetX),
-            new Plane(new Vector3(0, 0, 1), offsetY),
-            new Plane(new Vector3(0, -1, 0), offsetZ),
+            new Plane(new Vector3(0, -1, 0), offsetY),
+            new Plane(new Vector3(0, 0, 1), -offsetZ),
           ];
           if (clipPlaneSwappedX.value) planes[0].negate();
           if (clipPlaneSwappedY.value) planes[1].negate();
@@ -168,6 +207,63 @@ watch(clipPlaneSwappedZ, onClipPlanesChange);
 // Clip planes are also affected by the camera position, so we need to listen to camera changes
 props.viewer!!.onElemReady((elem) => elem.addEventListener('camera-change', onClipPlanesChange))
 
+let edgeWidthChangeCleanup = [] as Array<() => void>;
+
+function onEdgeWidthChange(newEdgeWidth: number) {
+  let scene = props.viewer?.scene;
+  let sceneModel = (scene as any)?._model;
+  if (!scene || !sceneModel) return;
+  edgeWidthChangeCleanup.forEach((f) => f());
+  edgeWidthChangeCleanup = [];
+  let linesToImprove: Array<MObject3D> = [];
+  sceneModel.traverse((child: MObject3D) => {
+    if (child.userData[extrasNameKey] === modelName) {
+      if (child.type == 'Line' || child.type == 'LineSegments') {
+        // child.material.linewidth = 3; // Not supported in WebGL2
+        // Swap geometry with LineGeometry to support widths
+        // https://threejs.org/examples/?q=line#webgl_lines_fat
+        if (newEdgeWidth > 0) linesToImprove.push(child);
+      }
+      if (child.type == 'Points') {
+        (child.material as any).size = newEdgeWidth > 0 ? newEdgeWidth * 50 : 5;
+        child.material.needsUpdate = true;
+      }
+    }
+  });
+  linesToImprove.forEach(async (line: MObject3D) => {
+    let line2 = await toLineSegments(line.geometry, newEdgeWidth);
+    // Update resolution on resize
+    let resizeListener = (elem: HTMLElement) => {
+      line2.material.resolution.set(elem.clientWidth, elem.clientHeight);
+      line2.material.needsUpdate = true;
+    };
+    props.viewer!!.onElemReady((elem) => {
+      elem.addEventListener('resize', () => resizeListener(elem));
+      resizeListener(elem);
+    });
+    // Copy the transform of the original line
+    line2.position.copy(line.position);
+    line2.computeLineDistances();
+    line2.userData = Object.assign({}, line.userData);
+    line.parent!.add(line2);
+    line.children.forEach((o) => line2.add(o));
+    line.visible = false;
+    line.userData.niceLine = line2;
+    // line.parent!.remove(line); // Keep it for better raycast and selection!
+    line2.userData.noHit = true;
+    edgeWidthChangeCleanup.push(() => {
+      line2.parent!.remove(line2);
+      line.visible = true;
+      props.viewer!!.onElemReady((elem) => {
+        elem.removeEventListener('resize', () => resizeListener(elem));
+      });
+    });
+  });
+  scene.queueRender()
+}
+
+watch(edgeWidth, onEdgeWidthChange);
+
 function onModelLoad() {
   let scene = props.viewer?.scene;
   let sceneModel = (scene as any)?._model;
@@ -179,6 +275,12 @@ function onModelLoad() {
   sceneModel.traverse((child: MObject3D) => {
     if (child.userData[extrasNameKey] === modelName) {
       if (child.type == 'Mesh' || child.type == 'SkinnedMesh') {
+        // Compute a BVH for faster raycasting (MUCH faster selection)
+        // @ts-ignore
+        child.geometry?.computeBoundsTree({indirect: true}); // indirect to avoid changing index order
+        // TODO: Accelerated raycast for lines and points (https://github.com/gkjohnson/three-mesh-bvh/issues/243)
+        // TODO: ParallelMeshBVHWorker
+
         // We could implement cutting planes using the stencil buffer:
         // https://threejs.org/examples/?q=clipping#webgl_clipping_stencil
         // But this is buggy for lots of models, so instead we just draw
@@ -192,30 +294,28 @@ function onModelLoad() {
           backChild.material = child.material.clone();
           backChild.material.side = BackSide;
           backChild.material.color = new Color(0.25, 0.25, 0.25)
+          backChild.userData.noHit = true;
           child.userData.backChild = backChild;
           childrenToAdd.push(backChild as MObject3D);
         }
       }
-      // if (child.type == 'Line' || child.type == 'LineSegments') {
-      // child.material.linewidth = 3; // Not supported in WebGL2
-      // If wide lines are really needed, we need https://threejs.org/examples/?q=line#webgl_lines_fat
-      // }
-      if (child.type == 'Points') {
-        (child.material as any).size = 5;
-        child.material.needsUpdate = true;
-      }
     }
   });
   childrenToAdd.forEach((child: MObject3D) => sceneModel.add(child));
-  scene.queueRender()
 
   // Furthermore...
   // Enabled features may have been reset after a reload
   onEnabledFeaturesChange(enabledFeatures.value)
   // Opacity may have been reset after a reload
   onOpacityChange(opacity.value)
+  // Wireframe may have been reset after a reload
+  onWireframeChange(wireframe.value)
   // Clip planes may have been reset after a reload
   onClipPlanesChange()
+  // Edge width may have been reset after a reload
+  onEdgeWidthChange(edgeWidth.value)
+
+  scene.queueRender()
 }
 
 // props.viewer.elem may not yet be available, so we need to wait for it
@@ -252,6 +352,16 @@ props.viewer!!.onElemReady((elem) => elem.addEventListener('load', onModelLoad))
           <v-tooltip activator="parent">Change opacity</v-tooltip>
           <svg-icon type="mdi" :path="mdiCircleOpacity"></svg-icon>
         </template>
+        <template v-slot:append>
+          <v-tooltip activator="parent">Wireframe</v-tooltip>
+          <v-checkbox-btn trueIcon="mdi-triangle-outline" falseIcon="mdi-triangle" v-model="wireframe"></v-checkbox-btn>
+        </template>
+      </v-slider>
+      <v-slider v-if="edgeCount > 0 || vertexCount > 0" v-model="edgeWidth" hide-details min="0" max="1">
+        <template v-slot:prepend>
+          <v-tooltip activator="parent">Edge and vertex sizes</v-tooltip>
+          <svg-icon type="mdi" :path="mdiVectorLine"></svg-icon>
+        </template>
       </v-slider>
       <v-divider></v-divider>
       <v-slider v-model="clipPlaneX" hide-details min="0" max="1">
@@ -270,7 +380,7 @@ props.viewer!!.onElemReady((elem) => elem.addEventListener('load', onModelLoad))
           </v-checkbox-btn>
         </template>
       </v-slider>
-      <v-slider v-model="clipPlaneY" hide-details min="0" max="1">
+      <v-slider v-model="clipPlaneZ" hide-details min="0" max="1">
         <template v-slot:prepend>
           <v-tooltip activator="parent">Clip plane Y</v-tooltip>
           <svg-icon type="mdi" :path="mdiCube" :rotate="-120"></svg-icon>
@@ -279,14 +389,14 @@ props.viewer!!.onElemReady((elem) => elem.addEventListener('load', onModelLoad))
         <template v-slot:append>
           <v-tooltip activator="parent">Swap clip plane Y</v-tooltip>
           <v-checkbox-btn trueIcon="mdi-checkbox-marked-outline" falseIcon="mdi-checkbox-blank-outline"
-                          v-model="clipPlaneSwappedY">
+                          v-model="clipPlaneSwappedZ">
             <template v-slot:label>
               <svg-icon type="mdi" :path="mdiSwapHorizontal"></svg-icon>
             </template>
           </v-checkbox-btn>
         </template>
       </v-slider>
-      <v-slider v-model="clipPlaneZ" hide-details min="0" max="1">
+      <v-slider v-model="clipPlaneY" hide-details min="0" max="1">
         <template v-slot:prepend>
           <v-tooltip activator="parent">Clip plane Z</v-tooltip>
           <svg-icon type="mdi" :path="mdiCube"></svg-icon>
@@ -295,7 +405,7 @@ props.viewer!!.onElemReady((elem) => elem.addEventListener('load', onModelLoad))
         <template v-slot:append>
           <v-tooltip activator="parent">Swap clip plane Z</v-tooltip>
           <v-checkbox-btn trueIcon="mdi-checkbox-marked-outline" falseIcon="mdi-checkbox-blank-outline"
-                          v-model="clipPlaneSwappedZ">
+                          v-model="clipPlaneSwappedY">
             <template v-slot:label>
               <svg-icon type="mdi" :path="mdiSwapHorizontal"></svg-icon>
             </template>
@@ -358,4 +468,12 @@ props.viewer!!.onElemReady((elem) => elem.addEventListener('load', onModelLoad))
 .mdi-checkbox-marked-outline { /* HACK: mdi is not fully imported, only required icons... */
   background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M19,19H5V5H15V3H5C3.89,3 3,3.89 3,5V19A2,2 0 0,0 5,21H19A2,2 0 0,0 21,19V11H19M7.91,10.08L6.5,11.5L11,16L21,6L19.59,4.58L11,13.17L7.91,10.08Z"/></svg>');
 }
+
+.mdi-triangle { /* HACK: mdi is not fully imported, only required icons... */
+  background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M1 21h22L12 2"/></svg>');
+}
+
+.mdi-triangle-outline { /* HACK: mdi is not fully imported, only required icons... */
+  background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M12 2L1 21h22M12 6l7.53 13H4.47"/></svg>');
+}
 </style>

frontend/tools/OrientationGizmo.vue

@@ -8,7 +8,7 @@ import type {ModelViewerElement} from '@google/model-viewer';
 import {Vector3} from "three/src/math/Vector3.js";
 import {Matrix4} from "three/src/math/Matrix4.js";
 
-globalThis.THREE = {Vector3, Matrix4} as any // HACK: Required for the gizmo to work
+(globalThis as any).THREE = {Vector3, Matrix4} as any // HACK: Required for the gizmo to work
 
 const OrientationGizmo = OrientationGizmoRaw.default;
 
@@ -47,7 +47,7 @@ function createGizmo(expectedParent: HTMLElement, scene: ModelScene): HTMLElemen
     }
     scene.queueRender();
     requestIdleCallback(() => props.elem?.dispatchEvent(
-        new CustomEvent('camera-change', {detail: {source: 'none'}})))
+        new CustomEvent('camera-change', {detail: {source: 'none'}})), {timeout: 100})
   }
   return gizmo;
 }
@@ -60,7 +60,7 @@ let gizmo: HTMLElement & { update: () => void }
 function updateGizmo() {
   if (gizmo.isConnected) {
     gizmo.update();
-    requestIdleCallback(updateGizmo);
+    requestIdleCallback(updateGizmo, {timeout: 250});
   }
 }
 
@@ -69,7 +69,7 @@ let reinstall = () => {
   if (gizmo) container.value.removeChild(gizmo);
   gizmo = createGizmo(container.value, props.scene as ModelScene) as typeof gizmo;
   container.value.appendChild(gizmo);
-  requestIdleCallback(updateGizmo); // Low priority updates
+  requestIdleCallback(updateGizmo, {timeout: 250}); // Low priority updates
 }
 onMounted(reinstall)
 onUpdated(reinstall);

frontend/tools/Selection.vue

@@ -6,24 +6,28 @@ import type {ModelViewerElement} from '@google/model-viewer';
 import type {ModelScene} from "@google/model-viewer/lib/three-components/ModelScene";
 import {mdiCubeOutline, mdiCursorDefaultClick, mdiFeatureSearch, mdiRuler} from '@mdi/js';
 import type {Intersection, Material, Mesh, Object3D} from "three";
-import {Box3, Matrix4, Raycaster, Vector3} from "three";
+import {Box3, Color, Raycaster, Vector3} from "three";
 import type ModelViewerWrapperT from "../viewer/ModelViewerWrapper.vue";
 import {extrasNameKey} from "../misc/gltf";
 import {SceneMgr} from "../misc/scene";
 import {Document} from "@gltf-transform/core";
 import {AxesColors} from "../misc/helpers";
 import {distances} from "../misc/distances";
+import {highlight, highlightUndo, hitToSelectionInfo, type SelectionInfo} from "./selection";
 
 export type MObject3D = Mesh & {
   userData: { noHit?: boolean },
-  material: Material & { color: { r: number, g: number, b: number }, __prevBaseColorFactor?: [number, number, number] }
+  material: Material & {
+    color: Color,
+    wireframe?: boolean
+  }
 };
 
 let props = defineProps<{ viewer: typeof ModelViewerWrapperT | null }>();
 let emit = defineEmits<{ findModel: [string] }>();
 let {setDisableTap} = inject<{ setDisableTap: (arg0: boolean) => void }>('disableTap')!!;
 let selectionEnabled = ref(false);
-let selected = defineModel<Array<Intersection<MObject3D>>>({default: []});
+let selected = defineModel<Array<SelectionInfo>>({default: []});
 let highlightNextSelection = ref([false, false]); // Second is whether selection was enabled before
 let showBoundingBox = ref<Boolean>(false); // Enabled automatically on start
 let showDistances = ref<Boolean>(true);
@@ -54,15 +58,22 @@ let selectionListener = (event: MouseEvent) => {
   }
 
   // Set raycaster parameters
+  let paramScale = 1; // Make it easier to select vertices/edges based on camera distance
+  if (props.viewer?.scene) {
+    let scene = props.viewer.scene;
+    let lookAtCenter = scene.getTarget().clone().add(scene.target.position);
+    paramScale = scene.camera.position.distanceTo(lookAtCenter) / 150;
+    // console.log('paramScale', paramScale)
+  }
   if (selectFilter.value === 'Any (S)') {
-    raycaster.params.Line.threshold = 0.2;
-    raycaster.params.Points.threshold = 0.8;
+    raycaster.params.Line.threshold = paramScale;
+    raycaster.params.Points.threshold = paramScale * 2;  // Make vertices easier to select than edges
   } else if (selectFilter.value === '(E)dges') {
-    raycaster.params.Line.threshold = 0.8;
+    raycaster.params.Line.threshold = paramScale;
     raycaster.params.Points.threshold = 0.0;
   } else if (selectFilter.value === '(V)ertices') {
     raycaster.params.Line.threshold = 0.0;
-    raycaster.params.Points.threshold = 0.8;
+    raycaster.params.Points.threshold = paramScale;
   } else if (selectFilter.value === '(F)aces') {
     raycaster.params.Line.threshold = 0.0;
     raycaster.params.Points.threshold = 0.0;
@@ -74,7 +85,7 @@ let selectionListener = (event: MouseEvent) => {
   const ndcCoords = scene.getNDC(event.clientX, event.clientY);
   raycaster.setFromCamera(ndcCoords, scene.camera);
   if (!scene.camera.isPerspectiveCamera) {
-    // Need to fix the ray direction for ortho camera FIXME: Still buggy...
+    // Need to fix the ray direction for ortho camera FIXME: Still buggy for off-center clicks
     raycaster.ray.direction.copy(scene.camera.getWorldDirection(new Vector3()));
   }
   //console.log('Ray', raycaster.ray);
@@ -85,31 +96,69 @@ let selectionListener = (event: MouseEvent) => {
   // let lineHandle = props.viewer?.addLine3D(actualFrom, actualTo, "Ray")
   // setTimeout(() => props.viewer?.removeLine3D(lineHandle), 30000)
 
-  // Find all hit objects and select the wanted one based on the filter
-  const hits = raycaster.intersectObject(scene, true);
-  let hit = hits.find((hit: Intersection<Object3D>) => {
-    if (!hit.object || !(hit.object as any).isMesh) return false;
-    const kind = hit.object.type
+  // Find all hit objects and raycast the wanted ones based on the filter
+  let objects: Array<any> = [];
+  scene.traverse((obj) => {
+    const kind = obj.type
     let isFace = kind === 'Mesh' || kind === 'SkinnedMesh';
     let isEdge = kind === 'Line' || kind === 'LineSegments';
     let isVertex = kind === 'Points';
-    const kindOk = (selectFilter.value === 'Any (S)') ||
-        (isFace && selectFilter.value === '(F)aces') ||
-        (isEdge && selectFilter.value === '(E)dges') ||
-        (isVertex && selectFilter.value === '(V)ertices');
-    return hit.object.visible && !hit.object.userData.noHit && kindOk;
-  }) as Intersection<MObject3D> | undefined;
-  //console.log('Hit', hit)
+    if (obj.userData.noHit !== true &&
+        ((selectFilter.value === 'Any (S)' && (isFace || isEdge || isVertex)) ||
+            (selectFilter.value === '(F)aces' && isFace) ||
+            (selectFilter.value === '(E)dges' && isEdge) ||
+            (selectFilter.value === '(V)ertices' && isVertex))) {
+      objects.push(obj);
+    }
+  });
+  //console.log("Raycasting objects", objects)
+
+  // Run the raycaster on the selected objects only searching for the first hit
+  // @ts-ignore
+  raycaster.firstHitOnly = true;
+  const hits = raycaster.intersectObjects(objects, false);
+  let hit = hits
+      // Check feasibility
+      .filter((hit: Intersection<Object3D>) => {
+        if (!hit.object) return false;
+        const kind = hit.object.type
+        let isFace = kind === 'Mesh' || kind === 'SkinnedMesh';
+        let isEdge = kind === 'Line' || kind === 'LineSegments';
+        let isVertex = kind === 'Points';
+        const kindOk = (selectFilter.value === 'Any (S)') ||
+            (isFace && selectFilter.value === '(F)aces') ||
+            (isEdge && selectFilter.value === '(E)dges') ||
+            (isVertex && selectFilter.value === '(V)ertices');
+        return (!isFace || hit.object.visible) && kindOk;
+      })
+      // Sort for highlighting partially hidden edges/vertices
+      .sort((a, b) => {
+        function lowerIsBetter(hit: Intersection<Object3D>) {
+          let score = hit.distance;
+          // Faces are easier to hit than 0-width edges/vertices, so we need to adjust scores
+          if (hit.object.type === 'Mesh' || hit.object.type === 'SkinnedMesh') score += paramScale;
+          // Edges are easier to hit than vertices, so we need to adjust scores
+          if (hit.object.type === 'Line' || hit.object.type === 'LineSegments') score += paramScale / 2;
+          return score;
+        }
+
+        return lowerIsBetter(a) - lowerIsBetter(b);
+      })
+      // Return the best hit
+      [0] as Intersection<MObject3D> | undefined;
 
   if (!highlightNextSelection.value[0]) {
     // If we are selecting, toggle the selection or deselect all if no hit
-    if (hit) {
+    let selInfo: SelectionInfo | null = null;
+    if (hit) selInfo = hitToSelectionInfo(hit);
+    //console.log('Hit', hit, 'SelInfo', selInfo);
+    if (hit && selInfo !== null) {
       // Toggle selection
-      const wasSelected = selected.value.find((m) => m.object.name === hit?.object?.name) !== undefined;
+      const wasSelected = selected.value.find((m) => m.getKey() === selInfo.getKey()) !== undefined;
       if (wasSelected) {
-        deselect(hit)
+        deselect(selInfo)
       } else {
-        select(hit)
+        select(selInfo)
       }
     } else {
       deselectAll();
@@ -125,34 +174,22 @@ let selectionListener = (event: MouseEvent) => {
   scene.queueRender() // Force rerender of model-viewer
 }
 
-function select(hit: Intersection<MObject3D>) {
-  console.log('Selecting', hit.object.name)
-  if (selected.value.find((m) => m.object.name === hit.object.name) === undefined) {
-    selected.value.push(hit);
+function select(selInfo: SelectionInfo) {
+  // console.log('Selecting', selInfo.object.name)
+  if (selected.value.find((m) => m.getKey() === selInfo.getKey()) === undefined) {
+    selected.value.push(selInfo);
   }
-  hit.object.material.__prevBaseColorFactor = [
-    hit.object.material.color.r,
-    hit.object.material.color.g,
-    hit.object.material.color.b,
-  ];
-  hit.object.material.color.r = 1;
-  hit.object.material.color.g = 0;
-  hit.object.material.color.b = 0;
+  highlight(selInfo);
 }
 
-function deselect(hit: Intersection<MObject3D>, alsoRemove = true) {
-  console.log('Deselecting', hit.object.name)
+function deselect(selInfo: SelectionInfo, alsoRemove = true) {
+  // console.log('Deselecting', selInfo.object.name)
   if (alsoRemove) {
     // Remove the matching object from the selection
-    let toRemove = selected.value.findIndex((m) => m.object.name === hit.object.name);
+    let toRemove = selected.value.findIndex((m) => m.getKey() === selInfo.getKey());
     selected.value.splice(toRemove, 1);
   }
-  if (hit.object.material.__prevBaseColorFactor) {
-    hit.object.material.color.r = hit.object.material.__prevBaseColorFactor[0]
-    hit.object.material.color.g = hit.object.material.__prevBaseColorFactor[1]
-    hit.object.material.color.b = hit.object.material.__prevBaseColorFactor[2]
-    delete hit.object.material.__prevBaseColorFactor;
-  }
+  highlightUndo(selInfo);
 }
 
 function deselectAll(alsoRemove = true) {
@@ -249,11 +286,12 @@ function updateBoundingBox() {
   if (selected.value.length > 0) {
     bb = new Box3();
     for (let hit of selected.value) {
-      bb.expandByObject(hit.object);
+      bb.union(hit.getBox())
     }
-    bb.applyMatrix4(new Matrix4().makeTranslation(props.viewer?.scene.getTarget()));
   } else {
-    bb = SceneMgr.getBoundingBox(sceneDocument.value);
+    let boundingBox = SceneMgr.getBoundingBox(sceneDocument.value);
+    if (!boundingBox) return; // No models. Should not happen.
+    bb = boundingBox
   }
   // Define each edge of the bounding box, to draw a line for each axis
   let corners = [
@@ -293,6 +331,8 @@ function updateBoundingBox() {
     }
     let from = new Vector3(...corners[edge[0]]);
     let to = new Vector3(...corners[edge[1]]);
+    let length = to.clone().sub(from).length();
+    if (length < 0.05) continue; // Skip very small edges (e.g. a single point)
     let color = [AxesColors.x, AxesColors.y, AxesColors.z][edgeI][1]; // Secondary colors
     let lineCacheKey = JSON.stringify([from, to]);
     let matchingLine = boundingBoxLines[lineCacheKey];
@@ -300,7 +340,7 @@ function updateBoundingBox() {
       boundingBoxLinesToRemove = boundingBoxLinesToRemove.filter((l) => l !== lineCacheKey);
     } else {
       let newLineId = props.viewer?.addLine3D(from, to,
-          to.clone().sub(from).length().toFixed(1) + "mm", {
+          length.toFixed(1) + "mm", {
             "stroke": "rgb(" + color.join(',') + ")",
             "stroke-width": "2"
           });
@@ -337,7 +377,7 @@ function updateDistances() {
   let distanceLinesToRemove = Object.keys(distanceLines);
 
   function ensureLine(from: Vector3, to: Vector3, text: string, color: string) {
-    console.log('ensureLine', from, to, text, color)
+    // console.log('ensureLine', from, to, text, color)
     let lineCacheKey = JSON.stringify([from, to]);
     let matchingLine = distanceLines[lineCacheKey];
     if (matchingLine) {
@@ -352,9 +392,7 @@ function updateDistances() {
   }
 
   // Add lines (if not already added)
-  let objA = selected.value[0].object;
-  let objB = selected.value[1].object;
-  let {min, center, max} = distances(objA, objB, props.viewer?.scene);
+  let {min, center, max} = distances(selected.value[0], selected.value[1], props.viewer?.scene);
   ensureLine(max[0], max[1], max[1].distanceTo(max[0]).toFixed(1) + "mm", "orange");
   ensureLine(center[0], center[1], center[1].distanceTo(center[0]).toFixed(1) + "mm", "green");
   ensureLine(min[0], min[1], min[1].distanceTo(min[0]).toFixed(1) + "mm", "cyan");
@@ -444,7 +482,7 @@ window.addEventListener('keydown', (event) => {
 
 .select-parent .v-btn {
   position: relative;
-  top: -42px;
+  top: -20px;
 }
 
 .select-only {

frontend/tools/Tools.vue

@@ -16,11 +16,11 @@ import {OrthographicCamera} from "three/src/cameras/OrthographicCamera.js";
 import {mdiClose, mdiCrosshairsGps, mdiDownload, mdiGithub, mdiLicense, mdiProjector} from '@mdi/js'
 import SvgIcon from '@jamescoyle/vue-icon';
 import type {ModelViewerElement} from '@google/model-viewer';
-import type {Intersection} from "three";
 import type {MObject3D} from "./Selection.vue";
 import Loading from "../misc/Loading.vue";
 import type ModelViewerWrapper from "../viewer/ModelViewerWrapper.vue";
 import {defineAsyncComponent, type Ref, ref} from "vue";
+import type {SelectionInfo} from "./selection";
 
 const SelectionComponent = defineAsyncComponent({
   loader: () => import("./Selection.vue"),
@@ -39,10 +39,10 @@ const LicensesDialogContent = defineAsyncComponent({
 let props = defineProps<{ viewer: InstanceType<typeof ModelViewerWrapper> | null }>();
 const emit = defineEmits<{ findModel: [string] }>()
 
-let selection: Ref<Array<Intersection<MObject3D>>> = ref([]);
-let selectionFaceCount = () => selection.value.filter((s) => s.object.type == "Mesh" || s.object.type == "SkinnedMesh").length
-let selectionEdgeCount = () => selection.value.filter((s) => s.object.type == "Line").length
-let selectionVertexCount = () => selection.value.filter((s) => s.object.type == "Points").length
+let selection: Ref<Array<SelectionInfo>> = ref([]);
+let selectionFaceCount = () => selection.value.filter((s) => s.kind == 'face').length
+let selectionEdgeCount = () => selection.value.filter((s) => s.kind == 'edge').length
+let selectionVertexCount = () => selection.value.filter((s) => s.kind == "vertex").length
 
 function syncOrthoCamera(force: boolean) {
   let scene = props.viewer?.scene;
@@ -50,12 +50,14 @@ function syncOrthoCamera(force: boolean) {
   let perspectiveCam: PerspectiveCamera = (scene as any).__perspectiveCamera;
   if (force || perspectiveCam && scene.camera != perspectiveCam) {
     // Get zoom level from perspective camera
-    let dist = scene.getTarget().distanceToSquared(perspectiveCam.position);
-    let w = scene.aspect * dist ** 1.1 / 4000;
-    let h = dist ** 1.1 / 4000;
+    let lookAtCenter = scene.getTarget().clone().add(scene.target.position);
+    let perspectiveWidthAtCenter =
+        2 * Math.tan(perspectiveCam.fov * Math.PI / 180 / 2) * perspectiveCam.position.distanceTo(lookAtCenter);
+    let w = perspectiveWidthAtCenter;
+    let h = perspectiveWidthAtCenter / scene.aspect;
     (scene as any).camera = new OrthographicCamera(-w, w, h, -h, perspectiveCam.near, perspectiveCam.far);
     scene.camera.position.copy(perspectiveCam.position);
-    scene.camera.lookAt(scene.getTarget().clone().add(scene.target.position));
+    scene.camera.lookAt(lookAtCenter);
     if (force) scene.queueRender() // Force rerender of model-viewer
     requestAnimationFrame(() => syncOrthoCamera(false));
   }
@@ -79,7 +81,7 @@ function toggleProjection() {
   toggleProjectionText.value = wasPerspectiveCamera ? 'ORTHO' : 'PERSP';
   // The camera change may take a few frames to take effect, dispatch the event after a delay
   requestIdleCallback(() => props.viewer?.elem?.dispatchEvent(
-      new CustomEvent('camera-change', {detail: {source: 'none'}})))
+      new CustomEvent('camera-change', {detail: {source: 'none'}})), {timeout: 100})
 }
 
 async function centerCamera() {

frontend/tools/selection.ts

@@ -0,0 +1,151 @@
+// Model management from the graphics side
+
+import type {MObject3D} from "./Selection.vue";
+import type {Intersection} from "three";
+import {Box3} from "three";
+
+/** Information about a single item in the selection */
+export class SelectionInfo {
+    /** The object which was (partially) selected */
+    object: MObject3D
+    /** The type of the selection */
+    kind: 'face' | 'edge' | 'vertex'
+    /** Start and end indices of the primitives in the geometry */
+    indices: [number, number]
+
+    constructor(object: MObject3D, kind: 'face' | 'edge' | 'vertex', indices: [number, number]) {
+        this.object = object;
+        this.kind = kind;
+        this.indices = indices;
+    }
+
+    public getKey() {
+        return this.object.uuid + this.kind + this.indices[0].toFixed() + this.indices[1].toFixed();
+    }
+
+    public getBox(): Box3 {
+        let index = this.object.geometry.index || {getX: (i: number) => i};
+        let pos = this.object.geometry.getAttribute('position');
+        let min = [Infinity, Infinity, Infinity];
+        let max = [-Infinity, -Infinity, -Infinity];
+        for (let i = this.indices[0]; i < this.indices[1]; i++) {
+            let vertIndex = index!.getX(i);
+            let x = pos.getX(vertIndex);
+            let y = pos.getY(vertIndex);
+            let z = pos.getZ(vertIndex);
+            min[0] = Math.min(min[0], x);
+            min[1] = Math.min(min[1], y);
+            min[2] = Math.min(min[2], z);
+            max[0] = Math.max(max[0], x);
+            max[1] = Math.max(max[1], y);
+            max[2] = Math.max(max[2], z);
+        }
+        return new Box3().setFromArray([...min, ...max]);
+    }
+}
+
+export function hitToSelectionInfo(hit: Intersection<MObject3D>): SelectionInfo | null {
+    let kind = hit.object.type;
+    if (kind == 'Mesh' || kind == 'SkinnedMesh') {
+        let indices = hitFaceTriangleIndices(hit);
+        if (indices === null) return null;
+        return new SelectionInfo(hit.object, 'face', indices);
+    } else if (kind == 'Line' || kind == 'LineSegments') {
+        // Select raw lines, not the wide meshes representing them
+        // This is because the indices refer to the raw lines, not the wide meshes
+        // Furthermore, this allows better "fuzzy" raycasting logic
+        let indices = hitEdgePointIndices(hit);
+        if (indices === null) return null;
+        return new SelectionInfo(hit.object, 'edge', indices);
+    } else if (kind == 'Points') {
+        if (hit.index === undefined) return null;
+        return new SelectionInfo(hit.object, 'vertex', [hit.index, hit.index + 1]);
+    }
+    return null;
+}
+
+function hitFaceTriangleIndices(hit: Intersection<MObject3D>): [number, number] | null {
+    let faceTrianglesEnd = hit?.object?.geometry?.userData?.face_triangles_end;
+    if (hit.faceIndex === undefined) return null;
+    if (!faceTrianglesEnd) { // Fallback to selecting the whole imported mesh
+        //console.log("No face_triangles_end found, selecting the whole mesh");
+        return [0, (hit.object.geometry.index ?? hit.object.geometry.attributes.position).count];
+    } else { // Normal CAD model
+        let rawIndex = hit.faceIndex * 3; // Faces are triangles with 3 indices
+        for (let i = 0; i < faceTrianglesEnd.length; i++) {
+            let faceSwapIndex = faceTrianglesEnd[i]
+            if (rawIndex < faceSwapIndex) {
+                let start = i === 0 ? 0 : faceTrianglesEnd[i - 1];
+                return [start, faceTrianglesEnd[i]];
+            }
+        }
+    }
+    return null;
+}
+
+function hitEdgePointIndices(hit: Intersection<MObject3D>): [number, number] | null {
+    let edgePointsEnd = hit?.object?.geometry?.userData?.edge_points_end;
+    if (!edgePointsEnd || hit.index === undefined) return null;
+    let rawIndex = hit.index; // Faces are triangles with 3 indices
+    for (let i = 0; i < edgePointsEnd.length; i++) {
+        let edgeSwapIndex = edgePointsEnd[i]
+        if (rawIndex < edgeSwapIndex) {
+            let start = i === 0 ? 0 : edgePointsEnd[i - 1];
+            return [start, edgePointsEnd[i]];
+        }
+    }
+    return null;
+}
+
+function applyColor(selInfo: SelectionInfo, colorAttribute: any, color: [number, number, number, number]): [number, number, number, number] {
+    let index = selInfo.object.geometry.index
+    let prevColor: [number, number, number, number] | null = null;
+    if (colorAttribute !== undefined) {
+        for (let i = selInfo.indices[0]; i < selInfo.indices[1]; i++) {
+            let vertIndex = index!.getX(i);
+            if (prevColor === null) prevColor = [colorAttribute.getX(vertIndex), colorAttribute.getY(vertIndex), colorAttribute.getZ(vertIndex), colorAttribute.getW(vertIndex)];
+            colorAttribute.setXYZW(vertIndex, color[0], color[1], color[2], color[3]);
+        }
+        colorAttribute.needsUpdate = true;
+        if (selInfo.object.userData.niceLine !== undefined) {
+            // Need to update the color of the nice line as well
+            let indexAttribute = selInfo.object.geometry.index!!;
+            let allNewColors = [];
+            for (let i = 0; i < indexAttribute.count; i++) {
+                if (indexAttribute.getX(i) >= selInfo.indices[0] && indexAttribute.getX(i) < selInfo.indices[1]) {
+                    allNewColors.push(color[0], color[1], color[2]);
+                } else {
+                    allNewColors.push(colorAttribute.getX(indexAttribute.getX(i)), colorAttribute.getY(indexAttribute.getX(i)), colorAttribute.getZ(indexAttribute.getX(i)));
+                }
+            }
+            selInfo.object.userData.niceLine.geometry.setColors(allNewColors);
+            for (let attribute of Object.values(selInfo.object.userData.niceLine.geometry.attributes)) {
+                (attribute as any).needsUpdate = true;
+            }
+        }
+    } else { // Fallback to tinting the whole mesh for imported models
+        //console.log("No color attribute found, tinting the whole mesh")
+        let tmpPrevColor = selInfo.object.material.color;
+        prevColor = [tmpPrevColor.r, tmpPrevColor.g, tmpPrevColor.b, 1];
+        selInfo.object.material.color.setRGB(color[0], color[1], color[2]);
+        selInfo.object.material.needsUpdate = true;
+    }
+    return prevColor!;
+}
+
+export function highlight(selInfo: SelectionInfo): void {
+    // Update the color of all the triangles in the face
+    let geometry = selInfo.object.geometry;
+    let colorAttr = selInfo.object.geometry.getAttribute('color');
+    geometry.userData.savedColor = geometry.userData.savedColor || {};
+    geometry.userData.savedColor[selInfo.getKey()] = applyColor(selInfo, colorAttr, [1.0, 0.0, 0.0, 1.0]);
+}
+
+export function highlightUndo(selInfo: SelectionInfo): void {
+    // Update the color of all the triangles in the face
+    let geometry = selInfo.object.geometry;
+    let colorAttr = selInfo.object.geometry.getAttribute('color');
+    let savedColor = geometry.userData.savedColor[selInfo.getKey()];
+    applyColor(selInfo, colorAttr, savedColor);
+    delete geometry.userData.savedColor[selInfo.getKey()];
+}

frontend/viewer/ModelViewerWrapper.vue

@@ -1,19 +1,23 @@
-<script lang="ts">
-</script>
-
 <script setup lang="ts">
 import {settings} from "../misc/settings";
-import {onMounted, inject, type Ref} from "vue";
-import {$scene, $renderer} from "@google/model-viewer/lib/model-viewer-base";
-import Loading from "../misc/Loading.vue";
-import {ref, watch} from "vue";
+import {inject, onMounted, type Ref, ref, watch} from "vue";
+import {VList, VListItem} from "vuetify/lib/components/index.mjs";
+import {$renderer, $scene} from "@google/model-viewer/lib/model-viewer-base";
 import {ModelViewerElement} from '@google/model-viewer';
 import type {ModelScene} from "@google/model-viewer/lib/three-components/ModelScene";
 import {Hotspot} from "@google/model-viewer/lib/three-components/Hotspot";
 import type {Renderer} from "@google/model-viewer/lib/three-components/Renderer";
 import type {Vector3} from "three";
+import { computeBoundsTree, disposeBoundsTree, acceleratedRaycast } from 'three-mesh-bvh';
+import {BufferGeometry, Mesh} from "three";
 
 ModelViewerElement.modelCacheSize = 0; // Also needed to avoid tree shaking
+//@ts-ignore
+BufferGeometry.prototype.computeBoundsTree = computeBoundsTree;
+//@ts-ignore
+BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
+//@ts-ignore
+Mesh.prototype.raycast = acceleratedRaycast;
 
 const emit = defineEmits<{ load: [] }>()
 
@@ -76,7 +80,7 @@ function addLine3D(p1: Vector3, p2: Vector3, centerText?: string, lineAttrs: { [
     lineAttrs: lineAttrs
   };
   scene.value.queueRender() // Needed to update the hotspots
-  requestIdleCallback(() => onCameraChangeLine(id));
+  requestIdleCallback(() => onCameraChangeLine(id), {timeout: 100});
   return id;
 }
 
@@ -152,7 +156,13 @@ watch(disableTap, (value) => {
                 :ar="settings.arModes.length > 0" :ar-modes="settings.arModes" :skybox-image="settings.background"
                 :environment-image="settings.background">
     <slot></slot> <!-- Controls, annotations, etc. -->
-    <loading class="annotation initial-load-banner"></loading>
+    <div class="annotation initial-load-banner">
+      Trying to load models from...
+      <v-list v-for="src in settings.preload" :key="src">
+        <v-list-item>{{ src }}</v-list-item>
+      </v-list>
+      <!-- Too much idle CPU usage: <loading></loading> -->
+    </div>
   </model-viewer>
 
   <!-- The SVG overlay for fake 3D lines attached to the model -->
@@ -202,4 +212,15 @@ watch(disableTap, (value) => {
   height: 100dvh;
   pointer-events: none;
 }
+
+.initial-load-banner {
+  width: 300px;
+  margin: auto;
+  margin-top: 3em;
+  overflow: hidden;
+}
+
+.initial-load-banner .v-list-item {
+  overflow: hidden;
+}
 </style>

package.json

@@ -1,8 +1,9 @@
 {
   "name": "yet-another-cad-viewer",
-  "version": "0.1.0",
+  "version": "0.7.1",
   "description": "",
   "license": "MIT",
+  "private": true,
   "author": "Yeicor <4929005+Yeicor@users.noreply.github.com>",
   "type": "module",
   "scripts": {
@@ -15,20 +16,21 @@
   },
   "dependencies": {
     "@gltf-transform/core": "^3.10.0",
-    "@gltf-transform/functions": "^3.10.0",
+    "@gltf-transform/functions": "^3.10.1",
     "@google/model-viewer": "^3.4.0",
     "@jamescoyle/vue-icon": "^0.1.2",
     "@mdi/js": "^7.4.47",
     "@mdi/svg": "^7.4.47",
-    "three": "^0.160.1",
+    "three": "^0.162.0",
+    "three-mesh-bvh": "^0.7.3",
     "three-orientation-gizmo": "https://github.com/jrj2211/three-orientation-gizmo",
     "vue": "^3.4.21",
-    "vuetify": "^3.5.7"
+    "vuetify": "^3.5.11"
   },
   "devDependencies": {
-    "@tsconfig/node20": "^20.1.2",
-    "@types/node": "^20.11.24",
-    "@types/three": "^0.160.0",
+    "@tsconfig/node20": "^20.1.3",
+    "@types/node": "^20.11.30",
+    "@types/three": "^0.162.0",
     "@vitejs/plugin-vue": "^5.0.3",
     "@vitejs/plugin-vue-jsx": "^3.1.0",
     "@vue/tsconfig": "^0.5.1",
@@ -36,9 +38,9 @@
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-trio = ["trio (>=0.23)"]
+# This file is automatically @generated by Poetry 1.8.2 and should not be changed by hand.
 
 [[package]]
 name = "anytree"
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 astroid = ["astroid (>=1,<2)", "astroid (>=2,<4)"]
 test = ["astroid (>=1,<2)", "astroid (>=2,<4)", "pytest"]
 
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 typing-extensions = ">=4.6.0,<5"
 
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-    {file = "yarl-1.9.4-py3-none-any.whl", hash = "sha256:928cecb0ef9d5a7946eb6ff58417ad2fe9375762382f1bf5c55e61645f2c43ad"},
-    {file = "yarl-1.9.4.tar.gz", hash = "sha256:566db86717cf8080b99b58b083b773a908ae40f06681e87e589a976faf8246bf"},
-]
-
-[package.dependencies]
-idna = ">=2.0"
-multidict = ">=4.0"
-
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "b319fd1a01b16c61a1e5a3050a22e4898d8faea9ab85de6ae4bc82849b1a4025"
+content-hash = "567ef9c980c250ace7e380098b810250a36b92dd2e824b5b4f4851898a675e09"

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "yacv-server"
-version = "0.1.0"  # TODO: Update automatically by CI on release (also for package.json!)
+version = "0.7.1"
 description = "Yet Another CAD Viewer (server)"
 authors = ["Yeicor <4929005+Yeicor@users.noreply.github.com>"]
 license = "MIT"
@@ -15,12 +15,6 @@ python = "^3.9"
 
 # CAD
 build123d = "^0.4.0"
-ocp-tessellate = "^2.0.6"
-
-# Web
-aiohttp = "^3.9.3"
-aiohttp-cors = "^0.7.0"
-aiohttp-devtools = "^1.1.2"
 
 # Misc
 pygltflib = "^1.16.2"

vite.config.ts

@@ -3,9 +3,12 @@ import {fileURLToPath, URL} from 'node:url'
 import {defineConfig} from 'vite'
 import vue from '@vitejs/plugin-vue'
 import vueJsx from '@vitejs/plugin-vue-jsx'
+import {name, version} from './package.json'
+import {execSync} from 'child_process'
 
 // https://vitejs.dev/config/
 export default defineConfig({
+    base: "",
     plugins: [
         vue({
             template: {
@@ -25,5 +28,12 @@ export default defineConfig({
     build: {
         assetsDir: '.',
         cssCodeSplit: false, // Small enough to inline
+        chunkSizeWarningLimit: 550, // Three.js is huge
+    },
+    define: {
+        __APP_NAME__: JSON.stringify(name),
+        __APP_VERSION__: JSON.stringify(version),
+        __APP_GIT_SHA__: JSON.stringify(execSync('git rev-parse HEAD').toString().trim()),
+        __APP_GIT_DIRTY__: JSON.stringify(execSync('git diff --quiet || echo dirty').toString().trim()),
     }
 })

yacv_server/__init__.py

@@ -1,42 +1,21 @@
-import logging
 import os
-import time
 
-from aiohttp import web
-from build123d import Vector
+from yacv_server.cad import image_to_gltf
+from yacv_server.yacv import YACV
 
-from server import Server
-
-server = Server()
+yacv = YACV()
 """The server instance. This is the main entry point to serve CAD objects and other data to the frontend."""
 
 if 'YACV_DISABLE_SERVER' not in os.environ:
     # Start a new server ASAP to let the polling client connect while still building CAD objects
     # This is a bit of a hack, but it is seamless to the user. This behavior can be disabled by setting
     # the environment variable YACV_DISABLE_SERVER to a non-empty value
-    server.start()
+    yacv.start()
 
 # Expose some nice aliases using the default server instance
-show = server.show
-show_object = show
-show_image = server.show_image
-show_all = server.show_cad_all
-
-
-def _get_app() -> web.Application:
-    """Required by aiohttp-devtools"""
-    logging.basicConfig(level=logging.DEBUG)
-    from logo import build_logo, ASSETS_DIR
-    logo, img_location, img_path = build_logo()
-    server.show_cad(logo, 'logo')
-    server.show_cad(img_location, 'location')
-    server.show_image(img_path, img_location, 20)
-    server.show_gltf(open(os.path.join(ASSETS_DIR, 'fox.glb'), 'rb').read(), 'fox')
-    return server.app
-
-
-if __name__ == '__main__':
-    # Publish the logo to the server (reusing code from the aiohttp-devtools)
-    _get_app()
-    # Keep the server running for testing
-    time.sleep(60)
+show = yacv.show
+show_all = yacv.show_cad_all
+image_to_gltf = image_to_gltf
+export_all = yacv.export_all
+remove = yacv.remove
+clear = yacv.clear

yacv_server/cad.py

@@ -7,12 +7,13 @@ from typing import Optional, Union, List, Tuple
 from OCP.TopLoc import TopLoc_Location
 from OCP.TopoDS import TopoDS_Shape
 
-from gltf import GLTFMgr
+from yacv_server.gltf import GLTFMgr
 
-CADLike = Union[TopoDS_Shape, TopLoc_Location]  # Faces, Edges, Vertices and Locations for now
+CADCoreLike = Union[TopoDS_Shape, TopLoc_Location]  # Faces, Edges, Vertices and Locations for now
+CADLike = Union[CADCoreLike, any]  # build123d and cadquery types
 
 
-def get_shape(obj: any, error: bool = True) -> Optional[CADLike]:
+def get_shape(obj: CADLike, error: bool = True) -> Optional[CADCoreLike]:
     """ Get the shape of a CAD-like object """
 
     # Try to grab a shape if a different type of object was passed
@@ -45,7 +46,7 @@ def get_shape(obj: any, error: bool = True) -> Optional[CADLike]:
         return None
 
 
-def grab_all_cad() -> List[Tuple[str, CADLike]]:
+def grab_all_cad() -> List[Tuple[str, CADCoreLike]]:
     """ Grab all shapes by inspecting the stack """
     import inspect
     stack = inspect.stack()
@@ -58,9 +59,10 @@ def grab_all_cad() -> List[Tuple[str, CADLike]]:
     return shapes
 
 
-def image_to_gltf(source: str | bytes, center: any, ppmm: int, name: Optional[str] = None,
-                  save_mime: str = 'image/jpeg') -> Tuple[bytes, str]:
-    """Convert an image to a GLTF CAD object, indicating the center location and pixels per millimeter."""
+def image_to_gltf(source: str | bytes, center: any, width: Optional[float] = None, height: Optional[float] = None,
+                  name: Optional[str] = None, save_mime: str = 'image/jpeg', power_of_two: bool = True) \
+        -> Tuple[bytes, str]:
+    """Convert an image to a GLTF CAD object."""
     from PIL import Image
     import io
     import os
@@ -100,16 +102,32 @@ def image_to_gltf(source: str | bytes, center: any, ppmm: int, name: Optional[st
     # Load the image to a byte buffer
     img = Image.open(source)
     img_buf = io.BytesIO()
+
+    # Use the original dimensions for scaling the model
+    if width is None and height is None:
+        raise ValueError('At least one of width or height must be specified')  # Fallback to pixels == mm?
+    elif width is None:
+        width = img.width / img.height * height
+    elif height is None:
+        height = height or img.height / img.width * width  # Apply default aspect ratio if unspecified
+
+    # Resize the image to a power of two if requested (recommended for GLTF)
+    if power_of_two:
+        new_width = 2 ** (img.width - 1).bit_length()
+        new_height = 2 ** (img.height - 1).bit_length()
+        img = img.resize((new_width, new_height))
+
+    # Save the image to a buffer
     img.save(img_buf, format=format)
     img_buf = img_buf.getvalue()
 
     # Build the gltf
     mgr = GLTFMgr(image=(img_buf, save_mime))
     mgr.add_face([
-        vert(plane.origin - plane.x_dir * img.width / (2 * ppmm) - plane.y_dir * img.height / (2 * ppmm)),
-        vert(plane.origin + plane.x_dir * img.width / (2 * ppmm) - plane.y_dir * img.height / (2 * ppmm)),
-        vert(plane.origin + plane.x_dir * img.width / (2 * ppmm) + plane.y_dir * img.height / (2 * ppmm)),
-        vert(plane.origin - plane.x_dir * img.width / (2 * ppmm) + plane.y_dir * img.height / (2 * ppmm)),
+        vert(plane.origin - plane.x_dir * width / 2 - plane.y_dir * height / 2),
+        vert(plane.origin + plane.x_dir * width / 2 - plane.y_dir * height / 2),
+        vert(plane.origin + plane.x_dir * width / 2 + plane.y_dir * height / 2),
+        vert(plane.origin - plane.x_dir * width / 2 + plane.y_dir * height / 2),
     ], [
         (0, 2, 1),
         (0, 3, 2),
@@ -118,7 +136,7 @@ def image_to_gltf(source: str | bytes, center: any, ppmm: int, name: Optional[st
         (1, 0),
         (1, 1),
         (0, 1),
-    ])
+    ], (1, 1, 1, 1))
 
     # Return the GLTF binary blob and the suggested name of the image
-    return b''.join(mgr.gltf.save_to_bytes()), name
+    return b''.join(mgr.build().save_to_bytes()), name

yacv_server/gltf.py

@@ -12,43 +12,95 @@ _checkerboard_image_bytes = base64.decodebytes(
 class GLTFMgr:
     """A utility class to build our GLTF2 objects easily and incrementally"""
 
-    def __init__(self, image: Tuple[bytes, str] = (_checkerboard_image_bytes, 'image/png')):
+    gltf: GLTF2
+
+    # Intermediate data to be filled by the add_* methods and merged into the GLTF object
+    # - Face data
+    face_indices: List[int]  # 3 indices per triangle
+    face_positions: List[float]  # x, y, z
+    face_tex_coords: List[float]  # u, v
+    face_colors: List[float]  # r, g, b, a
+    image: Optional[Tuple[bytes, str]]  # image/png
+    # - Edge data
+    edge_indices: List[int]  # 2 indices per edge
+    edge_positions: List[float]  # x, y, z
+    edge_colors: List[float]  # r, g, b, a
+    # - Vertex data
+    vertex_indices: List[int]  # 1 index per vertex
+    vertex_positions: List[float]  # x, y, z
+    vertex_colors: List[float]  # r, g, b, a
+
+    def __init__(self, image: Optional[Tuple[bytes, str]] = (_checkerboard_image_bytes, 'image/png')):
         self.gltf = GLTF2(
             asset=Asset(generator=f"yacv_server@{importlib.metadata.version('yacv_server')}"),
             scene=0,
             scenes=[Scene(nodes=[0])],
-            nodes=[Node(mesh=0)],
-            meshes=[Mesh(primitives=[])],
-            accessors=[],
-            bufferViews=[BufferView(buffer=0, byteLength=len(image[0]), byteOffset=0)],
-            buffers=[Buffer(byteLength=len(image[0]))],
-            samplers=[Sampler(magFilter=NEAREST)],
-            textures=[Texture(source=0, sampler=0)],
-            images=[Image(bufferView=0, mimeType=image[1])],
+            nodes=[Node(mesh=0)],  # TODO: Server-side detection of shallow copies --> nodes
+            meshes=[Mesh(primitives=[
+                Primitive(indices=-1, attributes=Attributes(), mode=TRIANGLES, material=0,
+                          extras={"face_triangles_end": []}),
+                Primitive(indices=-1, attributes=Attributes(), mode=LINES, material=0,
+                          extras={"edge_points_end": []}),
+                Primitive(indices=-1, attributes=Attributes(), mode=POINTS, material=0),
+            ])],
+            materials=[Material(pbrMetallicRoughness=PbrMetallicRoughness(metallicFactor=0.1, roughnessFactor=1.0),
+                                alphaCutoff=None)],
         )
-        self.gltf.set_binary_blob(image[0])
+        self.face_indices = []
+        self.face_positions = []
+        self.face_tex_coords = []
+        self.face_colors = []
+        self.image = image
+        self.edge_indices = []
+        self.edge_positions = []
+        self.edge_colors = []
+        self.vertex_indices = []
+        self.vertex_positions = []
+        self.vertex_colors = []
 
-    def add_face(self, vertices_raw: List[Tuple[float, float, float]], indices_raw: List[Tuple[int, int, int]],
-                 tex_coord_raw: List[Tuple[float, float]]):
-        """Add a face to the GLTF as a new primitive of the unique mesh"""
-        vertices = np.array([[v[0], v[1], v[2]] for v in vertices_raw], dtype=np.float32)
-        indices = np.array([[i[0], i[1], i[2]] for i in indices_raw], dtype=np.uint32)
-        tex_coord = np.array([[t[0], t[1]] for t in tex_coord_raw], dtype=np.float32)
-        self._add_any(vertices, indices, tex_coord, mode=TRIANGLES, material="face")
+    @property
+    def _faces_primitive(self) -> Primitive:
+        return [p for p in self.gltf.meshes[0].primitives if p.mode == TRIANGLES][0]
 
-    def add_edge(self, vertices_raw: List[Tuple[float, float, float]], mat: str = None):
-        """Add an edge to the GLTF as a new primitive of the unique mesh"""
-        vertices = np.array([[v[0], v[1], v[2]] for v in vertices_raw], dtype=np.float32)
-        indices = np.array(list(map(lambda i: [i, i + 1], range(len(vertices) - 1))), dtype=np.uint32)
-        tex_coord = np.array([])
-        self._add_any(vertices, indices, tex_coord, mode=LINE_STRIP, material=mat or "edge")
+    @property
+    def _edges_primitive(self) -> Primitive:
+        return [p for p in self.gltf.meshes[0].primitives if p.mode == LINES][0]
 
-    def add_vertex(self, vertex: Tuple[float, float, float]):
-        """Add a vertex to the GLTF as a new primitive of the unique mesh"""
-        vertices = np.array([[vertex[0], vertex[1], vertex[2]]])
-        indices = np.array([[0]], dtype=np.uint32)
-        tex_coord = np.array([], dtype=np.float32)
-        self._add_any(vertices, indices, tex_coord, mode=POINTS, material="vertex")
+    @property
+    def _vertices_primitive(self) -> Primitive:
+        return [p for p in self.gltf.meshes[0].primitives if p.mode == POINTS][0]
+
+    def add_face(self, vertices_raw: List[Vector], indices_raw: List[Tuple[int, int, int]],
+                 tex_coord_raw: List[Tuple[float, float]],
+                 color: Tuple[float, float, float, float] = (1.0, 0.75, 0.0, 1.0)):
+        """Add a face to the GLTF mesh"""
+        # assert len(vertices_raw) == len(tex_coord_raw), f"Vertices and texture coordinates have different lengths"
+        # assert min([i for t in indices_raw for i in t]) == 0, f"Face indices start at {min(indices_raw)}"
+        # assert max([e for t in indices_raw for e in t]) < len(vertices_raw), f"Indices have non-existing vertices"
+        base_index = len(self.face_positions) // 3  # All the new indices reference the new vertices
+        self.face_indices.extend([base_index + i for t in indices_raw for i in t])
+        self.face_positions.extend([v for t in vertices_raw for v in t])
+        self.face_tex_coords.extend([c for t in tex_coord_raw for c in t])
+        self.face_colors.extend([col for _ in range(len(vertices_raw)) for col in color])
+        self._faces_primitive.extras["face_triangles_end"].append(len(self.face_indices))
+
+    def add_edge(self, vertices_raw: List[Tuple[Tuple[float, float, float], Tuple[float, float, float]]],
+                 color: Tuple[float, float, float, float] = (0.1, 0.1, 1.0, 1.0)):
+        """Add an edge to the GLTF mesh"""
+        vertices_flat = [v for t in vertices_raw for v in t]  # Line from 0 to 1, 2 to 3, 4 to 5, etc.
+        base_index = len(self.edge_positions) // 3
+        self.edge_indices.extend([base_index + i for i in range(len(vertices_flat))])
+        self.edge_positions.extend([v for t in vertices_flat for v in t])
+        self.edge_colors.extend([col for _ in range(len(vertices_flat)) for col in color])
+        self._edges_primitive.extras["edge_points_end"].append(len(self.edge_indices))
+
+    def add_vertex(self, vertex: Tuple[float, float, float],
+                   color: Tuple[float, float, float, float] = (0.1, 0.1, 0.1, 1.0)):
+        """Add a vertex to the GLTF mesh"""
+        base_index = len(self.vertex_positions) // 3
+        self.vertex_indices.append(base_index)
+        self.vertex_positions.extend(vertex)
+        self.vertex_colors.extend(color)
 
     def add_location(self, loc: Location):
         """Add a location to the GLTF as a new primitive of the unique mesh"""
@@ -59,119 +111,91 @@ class GLTFMgr:
 
         # Add 1 origin vertex and 3 edges with custom colors to identify the X, Y and Z axis
         self.add_vertex(vert(pl.origin))
-        self.add_edge([vert(pl.origin), vert(pl.origin + pl.x_dir)], mat="locX")
-        self.add_edge([vert(pl.origin), vert(pl.origin + pl.y_dir)], mat="locY")
-        self.add_edge([vert(pl.origin), vert(pl.origin + pl.z_dir)], mat="locZ")
+        self.add_edge([(vert(pl.origin), vert(pl.origin + pl.x_dir))], color=(0.97, 0.24, 0.24, 1))
+        self.add_edge([(vert(pl.origin), vert(pl.origin + pl.y_dir))], color=(0.42, 0.8, 0.15, 1))
+        self.add_edge([(vert(pl.origin), vert(pl.origin + pl.z_dir))], color=(0.09, 0.55, 0.94, 1))
 
-    def add_material(self, kind: str) -> int:
-        """It is important to use a different material for each primitive to be able to change them at runtime"""
-        new_material: Material
-        if kind == "face":
-            new_material = Material(name="face", alphaCutoff=None, pbrMetallicRoughness=PbrMetallicRoughness(
-                baseColorTexture=TextureInfo(index=0), baseColorFactor=[1, 1, 0.5, 1]), doubleSided=True)
-        elif kind == "edge":
-            new_material = Material(name="edge", alphaCutoff=None, pbrMetallicRoughness=PbrMetallicRoughness(
-                baseColorFactor=[0, 0, 0.5, 1]))
-        elif kind == "vertex":
-            new_material = Material(name="vertex", alphaCutoff=None, pbrMetallicRoughness=PbrMetallicRoughness(
-                baseColorFactor=[0, 0.3, 0.3, 1]))
-        elif kind == "locX":
-            new_material = Material(name="locX", alphaCutoff=None, pbrMetallicRoughness=PbrMetallicRoughness(
-                baseColorFactor=[0.97, 0.24, 0.24, 1]))
-        elif kind == "locY":
-            new_material = Material(name="locY", alphaCutoff=None, pbrMetallicRoughness=PbrMetallicRoughness(
-                baseColorFactor=[0.42, 0.8, 0.15, 1]))
-        elif kind == "locZ":
-            new_material = Material(name="locZ", alphaCutoff=None, pbrMetallicRoughness=PbrMetallicRoughness(
-                baseColorFactor=[0.09, 0.55, 0.94, 1]))
+    def build(self) -> GLTF2:
+        """Merge the intermediate data into the GLTF object and return it"""
+        buffers_list: List[Tuple[Accessor, BufferView, bytes]] = []
+
+        if len(self.face_indices) > 0:
+            self._faces_primitive.indices = len(buffers_list)
+            buffers_list.append(_gen_buffer_metadata(self.face_indices, 1))
+            self._faces_primitive.attributes.POSITION = len(buffers_list)
+            buffers_list.append(_gen_buffer_metadata(self.face_positions, 3))
+            self._faces_primitive.attributes.TEXCOORD_0 = len(buffers_list)
+            buffers_list.append(_gen_buffer_metadata(self.face_tex_coords, 2))
+            self._faces_primitive.attributes.COLOR_0 = len(buffers_list)
+            buffers_list.append(_gen_buffer_metadata(self.face_colors, 4))
         else:
-            raise ValueError(f"Unknown material kind {kind}")
-        self.gltf.materials.append(new_material)
-        return len(self.gltf.materials) - 1
+            self.image = None  # Unused image
+            self.gltf.meshes[0].primitives = list(  # Remove unused faces primitive
+                filter(lambda p: p.mode != TRIANGLES, self.gltf.meshes[0].primitives))
 
-    def _add_any(self, vertices: np.ndarray, indices: np.ndarray, tex_coord: np.ndarray, mode: int = TRIANGLES,
-                 material: str = "face"):
-        assert vertices.ndim == 2
-        assert vertices.shape[1] == 3
-        vertices = vertices.astype(np.float32)
-        vertices_blob = vertices.tobytes()
+        edges_and_vertices_mat = 0
+        if self.image is not None and (len(self.edge_indices) > 0 or len(self.vertex_indices) > 0):
+            # Create a material without texture for edges and vertices
+            edges_and_vertices_mat = len(self.gltf.materials)
+            new_mat = copy.deepcopy(self.gltf.materials[0])
+            new_mat.pbrMetallicRoughness.baseColorTexture = None
+            self.gltf.materials.append(new_mat)
 
-        assert indices.ndim == 2
-        assert indices.shape[1] == 3 and mode == TRIANGLES or indices.shape[1] == 2 and mode == LINE_STRIP or \
-               indices.shape[1] == 1 and mode == POINTS
-        indices = indices.astype(np.uint32)
-        indices_blob = indices.flatten().tobytes()
+        # Treat edges and vertices the same way
+        for (indices, positions, colors, primitive, kind) in [
+            (self.edge_indices, self.edge_positions, self.edge_colors, self._edges_primitive, LINES),
+            (self.vertex_indices, self.vertex_positions, self.vertex_colors, self._vertices_primitive, POINTS)
+        ]:
+            if len(indices) > 0:
+                primitive.material = edges_and_vertices_mat
+                primitive.indices = len(buffers_list)
+                buffers_list.append(_gen_buffer_metadata(indices, 1))
+                primitive.attributes.POSITION = len(buffers_list)
+                buffers_list.append(_gen_buffer_metadata(positions, 3))
+                primitive.attributes.COLOR_0 = len(buffers_list)
+                buffers_list.append(_gen_buffer_metadata(colors, 4))
+            else:
+                self.gltf.meshes[0].primitives = list(  # Remove unused edges primitive
+                    filter(lambda p: p.mode != kind, self.gltf.meshes[0].primitives))
 
-        # Check that all vertices are referenced by the indices
-        assert indices.max() == len(vertices) - 1, f"{indices.max()} != {len(vertices) - 1}"
-        assert indices.min() == 0
-        assert np.unique(indices.flatten()).size == len(vertices)
+        if self.image is not None:  # Add texture last as it creates a fake accessor that is not added!
+            self.gltf.images = [Image(bufferView=len(buffers_list), mimeType=self.image[1])]
+            self.gltf.textures = [Texture(source=0, sampler=0)]
+            self.gltf.samplers = [Sampler(magFilter=NEAREST)]
+            self.gltf.materials[0].pbrMetallicRoughness.baseColorTexture = TextureInfo(index=0)
+            buffers_list.append((Accessor(), BufferView(), self.image[0]))
 
-        assert len(tex_coord) == 0 or tex_coord.ndim == 2
-        assert len(tex_coord) == 0 or tex_coord.shape[1] == 2
-        tex_coord = tex_coord.astype(np.float32)
-        tex_coord_blob = tex_coord.tobytes()
-
-        accessor_base = len(self.gltf.accessors)
-        self.gltf.meshes[0].primitives.append(
-            Primitive(
-                attributes=Attributes(POSITION=accessor_base + 1, TEXCOORD_0=accessor_base + 2)
-                if len(tex_coord) > 0 else Attributes(POSITION=accessor_base + 1),
-                indices=accessor_base,
-                mode=mode,
-                material=self.add_material(material),
-            )
-        )
-
-        buffer_view_base = len(self.gltf.bufferViews)
-        self.gltf.accessors.extend([it for it in [
-            Accessor(
-                bufferView=buffer_view_base,
-                componentType=UNSIGNED_INT,
-                count=indices.size,
-                type=SCALAR,
-                max=[int(indices.max())],
-                min=[int(indices.min())],
-            ),
-            Accessor(
-                bufferView=buffer_view_base + 1,
-                componentType=FLOAT,
-                count=len(vertices),
-                type=VEC3,
-                max=vertices.max(axis=0).tolist(),
-                min=vertices.min(axis=0).tolist(),
-            ),
-            Accessor(
-                bufferView=buffer_view_base + 2,
-                componentType=FLOAT,
-                count=len(tex_coord),
-                type=VEC2,
-                max=tex_coord.max(axis=0).tolist(),
-                min=tex_coord.min(axis=0).tolist(),
-            ) if len(tex_coord) > 0 else None
-        ] if it is not None])
-
-        prev_binary_blob = self.gltf.binary_blob()
+        # Once all the data is ready, we can concatenate the buffers updating the accessors and views
+        prev_binary_blob = self.gltf.binary_blob() or b''
         byte_offset_base = len(prev_binary_blob)
-        self.gltf.bufferViews.extend([bv for bv in [
-            BufferView(
-                buffer=0,
-                byteOffset=byte_offset_base,
-                byteLength=len(indices_blob),
-                target=ELEMENT_ARRAY_BUFFER,
-            ),
-            BufferView(
-                buffer=0,
-                byteOffset=byte_offset_base + len(indices_blob),
-                byteLength=len(vertices_blob),
-                target=ARRAY_BUFFER,
-            ),
-            BufferView(
-                buffer=0,
-                byteOffset=byte_offset_base + len(indices_blob) + len(vertices_blob),
-                byteLength=len(tex_coord_blob),
-                target=ARRAY_BUFFER,
-            )
-        ] if bv.byteLength > 0])
+        for accessor, bufferView, blob in buffers_list:
 
-        self.gltf.set_binary_blob(prev_binary_blob + indices_blob + vertices_blob + tex_coord_blob)
+            if accessor.componentType is not None:  # Remove accessor of texture
+                buffer_view_base = len(self.gltf.bufferViews)
+                accessor.bufferView = buffer_view_base
+                self.gltf.accessors.append(accessor)
+
+            bufferView.buffer = 0
+            bufferView.byteOffset = byte_offset_base
+            bufferView.byteLength = len(blob)
+            self.gltf.bufferViews.append(bufferView)
+
+            byte_offset_base += len(blob)
+            prev_binary_blob += blob
+
+        self.gltf.buffers.append(Buffer(byteLength=byte_offset_base))
+        self.gltf.set_binary_blob(prev_binary_blob)
+
+        return self.gltf
+
+
+def _gen_buffer_metadata(data: List[any], chunk: int) -> Tuple[Accessor, BufferView, bytes]:
+    return Accessor(
+        componentType={1: UNSIGNED_INT, 2: FLOAT, 3: FLOAT, 4: FLOAT}[chunk],
+        count=len(data) // chunk,
+        type={1: SCALAR, 2: VEC2, 3: VEC3, 4: VEC4}[chunk],
+        max=[max(data[i::chunk]) for i in range(chunk)],
+        min=[min(data[i::chunk]) for i in range(chunk)],
+    ), BufferView(
+        target={1: ELEMENT_ARRAY_BUFFER, 2: ARRAY_BUFFER, 3: ARRAY_BUFFER, 4: ARRAY_BUFFER}[chunk],
+    ), np.array(data, dtype={1: np.uint32, 2: np.float32, 3: np.float32, 4: np.float32}[chunk]).tobytes()

yacv_server/logo.py

@@ -1,14 +1,12 @@
-import asyncio
-import logging
 import os
-from typing import Tuple
+from typing import Union, Dict
 
 from build123d import *
 
 ASSETS_DIR = os.getenv('ASSETS_DIR', os.path.join(os.path.dirname(__file__), '..', 'assets'))
 
 
-def build_logo(text: bool = True) -> Tuple[Part, Location, str]:
+def build_logo(text: bool = True) -> Dict[str, Union[Part, Location, str]]:
     """Builds the CAD part of the logo"""
     with BuildPart(Plane.XY.offset(50)) as logo_obj:
         Box(22, 40, 30)
@@ -24,35 +22,39 @@ def build_logo(text: bool = True) -> Tuple[Part, Location, str]:
     logo_img_location = logo_obj.faces().group_by(Axis.X)[0].face().center_location  # Avoid overlapping:
     logo_img_location.position = Vector(logo_img_location.position.X - 4e-2, logo_img_location.position.Y,
                                         logo_img_location.position.Z)
+
     logo_img_path = os.path.join(ASSETS_DIR, 'img.jpg')
-    return logo_obj.part, logo_img_location, logo_img_path
+    img_glb_bytes, img_name = image_to_gltf(logo_img_path, logo_img_location, height=18)
+
+    fox_glb_bytes = open(os.path.join(ASSETS_DIR, 'fox.glb'), 'rb').read()
+
+    return {'fox': fox_glb_bytes, 'logo': logo_obj, 'location': logo_img_location, img_name: img_glb_bytes}
 
 
 if __name__ == "__main__":
+    import logging
+
     logging.basicConfig(level=logging.DEBUG)
 
-    # Start an offline server to export the CAD part of the logo in a way compatible with the frontend
-    # If this is not set, the server will auto-start on import and show_* calls will provide live updates
-    os.environ['YACV_DISABLE_SERVER'] = '1'
-    from yacv_server import show, show_image
+    testing_server = os.getenv('TESTING_SERVER') is not None
+
+    if not testing_server:
+        # Start an offline server to export the CAD part of the logo in a way compatible with the frontend
+        # If this is not set, the server will auto-start on import and show_* calls will provide live updates
+        os.environ['YACV_DISABLE_SERVER'] = 'True'
+
+    from yacv_server import export_all, show, image_to_gltf
+
+    # Build the CAD part of the logo
+    logo = build_logo()
 
     # Add the CAD part of the logo to the server
-    logo, img_location, img_path = build_logo()
-    show(logo, 'base')
-    show(img_location, 'location')
-    show_image(img_path, img_location, 20)
+    show(*[obj for obj in logo.values()], names=[name for name in logo.keys()])
 
-
-    async def exporter():
-        # We need access to the actual server object for advanced features like exporting to file
-        from yacv_server import server
-        for name in server.shown_object_names():
-            print(f'Exporting {name} to GLB...')
-            with open(os.path.join(ASSETS_DIR, 'logo_build', f'{name}.glb'), 'wb') as f:
-                f.write(await server.export(name))
-
-
-    # Save the complete logo to multiple GLB files (async required)
-    asyncio.run(exporter())
-
-    print('Logo saved!')
+    if testing_server:
+        # remove('location')  # Test removing a part
+        pass
+    else:
+        # Save the complete logo to multiple GLB files
+        export_all(os.path.join(ASSETS_DIR, 'logo_build'))
+        print('Logo saved!')

yacv_server/myhttp.py

@@ -0,0 +1,134 @@
+import io
+import os
+import urllib.parse
+from http import HTTPStatus
+from http.server import SimpleHTTPRequestHandler
+
+from yacv_server.mylogger import logger
+
+# Find the frontend folder (optional, but recommended)
+FILE_DIR = os.path.dirname(__file__)
+FRONTEND_BASE_PATH = os.getenv('FRONTEND_BASE_PATH', os.path.join(FILE_DIR, 'frontend'))
+if not os.path.exists(FRONTEND_BASE_PATH):
+    if os.path.exists(os.path.join(FILE_DIR, '..', 'dist')):  # Fallback to dev build
+        FRONTEND_BASE_PATH = os.path.join(FILE_DIR, '..', 'dist')
+    else:
+        logger.warning('Frontend not found at %s', FRONTEND_BASE_PATH)
+        FRONTEND_BASE_PATH = None
+
+# Define the API paths (also available at the root path for simplicity)
+UPDATES_API_PATH = '/api/updates'
+OBJECTS_API_PATH = '/api/object'  # /{name}
+
+
+class HTTPHandler(SimpleHTTPRequestHandler):
+    yacv: 'yacv.YACV'
+
+    def __init__(self, *args, yacv: 'yacv.YACV', **kwargs):
+        self.yacv = yacv
+        super().__init__(*args, **kwargs, directory=FRONTEND_BASE_PATH)
+
+    def log_message(self, fmt, *args):
+        logger.debug(fmt, *args)
+
+    def end_headers(self):
+        # Add CORS headers to the response
+        self.send_header('Access-Control-Allow-Origin', '*')
+        self.send_header('Access-Control-Allow-Methods', 'GET, POST, OPTIONS')
+        super().end_headers()
+
+    def translate_path(self, path: str) -> str:
+        """Translate a path to the local filesystem, adds some basic security checks"""
+        path = super().translate_path(path)
+        path = os.path.realpath(path)  # Avoid symlink hacks
+        if self.directory:  # Ensure proper subdirectory
+            base = os.path.abspath(self.directory)
+            if not os.path.abspath(path).startswith(base):
+                self.send_error(HTTPStatus.FORBIDDEN, "Path is not in the frontend directory")
+                return ''
+        return path
+
+    def send_head(self):
+        path_parts = self.path.split('?', 1)
+        if len(path_parts) == 1:
+            path_parts.append('')
+        [path, query_str] = path_parts
+        query = urllib.parse.parse_qs(query_str)
+        if path == UPDATES_API_PATH or path == '/' and query.get('api_updates') is not None:
+            return self._api_updates()
+        elif path.startswith(OBJECTS_API_PATH) or path == '/' and query.get('api_object') is not None:
+            if path.startswith(OBJECTS_API_PATH):
+                obj_name = self.path[len(OBJECTS_API_PATH) + 1:]
+            else:
+                obj_name = query.get('api_object').pop()
+            return self._api_object(obj_name)
+        elif path.endswith('/'):  # Frontend index.html
+            self.path += 'index.html'
+            return super().send_head()
+        else:  # Normal frontend file
+            return super().send_head()
+
+    def _api_updates(self):
+        """Handles a publish-only websocket connection that send show_object events along with their hashes and URLs"""
+
+        # Keep a shared read lock to know if any frontend is still working before shutting down
+        with self.yacv.frontend_lock.r_locked():
+
+            # Avoid accepting new connections while shutting down
+            if self.yacv.shutting_down.is_set() and self.yacv.at_least_one_client.is_set():
+                self.send_error(HTTPStatus.SERVICE_UNAVAILABLE, 'Server is shutting down')
+                return
+            self.yacv.at_least_one_client.set()
+            logger.debug('Updates client connected')
+
+            self.send_response(HTTPStatus.OK)
+            self.send_header("Content-Type", "text/event-stream")
+            self.send_header("Cache-Control", "no-cache")
+            # Chunked transfer encoding!
+            self.send_header("Transfer-Encoding", "chunked")
+            self.end_headers()
+
+            def write_chunk(_chunk_data: str):
+                self.wfile.write(hex(len(_chunk_data))[2:].encode('utf-8'))
+                self.wfile.write(b'\r\n')
+                self.wfile.write(_chunk_data.encode('utf-8'))
+                self.wfile.write(b'\r\n')
+                self.wfile.flush()
+
+            write_chunk('retry: 100\n\n')
+
+            subscription = self.yacv.show_events.subscribe(yield_timeout=1.0)  # Keep-alive interval
+            try:
+                for data in subscription:
+                    if data is None:
+                        write_chunk(':keep-alive\n\n')
+                    else:
+                        logger.debug('Sending info about %s: %s', data.name, data)
+                        # noinspection PyUnresolvedReferences
+                        to_send = data.to_json()
+                        write_chunk(f'data: {to_send}\n\n')
+            except BrokenPipeError:  # Client disconnected normally
+                pass
+            finally:
+                subscription.close()
+
+        logger.debug('Updates client disconnected')
+
+    def _api_object(self, obj_name: str):
+        """Returns the object file with the matching name, building it if necessary."""
+        # Export the object (or fail if not found)
+        _export = self.yacv.export(obj_name)
+        if _export is None:
+            self.send_error(HTTPStatus.NOT_FOUND, f'Object {obj_name} not found')
+            return io.BytesIO()
+
+        exported_glb, _hash = _export
+
+        # Wrap the GLB in a response and return it
+        self.send_response(HTTPStatus.OK)
+        self.send_header('Content-Type', 'model/gltf-binary')
+        self.send_header('Content-Length', str(len(exported_glb)))
+        self.send_header('Content-Disposition', f'attachment; filename="{obj_name}.glb"')
+        self.send_header('E-Tag', f'"{_hash}"')
+        self.end_headers()
+        self.wfile.write(exported_glb)

yacv_server/plugin.py

@@ -1 +1 @@
-# TODO: Plugins that can freely modify the GLTF file as it is being built
+# TODO(if there is interest): Plugins that can freely modify the GLTF file as it is being built

yacv_server/pubsub.py

@@ -1,64 +1,89 @@
-import asyncio
+import queue
+import queue
+import threading
 from typing import List, TypeVar, \
-    Generic, AsyncGenerator
+    Generic, Generator
 
-from mylogger import logger
+from yacv_server.mylogger import logger
 
 T = TypeVar('T')
 
+_end_of_queue = object()
+
 
 class BufferedPubSub(Generic[T]):
-    """A simple implementation of publish-subscribe pattern using asyncio and buffering all previous events"""
+    """A simple implementation of publish-subscribe pattern using threading and buffering all previous events"""
 
     _buffer: List[T]
-    _subscribers: List[asyncio.Queue[T]]
-    _lock = asyncio.Lock()
-    max_buffer_size = 1000
+    _buffer_lock: threading.Lock
+    _subscribers: List[queue.Queue[T]]
+    _subscribers_lock: threading.Lock
+    max_buffer_size: int
 
-    def __init__(self):
+    def __init__(self, max_buffer_size: int = 100):
         self._buffer = []
+        self._buffer_lock = threading.Lock()
         self._subscribers = []
+        self._subscribers_lock = threading.Lock()
+        self.max_buffer_size = max_buffer_size
 
-    def publish_nowait(self, event: T):
+    def publish(self, event: T):
         """Publishes an event without blocking (synchronous API does not require locking)"""
-        self._buffer.append(event)
-        if len(self._buffer) > self.max_buffer_size:
-            self._buffer.pop(0)
-        for q in self._subscribers:
-            q.put_nowait(event)
+        with self._buffer_lock:
+            self._buffer.append(event)
+            if len(self._buffer) > self.max_buffer_size:
+                self._buffer.pop(0)
+            for q in self._subscribers:
+                q.put(event)
 
-    async def _subscribe(self, include_buffered: bool = True, include_future: bool = True) -> asyncio.Queue[T]:
+    def _subscribe(self, include_buffered: bool = True, include_future: bool = True) -> queue.Queue[T]:
         """Subscribes to events"""
-        q = asyncio.Queue()
-        async with self._lock:
+        q = queue.Queue()
+        with self._subscribers_lock:
             self._subscribers.append(q)
         logger.debug(f"Subscribed to %s (%d subscribers)", self, len(self._subscribers))
         if include_buffered:
-            for event in self._buffer:
-                await q.put(event)
+            with self._buffer_lock:
+                for event in self._buffer:
+                    q.put(event)
             if not include_future:
-                await q.put(None)
+                q.put(_end_of_queue)
         return q
 
-    async def _unsubscribe(self, q: asyncio.Queue[T]):
+    def _unsubscribe(self, q: queue.Queue[T]):
         """Unsubscribes from events"""
-        async with self._lock:
+        with self._subscribers_lock:
             self._subscribers.remove(q)
         logger.debug(f"Unsubscribed from %s (%d subscribers)", self, len(self._subscribers))
 
-    async def subscribe(self, include_buffered: bool = True, include_future: bool = True) -> AsyncGenerator[T, None]:
-        """Subscribes to events as an async generator that yields events and automatically unsubscribes"""
-        q = await self._subscribe(include_buffered, include_future)
+    def subscribe(self, include_buffered: bool = True, include_future: bool = True, yield_timeout: float = 0.0) -> \
+            Generator[T, None, None]:
+        """Subscribes to events as an generator that yields events and automatically unsubscribes"""
+        q = self._subscribe(include_buffered, include_future)
         try:
             while True:
-                v = await q.get()
+                try:
+                    v = q.get(timeout=yield_timeout)
+                except queue.Empty:
+                    v = None
                 # include_future is incompatible with None values as they are used to signal the end of the stream
-                if v is None and not include_future:
+                if v is _end_of_queue:
                     break
                 yield v
         finally:  # When aclose() is called
-            await self._unsubscribe(q)
+            self._unsubscribe(q)
 
     def buffer(self) -> List[T]:
         """Returns a shallow copy of the list of buffered events"""
-        return self._buffer[:]
+        with self._buffer_lock:
+            return self._buffer[:]
+
+    def delete(self, event: T):
+        """Deletes an event from the buffer"""
+        with self._buffer_lock:
+            self._buffer.remove(event)
+
+    def clear(self):
+        """Clears the buffer"""
+        with self._buffer_lock:
+            self._buffer.clear()

yacv_server/rwlock.py

@@ -0,0 +1,96 @@
+# -*- coding: utf-8 -*-
+""" rwlock.py
+
+    A class to implement read-write locks on top of the standard threading
+    library.
+
+    This is implemented with two mutexes (threading.Lock instances) as per this
+    wikipedia pseudocode:
+
+    https://en.wikipedia.org/wiki/Readers%E2%80%93writer_lock#Using_two_mutexes
+
+    Code written by Tyler Neylon at Unbox Research.
+
+    This file is public domain.
+"""
+
+# _______________________________________________________________________
+# Imports
+
+from contextlib import contextmanager
+from threading import Lock
+
+
+# _______________________________________________________________________
+# Class
+
+class RWLock(object):
+    """ RWLock class; this is meant to allow an object to be read from by
+        multiple threads, but only written to by a single thread at a time. See:
+        https://en.wikipedia.org/wiki/Readers%E2%80%93writer_lock
+
+        Usage:
+
+            from rwlock import RWLock
+
+            my_obj_rwlock = RWLock()
+
+            # When reading from my_obj:
+            with my_obj_rwlock.r_locked():
+                do_read_only_things_with(my_obj)
+
+            # When writing to my_obj:
+            with my_obj_rwlock.w_locked():
+                mutate(my_obj)
+    """
+
+    def __init__(self):
+
+        self.w_lock = Lock()
+        self.num_r_lock = Lock()
+        self.num_r = 0
+
+    # ___________________________________________________________________
+    # Reading methods.
+
+    def r_acquire(self, *args, **kwargs):
+        self.num_r_lock.acquire(*args, **kwargs)
+        self.num_r += 1
+        if self.num_r == 1:
+            self.w_lock.acquire(*args, **kwargs)
+        self.num_r_lock.release()
+
+    def r_release(self, *args, **kwargs):
+        assert self.num_r > 0
+        self.num_r_lock.acquire(*args, **kwargs)
+        self.num_r -= 1
+        if self.num_r == 0:
+            self.w_lock.release()
+        self.num_r_lock.release()
+
+    @contextmanager
+    def r_locked(self, *args, **kwargs):
+        """ This method is designed to be used via the `with` statement. """
+        try:
+            self.r_acquire(*args, **kwargs)
+            yield
+        finally:
+            self.r_release()
+
+    # ___________________________________________________________________
+    # Writing methods.
+
+    def w_acquire(self, *args, **kwargs):
+        self.w_lock.acquire(*args, **kwargs)
+
+    def w_release(self):
+        self.w_lock.release()
+
+    @contextmanager
+    def w_locked(self, *args, **kwargs):
+        """ This method is designed to be used via the `with` statement. """
+        try:
+            self.w_acquire(*args, **kwargs)
+            yield
+        finally:
+            self.w_release()

yacv_server/server.py

@@ -1,306 +0,0 @@
-import asyncio
-import atexit
-import os
-import signal
-import sys
-import time
-from dataclasses import dataclass
-from threading import Thread
-from typing import Optional, Dict, Union
-
-import aiohttp_cors
-from OCP.TopLoc import TopLoc_Location
-from OCP.TopoDS import TopoDS_Shape
-from aiohttp import web
-from build123d import Shape, Axis, Location, Vector
-from dataclasses_json import dataclass_json
-
-from cad import get_shape, grab_all_cad, image_to_gltf
-from mylogger import logger
-from pubsub import BufferedPubSub
-from tessellate import _hashcode, tessellate
-
-# Find the frontend folder (optional, but recommended)
-FILE_DIR = os.path.dirname(__file__)
-FRONTEND_BASE_PATH = os.getenv('FRONTEND_BASE_PATH', os.path.join(FILE_DIR, 'frontend'))
-if not os.path.exists(FRONTEND_BASE_PATH):
-    if os.path.exists(os.path.join(FILE_DIR, '..', 'dist')):  # Fallback to dev build
-        FRONTEND_BASE_PATH = os.path.join(FILE_DIR, '..', 'dist')
-    else:
-        logger.warning('Frontend not found at %s', FRONTEND_BASE_PATH)
-
-# Define the API paths (also available at the root path for simplicity)
-UPDATES_API_PATH = '/api/updates'
-OBJECTS_API_PATH = '/api/object'  # /{name}
-
-
-@dataclass_json
-@dataclass
-class UpdatesApiData:
-    """Data sent to the client through the updates API"""
-    name: str
-    """Name of the object. Should be unique unless you want to overwrite the previous object"""
-    hash: str
-    """Hash of the object, to detect changes without rebuilding the object"""
-
-
-class UpdatesApiFullData(UpdatesApiData):
-    obj: Optional[TopoDS_Shape]
-    """The OCCT object, if any (not serialized)"""
-    kwargs: Optional[Dict[str, any]]
-    """The show_object options, if any (not serialized)"""
-
-    def __init__(self, name: str, hash: str, obj: Optional[TopoDS_Shape] = None,
-                 kwargs: Optional[Dict[str, any]] = None):
-        self.name = name
-        self.hash = hash
-        self.obj = obj
-        self.kwargs = kwargs
-
-    def to_json(self) -> str:
-        return super().to_json()
-
-
-# noinspection PyUnusedLocal
-async def _index_handler(request: web.Request) -> web.Response:
-    return web.HTTPTemporaryRedirect(location='index.html')
-
-
-class Server:
-    app = web.Application()
-    runner: web.AppRunner
-    thread: Optional[Thread] = None
-    do_shutdown = asyncio.Event()
-    show_events = BufferedPubSub[UpdatesApiFullData]()
-    object_events: Dict[str, BufferedPubSub[bytes]] = {}
-    object_events_lock = asyncio.Lock()
-
-    def __init__(self, *args, **kwargs):
-        # --- Routes ---
-        # - APIs
-        self.app.router.add_route('GET', f'{UPDATES_API_PATH}', self._api_updates)
-        self.app.router.add_route('GET', f'{OBJECTS_API_PATH}/{{name}}', self._api_object)
-        # - Single websocket/objects/frontend entrypoint to ease client configuration
-        self.app.router.add_get('/', self._entrypoint)
-        # - Static files from the frontend
-        self.app.router.add_get('/{path:(.*/|)}', _index_handler)  # Any folder -> index.html
-        self.app.router.add_static('/', path=FRONTEND_BASE_PATH, name='static_frontend')
-        # --- CORS ---
-        cors = aiohttp_cors.setup(self.app, defaults={
-            "*": aiohttp_cors.ResourceOptions(
-                allow_credentials=True,
-                expose_headers="*",
-                allow_headers="*",
-            )
-        })
-        for route in list(self.app.router.routes()):
-            cors.add(route)
-        # --- Misc ---
-        self.loop = asyncio.new_event_loop()
-
-    def start(self):
-        """Starts the web server in the background"""
-        assert self.thread is None, "Server currently running, cannot start another one"
-        # Start the server in a separate daemon thread
-        self.thread = Thread(target=self._run_server, name='yacv_server', daemon=True)
-        signal.signal(signal.SIGINT | signal.SIGTERM, self.stop)
-        atexit.register(self.stop)
-        self.thread.start()
-
-    # noinspection PyUnusedLocal
-    def stop(self, *args):
-        """Stops the web server"""
-        if self.thread is None:
-            print('Cannot stop server because it is not running')
-            return
-        # FIXME: Wait for at least one client to confirm ready before stopping in case we are too fast?
-        self.loop.call_soon_threadsafe(lambda *a: self.do_shutdown.set())
-        self.thread.join(timeout=12)
-        self.thread = None
-        if len(args) >= 1 and args[0] in (signal.SIGINT, signal.SIGTERM):
-            sys.exit(0)  # Exit with success
-
-    def _run_server(self):
-        """Runs the web server"""
-        asyncio.set_event_loop(self.loop)
-        self.loop.run_until_complete(self._run_server_async())
-        self.loop.stop()
-        self.loop.close()
-
-    async def _run_server_async(self):
-        """Runs the web server (async)"""
-        runner = web.AppRunner(self.app)
-        await runner.setup()
-        site = web.TCPSite(runner, os.getenv('YACV_HOST', 'localhost'), int(os.getenv('YACV_PORT', 32323)))
-        await site.start()
-        # print(f'Server started at {site.name}')
-        # Wait for a signal to stop the server while running
-        await self.do_shutdown.wait()
-        # print('Shutting down server...')
-        await runner.cleanup()
-
-    async def _entrypoint(self, request: web.Request) -> web.StreamResponse:
-        """Main entrypoint to the server, which automatically serves the frontend/updates/objects"""
-        if request.headers.get('Upgrade', '').lower() == 'websocket':  # WebSocket -> updates API
-            return await self._api_updates(request)
-        elif request.query.get('api_object', '') != '':  # ?api_object={name} -> object API
-            request.match_info['name'] = request.query['api_object']
-            return await self._api_object(request)
-        else:  # Anything else -> frontend index.html
-            return await _index_handler(request)
-
-    async def _api_updates(self, request: web.Request) -> web.WebSocketResponse:
-        """Handles a publish-only websocket connection that send show_object events along with their hashes and URLs"""
-        ws = web.WebSocketResponse()
-        await ws.prepare(request)
-
-        async def _send_api_updates():
-            subscription = self.show_events.subscribe()
-            try:
-                async for data in subscription:
-                    logger.debug('Sending info about %s to %s: %s', data.name, request.remote, data)
-                    # noinspection PyUnresolvedReferences
-                    await ws.send_str(data.to_json())
-            finally:
-                await subscription.aclose()
-
-        # Start sending updates to the client automatically
-        send_task = asyncio.create_task(_send_api_updates())
-        receive_task = asyncio.create_task(ws.receive())
-        try:
-            logger.debug('Client connected: %s', request.remote)
-            # Wait for the client to close the connection (or send a message)
-            done, pending = await asyncio.wait([send_task, receive_task], return_when=asyncio.FIRST_COMPLETED)
-            # Make sure to stop sending updates to the client and close the connection
-            for task in pending:
-                task.cancel()
-        finally:
-            await ws.close()
-            logger.debug('Client disconnected: %s', request.remote)
-
-        return ws
-
-    obj_counter = 0
-
-    def _show_common(self, name: Optional[str], hash: str, start: float, obj: Optional[TopoDS_Shape] = None,
-                     kwargs=None):
-        name = name or f'object_{self.obj_counter}'
-        self.obj_counter += 1
-        precomputed_info = UpdatesApiFullData(name=name, hash=hash, obj=obj, kwargs=kwargs or {})
-        self.show_events.publish_nowait(precomputed_info)
-        logger.info('show_object(%s, %s) took %.3f seconds', name, hash, time.time() - start)
-        return precomputed_info
-
-    def show(self, any_object: Union[bytes, TopoDS_Shape, any], name: Optional[str] = None, **kwargs):
-        """Publishes "any" object to the server"""
-        if isinstance(any_object, bytes):
-            self.show_gltf(any_object, name, **kwargs)
-        else:
-            self.show_cad(any_object, name, **kwargs)
-
-    def show_gltf(self, gltf: bytes, name: Optional[str] = None, **kwargs):
-        """Publishes any single-file GLTF object to the server."""
-        start = time.time()
-        # Precompute the info and send it to the client as if it was a CAD object
-        precomputed_info = self._show_common(name, _hashcode(gltf, **kwargs), start, kwargs=kwargs)
-        # Also pre-populate the GLTF data for the object API
-        publish_to = BufferedPubSub[bytes]()
-        publish_to.publish_nowait(gltf)
-        publish_to.publish_nowait(b'')  # Signal the end of the stream
-        self.object_events[precomputed_info.name] = publish_to
-
-    def show_image(self, source: str | bytes, center: any, ppmm: int, name: Optional[str] = None,
-                   save_mime: str = 'image/jpeg', **kwargs):
-        """Publishes an image as a quad GLTF object, indicating the center location and pixels per millimeter."""
-        # Convert the image to a GLTF CAD object
-        gltf, name = image_to_gltf(source, center, ppmm, name, save_mime)
-        # Publish it like any other GLTF object
-        self.show_gltf(gltf, name, **kwargs)
-
-    def show_cad(self, obj: Union[TopoDS_Shape, any], name: Optional[str] = None, **kwargs):
-        """Publishes a CAD object to the server"""
-        start = time.time()
-
-        # Get the shape of a CAD-like object
-        obj = get_shape(obj)
-
-        # Convert Z-up (OCCT convention) to Y-up (GLTF convention)
-        if isinstance(obj, TopoDS_Shape):
-            obj = Shape(obj).rotate(Axis.X, -90).wrapped
-        elif isinstance(obj, TopLoc_Location):
-            tmp_location = Location(obj)
-            tmp_location.position = Vector(tmp_location.position.X, tmp_location.position.Z, -tmp_location.position.Y)
-            tmp_location.orientation = Vector(tmp_location.orientation.X - 90, tmp_location.orientation.Y,
-                                              tmp_location.orientation.Z)
-            obj = tmp_location.wrapped
-
-        self._show_common(name, _hashcode(obj, **kwargs), start, obj, kwargs)
-
-    def show_cad_all(self, **kwargs):
-        """Publishes all CAD objects to the server"""
-        for name, obj in grab_all_cad():
-            self.show_cad(obj, name, **kwargs)
-
-    async def _api_object(self, request: web.Request) -> web.Response:
-        """Returns the object file with the matching name, building it if necessary."""
-        # Export the object (or fail if not found)
-        exported_glb = await self.export(request.match_info['name'])
-
-        # Wrap the GLB in a response and return it
-        response = web.Response(body=exported_glb)
-        response.content_type = 'model/gltf-binary'
-        response.headers['Content-Disposition'] = f'attachment; filename="{request.match_info["name"]}.glb"'
-        return response
-
-    def shown_object_names(self) -> list[str]:
-        """Returns the names of all objects that have been shown"""
-        return list([obj.name for obj in self.show_events.buffer()])
-
-    async def export(self, name: str) -> bytes:
-        """Export the given previously-shown object to a single GLB file, building it if necessary."""
-        start = time.time()
-
-        # Check that the object to build exists and grab it if it does
-        found = False
-        obj: Optional[TopoDS_Shape] = None
-        kwargs: Optional[Dict[str, any]] = None
-        subscription = self.show_events.buffer()
-        for data in subscription:
-            if data.name == name:
-                obj = data.obj
-                kwargs = data.kwargs
-                found = True  # Required because obj could be None
-                break
-        if not found:
-            raise web.HTTPNotFound(text=f'No object named {name} was previously shown')
-
-        # Use the lock to ensure that we don't build the object twice
-        async with self.object_events_lock:
-            # If there are no object events for this name, we need to build the object
-            if name not in self.object_events:
-                # Prepare the pubsub for the object
-                publish_to = BufferedPubSub[bytes]()
-                self.object_events[name] = publish_to
-
-                def _build_object():
-                    # Build and publish the object (once)
-                    gltf = tessellate(obj, tolerance=kwargs.get('tolerance', 0.1),
-                                      angular_tolerance=kwargs.get('angular_tolerance', 0.1),
-                                      faces=kwargs.get('faces', True),
-                                      edges=kwargs.get('edges', True),
-                                      vertices=kwargs.get('vertices', True))
-                    glb_list_of_bytes = gltf.save_to_bytes()
-                    publish_to.publish_nowait(b''.join(glb_list_of_bytes))
-                    logger.info('export(%s) took %.3f seconds, %d parts', name, time.time() - start,
-                                len(gltf.meshes[0].primitives))
-
-                # We should build it fully even if we are cancelled, so we use a separate task
-                # Furthermore, building is CPU-bound, so we use the default executor
-                await asyncio.get_running_loop().run_in_executor(None, _build_object)
-
-        # In either case return the elements of a subscription to the async generator
-        subscription = self.object_events[name].subscribe()
-        try:
-            return await anext(subscription)
-        finally:
-            await subscription.aclose()

yacv_server/tessellate.py

@@ -13,13 +13,13 @@ from OCP.TopoDS import TopoDS_Face, TopoDS_Edge, TopoDS_Shape, TopoDS_Vertex
 from build123d import Shape, Vertex, Face, Location
 from pygltflib import GLTF2
 
-import mylogger
-from cad import CADLike
-from gltf import GLTFMgr
+from yacv_server.cad import CADCoreLike
+from yacv_server.gltf import GLTFMgr
+from yacv_server.mylogger import logger
 
 
 def tessellate(
-        cad_like: CADLike,
+        cad_like: CADCoreLike,
         tolerance: float = 0.1,
         angular_tolerance: float = 0.1,
         faces: bool = True,
@@ -36,26 +36,26 @@ def tessellate(
         shape = Shape(cad_like)
 
         # Perform tessellation tasks
-        edge_to_faces: Dict[TopoDS_Edge, List[TopoDS_Face]] = {}
-        vertex_to_faces: Dict[TopoDS_Vertex, List[TopoDS_Face]] = {}
+        edge_to_faces: Dict[str, List[TopoDS_Face]] = {}
+        vertex_to_faces: Dict[str, List[TopoDS_Face]] = {}
         if faces:
             for face in shape.faces():
                 _tessellate_face(mgr, face.wrapped, tolerance, angular_tolerance)
                 if edges:
                     for edge in face.edges():
-                        edge_to_faces[edge.wrapped] = edge_to_faces.get(edge.wrapped, []) + [face.wrapped]
+                        edge_to_faces[(edge.wrapped)] = edge_to_faces.get((edge.wrapped), []) + [face.wrapped]
                 if vertices:
                     for vertex in face.vertices():
-                        vertex_to_faces[vertex.wrapped] = vertex_to_faces.get(vertex.wrapped, []) + [face.wrapped]
+                        vertex_to_faces[(vertex.wrapped)] = vertex_to_faces.get((vertex.wrapped), []) + [face.wrapped]
         if edges:
             for edge in shape.edges():
-                _tessellate_edge(mgr, edge.wrapped, edge_to_faces.get(edge.wrapped, []), angular_tolerance,
+                _tessellate_edge(mgr, edge.wrapped, edge_to_faces.get((edge.wrapped), []), angular_tolerance,
                                  angular_tolerance)
         if vertices:
             for vertex in shape.vertices():
-                _tessellate_vertex(mgr, vertex.wrapped, vertex_to_faces.get(vertex.wrapped, []))
+                _tessellate_vertex(mgr, vertex.wrapped, vertex_to_faces.get((vertex.wrapped), []))
 
-    return mgr.gltf
+    return mgr.build()
 
 
 def _tessellate_face(
@@ -65,12 +65,12 @@ def _tessellate_face(
         angular_tolerance: float = 0.1
 ):
     face = Shape(ocp_face)
-    face.mesh(tolerance, angular_tolerance)
+    # face.mesh(tolerance, angular_tolerance)
+    tri_mesh = face.tessellate(tolerance, angular_tolerance)
     poly = BRep_Tool.Triangulation_s(face.wrapped, TopLoc_Location())
     if poly is None:
-        mylogger.logger.warn("No triangulation found for face")
+        logger.warn("No triangulation found for face")
         return GLTF2()
-    tri_mesh = face.tessellate(tolerance, angular_tolerance)
 
     # Get UV of each face from the parameters
     uv = [
@@ -78,7 +78,7 @@ def _tessellate_face(
         for v in (poly.UVNode(i) for i in range(1, poly.NbNodes() + 1))
     ]
 
-    vertices = [(v.X, v.Y, v.Z) for v in tri_mesh[0]]
+    vertices = tri_mesh[0]
     indices = tri_mesh[1]
     mgr.add_face(vertices, indices, uv)
 
@@ -91,9 +91,9 @@ def _push_point(v: Tuple[float, float, float], faces: List[TopoDS_Face]) -> Tupl
         push_dir = (push_dir[0] + normal.X, push_dir[1] + normal.Y, push_dir[2] + normal.Z)
     if push_dir != (0, 0, 0):
         # Normalize the push direction by the number of faces and a constant factor
-        # NOTE: Don't overdo it, or metrics will be wrong
-        n = len(faces) / 1e-3
-        push_dir = (push_dir[0] / n, push_dir[1] / n, push_dir[2] / n)
+        # NOTE: Don't overdo it, or metrics will be (more) wrong
+        n = 1e-3 / len(faces)
+        push_dir = (push_dir[0] * n, push_dir[1] * n, push_dir[2] * n)
         # Push the vertex by the normal
         v = (v[0] + push_dir[0], v[1] + push_dir[1], v[2] + push_dir[2])
     return v
@@ -119,6 +119,9 @@ def _tessellate_edge(
             for i in range(1, discretizer.NbPoints() + 1)
         )
     ]
+
+    # Convert strip of vertices to a list of pairs of vertices
+    vertices = [(vertices[i], vertices[i + 1]) for i in range(len(vertices) - 1)]
     mgr.add_edge(vertices)
 
 

yacv_server/yacv.py

@@ -0,0 +1,342 @@
+import atexit
+import copy
+import inspect
+import os
+import signal
+import sys
+import threading
+import time
+from dataclasses import dataclass
+from http.server import ThreadingHTTPServer
+from importlib.metadata import version
+from threading import Thread
+from typing import Optional, Dict, Union, Callable, List, Tuple
+
+from OCP.TopLoc import TopLoc_Location
+from OCP.TopoDS import TopoDS_Shape
+# noinspection PyProtectedMember
+from build123d import Shape, Axis, Location, Vector
+from dataclasses_json import dataclass_json
+
+from yacv_server.cad import get_shape, grab_all_cad, CADCoreLike, CADLike
+from yacv_server.myhttp import HTTPHandler
+from yacv_server.mylogger import logger
+from yacv_server.pubsub import BufferedPubSub
+from yacv_server.rwlock import RWLock
+from yacv_server.tessellate import _hashcode, tessellate
+
+
+@dataclass_json
+@dataclass
+class UpdatesApiData:
+    """Data sent to the client through the updates API"""
+    name: str
+    """Name of the object. Should be unique unless you want to overwrite the previous object"""
+    hash: str
+    """Hash of the object, to detect changes without rebuilding the object"""
+    is_remove: Optional[bool]
+    """Whether to remove the object from the scene. If None, this is a shutdown request"""
+
+
+YACVSupported = Union[bytes, CADCoreLike]
+
+
+class UpdatesApiFullData(UpdatesApiData):
+    obj: YACVSupported
+    """The OCCT object, if any (not serialized)"""
+    kwargs: Optional[Dict[str, any]]
+    """The show_object options, if any (not serialized)"""
+
+    def __init__(self, obj: YACVSupported, name: str, _hash: str, is_remove: Optional[bool] = False,
+                 kwargs: Optional[Dict[str, any]] = None):
+        self.name = name
+        self.hash = _hash
+        self.is_remove = is_remove
+        self.obj = obj
+        self.kwargs = kwargs
+
+    def to_json(self) -> str:
+        # noinspection PyUnresolvedReferences
+        return super().to_json()
+
+
+class YACV:
+    """The main yacv_server class, which manages the web server and the CAD objects."""
+
+    # Startup
+    server_thread: Optional[Thread]
+    """The main thread running the server (will spawn other threads for each request)"""
+    server: Optional[ThreadingHTTPServer]
+    """The server object"""
+    startup_complete: threading.Event
+    """Event to signal when the server has started"""
+
+    # Running
+    show_events: BufferedPubSub[UpdatesApiFullData]
+    """PubSub for show events (objects to be shown in/removed from the scene)"""
+    build_events: Dict[str, BufferedPubSub[bytes]]
+    """PubSub for build events (objects that were built)"""
+    build_events_lock: threading.Lock
+    """Lock to ensure that objects are only built once"""
+
+    # Shutdown
+    at_least_one_client: threading.Event
+    """Event to signal when at least one client has connected"""
+    shutting_down: threading.Event
+    """Event to signal when the server is shutting down"""
+    frontend_lock: RWLock
+    """Lock to ensure that the frontend has finished working before we shut down"""
+
+    def __init__(self):
+        self.server_thread = None
+        self.server = None
+        self.startup_complete = threading.Event()
+        self.show_events = BufferedPubSub()
+        self.build_events = {}
+        self.build_events_lock = threading.Lock()
+        self.at_least_one_client = threading.Event()
+        self.shutting_down = threading.Event()
+        self.frontend_lock = RWLock()
+        logger.info('Using yacv-server v%s', version('yacv-server'))
+
+    def start(self):
+        """Starts the web server in the background"""
+        assert self.server_thread is None, "Server currently running, cannot start another one"
+        assert self.startup_complete.is_set() is False, "Server already started"
+        # Start the server in a separate daemon thread
+        self.server_thread = Thread(target=self._run_server, name='yacv_server', daemon=True)
+        signal.signal(signal.SIGINT | signal.SIGTERM, self.stop)
+        atexit.register(self.stop)
+        self.server_thread.start()
+        logger.info('Server started (requested)...')
+        # Wait for the server to be ready before returning
+        while not self.startup_complete.wait():
+            time.sleep(0.01)
+        logger.info('Server started (received)...')
+
+    # noinspection PyUnusedLocal
+    def stop(self, *args):
+        """Stops the web server"""
+        if self.server_thread is None:
+            logger.error('Cannot stop server because it is not running')
+            return
+
+        # Inform the server that we are shutting down
+        self.shutting_down.set()
+        # noinspection PyTypeChecker
+        self.show_events.publish(UpdatesApiFullData(name='__shutdown', _hash='', is_remove=None, obj=None))
+
+        # If we were too fast, ensure that at least one client has connected
+        graceful_secs_connect = float(os.getenv('YACV_GRACEFUL_SECS_CONNECT', 12.0))
+        if graceful_secs_connect > 0:
+            start = time.time()
+            try:
+                if not self.at_least_one_client.is_set():
+                    logger.warning(
+                        'Waiting for at least one frontend request before stopping server, cancel with CTRL+C...')
+                while (not self.at_least_one_client.wait(graceful_secs_connect / 10) and
+                       time.time() - start < graceful_secs_connect):
+                    time.sleep(0.01)
+            except KeyboardInterrupt:
+                pass
+
+        # Wait for the server to stop gracefully (all frontends to stop working)
+        graceful_secs_request = float(os.getenv('YACV_GRACEFUL_SECS_WORK', 1000000))
+        with self.frontend_lock.w_locked(timeout=graceful_secs_request):
+            # Stop the server
+            self.server.shutdown()
+
+            # Wait for the server thread to stop
+            self.server_thread.join(timeout=30)
+            self.server_thread = None
+            if len(args) >= 1 and args[0] in (signal.SIGINT, signal.SIGTERM):
+                sys.exit(0)  # Exit with success
+
+    def _run_server(self):
+        """Runs the web server"""
+        logger.info('Starting server...')
+        self.server = ThreadingHTTPServer(
+            (os.getenv('YACV_HOST', 'localhost'), int(os.getenv('YACV_PORT', 32323))),
+            lambda a, b, c: HTTPHandler(a, b, c, yacv=self))
+        # noinspection HttpUrlsUsage
+        logger.info(f'Serving at http://{self.server.server_name}:{self.server.server_port}')
+        self.startup_complete.set()
+        self.server.serve_forever()
+
+    def show(self, *objs: List[YACVSupported], names: Optional[Union[str, List[str]]] = None, **kwargs):
+        # Prepare the arguments
+        start = time.time()
+        names = names or [_find_var_name(obj) for obj in objs]
+        if isinstance(names, str):
+            names = [names]
+        assert len(names) == len(objs), 'Number of names must match the number of objects'
+
+        # Handle auto clearing of previous objects
+        if kwargs.get('auto_clear', True):
+            self.clear(except_names=names)
+
+        # Remove a previous object event with the same name
+        for old_event in self.show_events.buffer():
+            if old_event.name in names:
+                self.show_events.delete(old_event)
+                if old_event.name in self.build_events:
+                    del self.build_events[old_event.name]
+
+        # Publish the show event
+        for obj, name in zip(objs, names):
+            if not isinstance(obj, bytes):
+                obj = _preprocess_cad(obj, **kwargs)
+            _hash = _hashcode(obj, **kwargs)
+            event = UpdatesApiFullData(name=name, _hash=_hash, obj=obj, kwargs=kwargs or {})
+            self.show_events.publish(event)
+
+        logger.info('show %s took %.3f seconds', names, time.time() - start)
+
+    def show_cad_all(self, **kwargs):
+        """Publishes all CAD objects in the current scope to the server"""
+        all_cad = grab_all_cad()
+        self.show(*[cad for _, cad in all_cad], names=[name for name, _ in all_cad], **kwargs)
+
+    def remove(self, name: str):
+        """Removes a previously-shown object from the scene"""
+        show_events = self._show_events(name)
+        if len(show_events) > 0:
+            # Ensure only the new remove event remains for this name
+            for old_show_event in show_events:
+                self.show_events.delete(old_show_event)
+
+            # Delete any cached object builds
+            with self.build_events_lock:
+                if name in self.build_events:
+                    del self.build_events[name]
+
+            # Publish the remove event
+            show_event = copy.copy(show_events[-1])
+            show_event.is_remove = True
+            self.show_events.publish(show_event)
+
+    def clear(self, except_names: List[str] = None):
+        """Clears all previously-shown objects from the scene"""
+        if except_names is None:
+            except_names = []
+        for event in self.show_events.buffer():
+            if event.name not in except_names:
+                self.remove(event.name)
+
+    def shown_object_names(self, apply_removes: bool = True) -> List[str]:
+        """Returns the names of all objects that have been shown"""
+        res = set()
+        for obj in self.show_events.buffer():
+            if not obj.is_remove or not apply_removes:
+                res.add(obj.name)
+            else:
+                res.discard(obj.name)
+        return list(res)
+
+    def _show_events(self, name: str, apply_removes: bool = True) -> List[UpdatesApiFullData]:
+        """Returns the show events with the given name"""
+        res = []
+        for event in self.show_events.buffer():
+            if event.name == name:
+                if not event.is_remove or not apply_removes:
+                    res.append(event)
+                else:
+                    # Also remove the previous events
+                    for old_event in res:
+                        if old_event.name == event.name:
+                            res.remove(old_event)
+        return res
+
+    def export(self, name: str) -> Optional[Tuple[bytes, str]]:
+        """Export the given previously-shown object to a single GLB blob, building it if necessary."""
+        start = time.time()
+
+        # Check that the object to build exists and grab it if it does
+        events = self._show_events(name)
+        if len(events) == 0:
+            logger.warning('Object %s not found', name)
+            return None
+        event = events[-1]
+
+        # Use the lock to ensure that we don't build the object twice
+        with self.build_events_lock:
+            # If there are no object events for this name, we need to build the object
+            if name not in self.build_events:
+                logger.debug('Building object %s with hash %s', name, event.hash)
+
+                # Prepare the pubsub for the object
+                publish_to = BufferedPubSub[bytes]()
+                self.build_events[name] = publish_to
+
+                # Build and publish the object (once)
+                if isinstance(event.obj, bytes):  # Already a GLTF
+                    publish_to.publish(event.obj)
+                else:  # CAD object to tessellate and convert to GLTF
+                    gltf = tessellate(event.obj, tolerance=event.kwargs.get('tolerance', 0.1),
+                                      angular_tolerance=event.kwargs.get('angular_tolerance', 0.1),
+                                      faces=event.kwargs.get('faces', True),
+                                      edges=event.kwargs.get('edges', True),
+                                      vertices=event.kwargs.get('vertices', True))
+                    glb_list_of_bytes = gltf.save_to_bytes()
+                    glb_bytes = b''.join(glb_list_of_bytes)
+                    publish_to.publish(glb_bytes)
+                    logger.info('export(%s) took %.3f seconds, %s', name, time.time() - start,
+                                sizeof_fmt(len(glb_bytes)))
+
+            # In either case return the elements of a subscription to the async generator
+            subscription = self.build_events[name].subscribe()
+            try:
+                return next(subscription), event.hash
+            finally:
+                subscription.close()
+
+    def export_all(self, folder: str,
+                   export_filter: Callable[[str, Optional[CADCoreLike]], bool] = lambda name, obj: True):
+        """Export all previously-shown objects to GLB files in the given folder"""
+        os.makedirs(folder, exist_ok=True)
+        for name in self.shown_object_names():
+            if export_filter(name, self._show_events(name)[-1].obj):
+                with open(os.path.join(folder, f'{name}.glb'), 'wb') as f:
+                    f.write(self.export(name)[0])
+
+
+# noinspection PyUnusedLocal
+def _preprocess_cad(obj: CADLike, **kwargs) -> CADCoreLike:
+    # Get the shape of a CAD-like object
+    obj = get_shape(obj)
+
+    # Convert Z-up (OCCT convention) to Y-up (GLTF convention)
+    if isinstance(obj, TopoDS_Shape):
+        obj = Shape(obj).rotate(Axis.X, -90).wrapped
+    elif isinstance(obj, TopLoc_Location):
+        tmp_location = Location(obj)
+        tmp_location.position = Vector(tmp_location.position.X, tmp_location.position.Z,
+                                       -tmp_location.position.Y)
+        tmp_location.orientation = Vector(tmp_location.orientation.X - 90, tmp_location.orientation.Y,
+                                          tmp_location.orientation.Z)
+        obj = tmp_location.wrapped
+
+    return obj
+
+
+_find_var_name_count = 0
+
+
+def _find_var_name(obj: any, avoid_levels: int = 2) -> str:
+    """A hacky way to get a stable name for an object that may change over time"""
+    global _find_var_name_count
+    obj_shape = get_shape(obj)
+    for frame in inspect.stack()[avoid_levels:]:
+        for key, value in frame.frame.f_locals.items():
+            if get_shape(value, error=False) is obj_shape:
+                return key
+    _find_var_name_count += 1
+    return 'unknown_var_' + str(_find_var_name_count)
+
+
+def sizeof_fmt(num, suffix="B"):
+    for unit in ("", "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi"):
+        if abs(num) < 1024.0:
+            return f"{num:3.1f}{unit}{suffix}"
+        num /= 1024.0
+    return f"{num:.1f}Yi{suffix}"

yarn.lock

@@ -275,143 +275,143 @@
   resolved "https://registry.yarnpkg.com/@commander-js/extra-typings/-/extra-typings-11.1.0.tgz#dd19fcb8cc6e33ede237fc1b7af96c70833d8f93"
   integrity sha512-GuvZ38d23H+7Tz2C9DhzCepivsOsky03s5NI+KCy7ke1FNUvsJ2oO47scQ9YaGGhgjgNW5OYYNSADmbjcSoIhw==
 
-"@esbuild/aix-ppc64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/aix-ppc64/-/aix-ppc64-0.19.12.tgz#d1bc06aedb6936b3b6d313bf809a5a40387d2b7f"
-  integrity sha512-bmoCYyWdEL3wDQIVbcyzRyeKLgk2WtWLTWz1ZIAZF/EGbNOwSA6ew3PftJ1PqMiOOGu0OyFMzG53L0zqIpPeNA==
+"@esbuild/aix-ppc64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/aix-ppc64/-/aix-ppc64-0.20.2.tgz#a70f4ac11c6a1dfc18b8bbb13284155d933b9537"
+  integrity sha512-D+EBOJHXdNZcLJRBkhENNG8Wji2kgc9AZ9KiPr1JuZjsNtyHzrsfLRrY0tk2H2aoFu6RANO1y1iPPUCDYWkb5g==
 
-"@esbuild/android-arm64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/android-arm64/-/android-arm64-0.19.12.tgz#7ad65a36cfdb7e0d429c353e00f680d737c2aed4"
-  integrity sha512-P0UVNGIienjZv3f5zq0DP3Nt2IE/3plFzuaS96vihvD0Hd6H/q4WXUGpCxD/E8YrSXfNyRPbpTq+T8ZQioSuPA==
+"@esbuild/android-arm64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/android-arm64/-/android-arm64-0.20.2.tgz#db1c9202a5bc92ea04c7b6840f1bbe09ebf9e6b9"
+  integrity sha512-mRzjLacRtl/tWU0SvD8lUEwb61yP9cqQo6noDZP/O8VkwafSYwZ4yWy24kan8jE/IMERpYncRt2dw438LP3Xmg==
 
-"@esbuild/android-arm@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/android-arm/-/android-arm-0.19.12.tgz#b0c26536f37776162ca8bde25e42040c203f2824"
-  integrity sha512-qg/Lj1mu3CdQlDEEiWrlC4eaPZ1KztwGJ9B6J+/6G+/4ewxJg7gqj8eVYWvao1bXrqGiW2rsBZFSX3q2lcW05w==
+"@esbuild/android-arm@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/android-arm/-/android-arm-0.20.2.tgz#3b488c49aee9d491c2c8f98a909b785870d6e995"
+  integrity sha512-t98Ra6pw2VaDhqNWO2Oph2LXbz/EJcnLmKLGBJwEwXX/JAN83Fym1rU8l0JUWK6HkIbWONCSSatf4sf2NBRx/w==
 
-"@esbuild/android-x64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/android-x64/-/android-x64-0.19.12.tgz#cb13e2211282012194d89bf3bfe7721273473b3d"
-  integrity sha512-3k7ZoUW6Q6YqhdhIaq/WZ7HwBpnFBlW905Fa4s4qWJyiNOgT1dOqDiVAQFwBH7gBRZr17gLrlFCRzF6jFh7Kew==
+"@esbuild/android-x64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/android-x64/-/android-x64-0.20.2.tgz#3b1628029e5576249d2b2d766696e50768449f98"
+  integrity sha512-btzExgV+/lMGDDa194CcUQm53ncxzeBrWJcncOBxuC6ndBkKxnHdFJn86mCIgTELsooUmwUm9FkhSp5HYu00Rg==
 
-"@esbuild/darwin-arm64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/darwin-arm64/-/darwin-arm64-0.19.12.tgz#cbee41e988020d4b516e9d9e44dd29200996275e"
-  integrity sha512-B6IeSgZgtEzGC42jsI+YYu9Z3HKRxp8ZT3cqhvliEHovq8HSX2YX8lNocDn79gCKJXOSaEot9MVYky7AKjCs8g==
+"@esbuild/darwin-arm64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/darwin-arm64/-/darwin-arm64-0.20.2.tgz#6e8517a045ddd86ae30c6608c8475ebc0c4000bb"
+  integrity sha512-4J6IRT+10J3aJH3l1yzEg9y3wkTDgDk7TSDFX+wKFiWjqWp/iCfLIYzGyasx9l0SAFPT1HwSCR+0w/h1ES/MjA==
 
-"@esbuild/darwin-x64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/darwin-x64/-/darwin-x64-0.19.12.tgz#e37d9633246d52aecf491ee916ece709f9d5f4cd"
-  integrity sha512-hKoVkKzFiToTgn+41qGhsUJXFlIjxI/jSYeZf3ugemDYZldIXIxhvwN6erJGlX4t5h417iFuheZ7l+YVn05N3A==
+"@esbuild/darwin-x64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/darwin-x64/-/darwin-x64-0.20.2.tgz#90ed098e1f9dd8a9381695b207e1cff45540a0d0"
+  integrity sha512-tBcXp9KNphnNH0dfhv8KYkZhjc+H3XBkF5DKtswJblV7KlT9EI2+jeA8DgBjp908WEuYll6pF+UStUCfEpdysA==
 
-"@esbuild/freebsd-arm64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/freebsd-arm64/-/freebsd-arm64-0.19.12.tgz#1ee4d8b682ed363b08af74d1ea2b2b4dbba76487"
-  integrity sha512-4aRvFIXmwAcDBw9AueDQ2YnGmz5L6obe5kmPT8Vd+/+x/JMVKCgdcRwH6APrbpNXsPz+K653Qg8HB/oXvXVukA==
+"@esbuild/freebsd-arm64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/freebsd-arm64/-/freebsd-arm64-0.20.2.tgz#d71502d1ee89a1130327e890364666c760a2a911"
+  integrity sha512-d3qI41G4SuLiCGCFGUrKsSeTXyWG6yem1KcGZVS+3FYlYhtNoNgYrWcvkOoaqMhwXSMrZRl69ArHsGJ9mYdbbw==
 
-"@esbuild/freebsd-x64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/freebsd-x64/-/freebsd-x64-0.19.12.tgz#37a693553d42ff77cd7126764b535fb6cc28a11c"
-  integrity sha512-EYoXZ4d8xtBoVN7CEwWY2IN4ho76xjYXqSXMNccFSx2lgqOG/1TBPW0yPx1bJZk94qu3tX0fycJeeQsKovA8gg==
+"@esbuild/freebsd-x64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/freebsd-x64/-/freebsd-x64-0.20.2.tgz#aa5ea58d9c1dd9af688b8b6f63ef0d3d60cea53c"
+  integrity sha512-d+DipyvHRuqEeM5zDivKV1KuXn9WeRX6vqSqIDgwIfPQtwMP4jaDsQsDncjTDDsExT4lR/91OLjRo8bmC1e+Cw==
 
-"@esbuild/linux-arm64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-arm64/-/linux-arm64-0.19.12.tgz#be9b145985ec6c57470e0e051d887b09dddb2d4b"
-  integrity sha512-EoTjyYyLuVPfdPLsGVVVC8a0p1BFFvtpQDB/YLEhaXyf/5bczaGeN15QkR+O4S5LeJ92Tqotve7i1jn35qwvdA==
+"@esbuild/linux-arm64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-arm64/-/linux-arm64-0.20.2.tgz#055b63725df678379b0f6db9d0fa85463755b2e5"
+  integrity sha512-9pb6rBjGvTFNira2FLIWqDk/uaf42sSyLE8j1rnUpuzsODBq7FvpwHYZxQ/It/8b+QOS1RYfqgGFNLRI+qlq2A==
 
-"@esbuild/linux-arm@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-arm/-/linux-arm-0.19.12.tgz#207ecd982a8db95f7b5279207d0ff2331acf5eef"
-  integrity sha512-J5jPms//KhSNv+LO1S1TX1UWp1ucM6N6XuL6ITdKWElCu8wXP72l9MM0zDTzzeikVyqFE6U8YAV9/tFyj0ti+w==
+"@esbuild/linux-arm@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-arm/-/linux-arm-0.20.2.tgz#76b3b98cb1f87936fbc37f073efabad49dcd889c"
+  integrity sha512-VhLPeR8HTMPccbuWWcEUD1Az68TqaTYyj6nfE4QByZIQEQVWBB8vup8PpR7y1QHL3CpcF6xd5WVBU/+SBEvGTg==
 
-"@esbuild/linux-ia32@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-ia32/-/linux-ia32-0.19.12.tgz#d0d86b5ca1562523dc284a6723293a52d5860601"
-  integrity sha512-Thsa42rrP1+UIGaWz47uydHSBOgTUnwBwNq59khgIwktK6x60Hivfbux9iNR0eHCHzOLjLMLfUMLCypBkZXMHA==
+"@esbuild/linux-ia32@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-ia32/-/linux-ia32-0.20.2.tgz#c0e5e787c285264e5dfc7a79f04b8b4eefdad7fa"
+  integrity sha512-o10utieEkNPFDZFQm9CoP7Tvb33UutoJqg3qKf1PWVeeJhJw0Q347PxMvBgVVFgouYLGIhFYG0UGdBumROyiig==
 
-"@esbuild/linux-loong64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-loong64/-/linux-loong64-0.19.12.tgz#9a37f87fec4b8408e682b528391fa22afd952299"
-  integrity sha512-LiXdXA0s3IqRRjm6rV6XaWATScKAXjI4R4LoDlvO7+yQqFdlr1Bax62sRwkVvRIrwXxvtYEHHI4dm50jAXkuAA==
+"@esbuild/linux-loong64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-loong64/-/linux-loong64-0.20.2.tgz#a6184e62bd7cdc63e0c0448b83801001653219c5"
+  integrity sha512-PR7sp6R/UC4CFVomVINKJ80pMFlfDfMQMYynX7t1tNTeivQ6XdX5r2XovMmha/VjR1YN/HgHWsVcTRIMkymrgQ==
 
-"@esbuild/linux-mips64el@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-mips64el/-/linux-mips64el-0.19.12.tgz#4ddebd4e6eeba20b509d8e74c8e30d8ace0b89ec"
-  integrity sha512-fEnAuj5VGTanfJ07ff0gOA6IPsvrVHLVb6Lyd1g2/ed67oU1eFzL0r9WL7ZzscD+/N6i3dWumGE1Un4f7Amf+w==
+"@esbuild/linux-mips64el@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-mips64el/-/linux-mips64el-0.20.2.tgz#d08e39ce86f45ef8fc88549d29c62b8acf5649aa"
+  integrity sha512-4BlTqeutE/KnOiTG5Y6Sb/Hw6hsBOZapOVF6njAESHInhlQAghVVZL1ZpIctBOoTFbQyGW+LsVYZ8lSSB3wkjA==
 
-"@esbuild/linux-ppc64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-ppc64/-/linux-ppc64-0.19.12.tgz#adb67dadb73656849f63cd522f5ecb351dd8dee8"
-  integrity sha512-nYJA2/QPimDQOh1rKWedNOe3Gfc8PabU7HT3iXWtNUbRzXS9+vgB0Fjaqr//XNbd82mCxHzik2qotuI89cfixg==
+"@esbuild/linux-ppc64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-ppc64/-/linux-ppc64-0.20.2.tgz#8d252f0b7756ffd6d1cbde5ea67ff8fd20437f20"
+  integrity sha512-rD3KsaDprDcfajSKdn25ooz5J5/fWBylaaXkuotBDGnMnDP1Uv5DLAN/45qfnf3JDYyJv/ytGHQaziHUdyzaAg==
 
-"@esbuild/linux-riscv64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-riscv64/-/linux-riscv64-0.19.12.tgz#11bc0698bf0a2abf8727f1c7ace2112612c15adf"
-  integrity sha512-2MueBrlPQCw5dVJJpQdUYgeqIzDQgw3QtiAHUC4RBz9FXPrskyyU3VI1hw7C0BSKB9OduwSJ79FTCqtGMWqJHg==
+"@esbuild/linux-riscv64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-riscv64/-/linux-riscv64-0.20.2.tgz#19f6dcdb14409dae607f66ca1181dd4e9db81300"
+  integrity sha512-snwmBKacKmwTMmhLlz/3aH1Q9T8v45bKYGE3j26TsaOVtjIag4wLfWSiZykXzXuE1kbCE+zJRmwp+ZbIHinnVg==
 
-"@esbuild/linux-s390x@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-s390x/-/linux-s390x-0.19.12.tgz#e86fb8ffba7c5c92ba91fc3b27ed5a70196c3cc8"
-  integrity sha512-+Pil1Nv3Umes4m3AZKqA2anfhJiVmNCYkPchwFJNEJN5QxmTs1uzyy4TvmDrCRNT2ApwSari7ZIgrPeUx4UZDg==
+"@esbuild/linux-s390x@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-s390x/-/linux-s390x-0.20.2.tgz#3c830c90f1a5d7dd1473d5595ea4ebb920988685"
+  integrity sha512-wcWISOobRWNm3cezm5HOZcYz1sKoHLd8VL1dl309DiixxVFoFe/o8HnwuIwn6sXre88Nwj+VwZUvJf4AFxkyrQ==
 
-"@esbuild/linux-x64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-x64/-/linux-x64-0.19.12.tgz#5f37cfdc705aea687dfe5dfbec086a05acfe9c78"
-  integrity sha512-B71g1QpxfwBvNrfyJdVDexenDIt1CiDN1TIXLbhOw0KhJzE78KIFGX6OJ9MrtC0oOqMWf+0xop4qEU8JrJTwCg==
+"@esbuild/linux-x64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-x64/-/linux-x64-0.20.2.tgz#86eca35203afc0d9de0694c64ec0ab0a378f6fff"
+  integrity sha512-1MdwI6OOTsfQfek8sLwgyjOXAu+wKhLEoaOLTjbijk6E2WONYpH9ZU2mNtR+lZ2B4uwr+usqGuVfFT9tMtGvGw==
 
-"@esbuild/netbsd-x64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/netbsd-x64/-/netbsd-x64-0.19.12.tgz#29da566a75324e0d0dd7e47519ba2f7ef168657b"
-  integrity sha512-3ltjQ7n1owJgFbuC61Oj++XhtzmymoCihNFgT84UAmJnxJfm4sYCiSLTXZtE00VWYpPMYc+ZQmB6xbSdVh0JWA==
+"@esbuild/netbsd-x64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/netbsd-x64/-/netbsd-x64-0.20.2.tgz#e771c8eb0e0f6e1877ffd4220036b98aed5915e6"
+  integrity sha512-K8/DhBxcVQkzYc43yJXDSyjlFeHQJBiowJ0uVL6Tor3jGQfSGHNNJcWxNbOI8v5k82prYqzPuwkzHt3J1T1iZQ==
 
-"@esbuild/openbsd-x64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/openbsd-x64/-/openbsd-x64-0.19.12.tgz#306c0acbdb5a99c95be98bdd1d47c916e7dc3ff0"
-  integrity sha512-RbrfTB9SWsr0kWmb9srfF+L933uMDdu9BIzdA7os2t0TXhCRjrQyCeOt6wVxr79CKD4c+p+YhCj31HBkYcXebw==
+"@esbuild/openbsd-x64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/openbsd-x64/-/openbsd-x64-0.20.2.tgz#9a795ae4b4e37e674f0f4d716f3e226dd7c39baf"
+  integrity sha512-eMpKlV0SThJmmJgiVyN9jTPJ2VBPquf6Kt/nAoo6DgHAoN57K15ZghiHaMvqjCye/uU4X5u3YSMgVBI1h3vKrQ==
 
-"@esbuild/sunos-x64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/sunos-x64/-/sunos-x64-0.19.12.tgz#0933eaab9af8b9b2c930236f62aae3fc593faf30"
-  integrity sha512-HKjJwRrW8uWtCQnQOz9qcU3mUZhTUQvi56Q8DPTLLB+DawoiQdjsYq+j+D3s9I8VFtDr+F9CjgXKKC4ss89IeA==
+"@esbuild/sunos-x64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/sunos-x64/-/sunos-x64-0.20.2.tgz#7df23b61a497b8ac189def6e25a95673caedb03f"
+  integrity sha512-2UyFtRC6cXLyejf/YEld4Hajo7UHILetzE1vsRcGL3earZEW77JxrFjH4Ez2qaTiEfMgAXxfAZCm1fvM/G/o8w==
 
-"@esbuild/win32-arm64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/win32-arm64/-/win32-arm64-0.19.12.tgz#773bdbaa1971b36db2f6560088639ccd1e6773ae"
-  integrity sha512-URgtR1dJnmGvX864pn1B2YUYNzjmXkuJOIqG2HdU62MVS4EHpU2946OZoTMnRUHklGtJdJZ33QfzdjGACXhn1A==
+"@esbuild/win32-arm64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/win32-arm64/-/win32-arm64-0.20.2.tgz#f1ae5abf9ca052ae11c1bc806fb4c0f519bacf90"
+  integrity sha512-GRibxoawM9ZCnDxnP3usoUDO9vUkpAxIIZ6GQI+IlVmr5kP3zUq+l17xELTHMWTWzjxa2guPNyrpq1GWmPvcGQ==
 
-"@esbuild/win32-ia32@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/win32-ia32/-/win32-ia32-0.19.12.tgz#000516cad06354cc84a73f0943a4aa690ef6fd67"
-  integrity sha512-+ZOE6pUkMOJfmxmBZElNOx72NKpIa/HFOMGzu8fqzQJ5kgf6aTGrcJaFsNiVMH4JKpMipyK+7k0n2UXN7a8YKQ==
+"@esbuild/win32-ia32@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/win32-ia32/-/win32-ia32-0.20.2.tgz#241fe62c34d8e8461cd708277813e1d0ba55ce23"
+  integrity sha512-HfLOfn9YWmkSKRQqovpnITazdtquEW8/SoHW7pWpuEeguaZI4QnCRW6b+oZTztdBnZOS2hqJ6im/D5cPzBTTlQ==
 
-"@esbuild/win32-x64@0.19.12":
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/@esbuild/win32-x64/-/win32-x64-0.19.12.tgz#c57c8afbb4054a3ab8317591a0b7320360b444ae"
-  integrity sha512-T1QyPSDCyMXaO3pzBkF96E8xMkiRYbUEZADd29SyPGabqxMViNoii+NcK7eWJAEoU6RZyEm5lVSIjTmcdoB9HA==
+"@esbuild/win32-x64@0.20.2":
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/@esbuild/win32-x64/-/win32-x64-0.20.2.tgz#9c907b21e30a52db959ba4f80bb01a0cc403d5cc"
+  integrity sha512-N49X4lJX27+l9jbLKSqZ6bKNjzQvHaT8IIFUy+YIqmXQdjYCToGWwOItDrfby14c78aDd5NHQl29xingXfCdLQ==
 
-"@gltf-transform/core@^3.10.0":
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/@gltf-transform/core/-/core-3.10.0.tgz#854e7345f23971e4e7367a29183a2d1b62d45e46"
-  integrity sha512-NxVKhSWvH0j1tjZE8Yl461HUMyZLmYmqcbqHw0TOcQd5Q1SV7Y5w6W68XMt9/amRfMAiJLLNREE7kbr+Z0Ydbw==
+"@gltf-transform/core@^3.10.0", "@gltf-transform/core@^3.10.1":
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/@gltf-transform/core/-/core-3.10.1.tgz#d99c060b499482ed2c3304466405bf4c10939831"
+  integrity sha512-50OYemknGNxjBmiOM6iJp04JAu0bl9jvXJfN/gFt9QdJO02cPDcoXlTfSPJG6TVWDcfl0xPlsx1vybcbPVGFcQ==
   dependencies:
     property-graph "^1.3.1"
 
-"@gltf-transform/extensions@^3.10.0":
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/@gltf-transform/extensions/-/extensions-3.10.0.tgz#4ae11c3fe8e2a77e6e9dd04ebf0931c7b0cd3690"
-  integrity sha512-dz/cf2toBzP+w3ES2VgMiINCN6q86MVGu1lHkT0El4No77Bje9fnHVEPrKwaDCsXi5YXUiG/u6686vK6jePwDA==
+"@gltf-transform/extensions@^3.10.1":
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/@gltf-transform/extensions/-/extensions-3.10.1.tgz#71664389cae46fb12eb97dc71eb96d86a0d7801f"
+  integrity sha512-xUS9K5fMvW2dkYN4VzxHg2aBPG54M2WqgIjQ7RoSyybMoD7DsPUyMyVgRja+aiTVt/Bxza2ve7zJBD3+tN+aTA==
   dependencies:
-    "@gltf-transform/core" "^3.10.0"
+    "@gltf-transform/core" "^3.10.1"
     ktx-parse "^0.6.0"
 
-"@gltf-transform/functions@^3.10.0":
-  version "3.10.0"
-  resolved "https://registry.yarnpkg.com/@gltf-transform/functions/-/functions-3.10.0.tgz#bf0331c109ac948d19be7394d3afcfae84215cfd"
-  integrity sha512-FStbDaH7t2z74RyEeUQn3aBcybULbDkt72ZasC0s7DwQ2DFKKKOth4Zksi4g9+8URNM6vNa2JSfuO851dkJHEg==
+"@gltf-transform/functions@^3.10.1":
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/@gltf-transform/functions/-/functions-3.10.1.tgz#c40817740241c0ee770f4d1210ccc766e46d8ab2"
+  integrity sha512-Zs6+1qvTD9w40R5qv70E4wJXXacNQ46ZxjKKW6dmfGIyjT8bsSJmV3Tdj+WJ8R6lWXXZ8e2p3ZvAUfPDEG73bQ==
   dependencies:
-    "@gltf-transform/core" "^3.10.0"
-    "@gltf-transform/extensions" "^3.10.0"
+    "@gltf-transform/core" "^3.10.1"
+    "@gltf-transform/extensions" "^3.10.1"
     ktx-parse "^0.6.0"
     ndarray "^1.0.19"
     ndarray-lanczos "^0.3.0"
@@ -668,70 +668,70 @@
   resolved "https://registry.yarnpkg.com/@pkgjs/parseargs/-/parseargs-0.11.0.tgz#a77ea742fab25775145434eb1d2328cf5013ac33"
   integrity sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==
 
-"@rollup/rollup-android-arm-eabi@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-android-arm-eabi/-/rollup-android-arm-eabi-4.12.0.tgz#38c3abd1955a3c21d492af6b1a1dca4bb1d894d6"
-  integrity sha512-+ac02NL/2TCKRrJu2wffk1kZ+RyqxVUlbjSagNgPm94frxtr+XDL12E5Ll1enWskLrtrZ2r8L3wED1orIibV/w==
+"@rollup/rollup-android-arm-eabi@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-android-arm-eabi/-/rollup-android-arm-eabi-4.13.0.tgz#b98786c1304b4ff8db3a873180b778649b5dff2b"
+  integrity sha512-5ZYPOuaAqEH/W3gYsRkxQATBW3Ii1MfaT4EQstTnLKViLi2gLSQmlmtTpGucNP3sXEpOiI5tdGhjdE111ekyEg==
 
-"@rollup/rollup-android-arm64@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-android-arm64/-/rollup-android-arm64-4.12.0.tgz#3822e929f415627609e53b11cec9a4be806de0e2"
-  integrity sha512-OBqcX2BMe6nvjQ0Nyp7cC90cnumt8PXmO7Dp3gfAju/6YwG0Tj74z1vKrfRz7qAv23nBcYM8BCbhrsWqO7PzQQ==
+"@rollup/rollup-android-arm64@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-android-arm64/-/rollup-android-arm64-4.13.0.tgz#8833679af11172b1bf1ab7cb3bad84df4caf0c9e"
+  integrity sha512-BSbaCmn8ZadK3UAQdlauSvtaJjhlDEjS5hEVVIN3A4bbl3X+otyf/kOJV08bYiRxfejP3DXFzO2jz3G20107+Q==
 
-"@rollup/rollup-darwin-arm64@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-darwin-arm64/-/rollup-darwin-arm64-4.12.0.tgz#6c082de71f481f57df6cfa3701ab2a7afde96f69"
-  integrity sha512-X64tZd8dRE/QTrBIEs63kaOBG0b5GVEd3ccoLtyf6IdXtHdh8h+I56C2yC3PtC9Ucnv0CpNFJLqKFVgCYe0lOQ==
+"@rollup/rollup-darwin-arm64@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-darwin-arm64/-/rollup-darwin-arm64-4.13.0.tgz#ef02d73e0a95d406e0eb4fd61a53d5d17775659b"
+  integrity sha512-Ovf2evVaP6sW5Ut0GHyUSOqA6tVKfrTHddtmxGQc1CTQa1Cw3/KMCDEEICZBbyppcwnhMwcDce9ZRxdWRpVd6g==
 
-"@rollup/rollup-darwin-x64@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-darwin-x64/-/rollup-darwin-x64-4.12.0.tgz#c34ca0d31f3c46a22c9afa0e944403eea0edcfd8"
-  integrity sha512-cc71KUZoVbUJmGP2cOuiZ9HSOP14AzBAThn3OU+9LcA1+IUqswJyR1cAJj3Mg55HbjZP6OLAIscbQsQLrpgTOg==
+"@rollup/rollup-darwin-x64@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-darwin-x64/-/rollup-darwin-x64-4.13.0.tgz#3ce5b9bcf92b3341a5c1c58a3e6bcce0ea9e7455"
+  integrity sha512-U+Jcxm89UTK592vZ2J9st9ajRv/hrwHdnvyuJpa5A2ngGSVHypigidkQJP+YiGL6JODiUeMzkqQzbCG3At81Gg==
 
-"@rollup/rollup-linux-arm-gnueabihf@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm-gnueabihf/-/rollup-linux-arm-gnueabihf-4.12.0.tgz#48e899c1e438629c072889b824a98787a7c2362d"
-  integrity sha512-a6w/Y3hyyO6GlpKL2xJ4IOh/7d+APaqLYdMf86xnczU3nurFTaVN9s9jOXQg97BE4nYm/7Ga51rjec5nfRdrvA==
+"@rollup/rollup-linux-arm-gnueabihf@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm-gnueabihf/-/rollup-linux-arm-gnueabihf-4.13.0.tgz#3d3d2c018bdd8e037c6bfedd52acfff1c97e4be4"
+  integrity sha512-8wZidaUJUTIR5T4vRS22VkSMOVooG0F4N+JSwQXWSRiC6yfEsFMLTYRFHvby5mFFuExHa/yAp9juSphQQJAijQ==
 
-"@rollup/rollup-linux-arm64-gnu@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm64-gnu/-/rollup-linux-arm64-gnu-4.12.0.tgz#788c2698a119dc229062d40da6ada8a090a73a68"
-  integrity sha512-0fZBq27b+D7Ar5CQMofVN8sggOVhEtzFUwOwPppQt0k+VR+7UHMZZY4y+64WJ06XOhBTKXtQB/Sv0NwQMXyNAA==
+"@rollup/rollup-linux-arm64-gnu@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm64-gnu/-/rollup-linux-arm64-gnu-4.13.0.tgz#5fc8cc978ff396eaa136d7bfe05b5b9138064143"
+  integrity sha512-Iu0Kno1vrD7zHQDxOmvweqLkAzjxEVqNhUIXBsZ8hu8Oak7/5VTPrxOEZXYC1nmrBVJp0ZcL2E7lSuuOVaE3+w==
 
-"@rollup/rollup-linux-arm64-musl@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm64-musl/-/rollup-linux-arm64-musl-4.12.0.tgz#3882a4e3a564af9e55804beeb67076857b035ab7"
-  integrity sha512-eTvzUS3hhhlgeAv6bfigekzWZjaEX9xP9HhxB0Dvrdbkk5w/b+1Sxct2ZuDxNJKzsRStSq1EaEkVSEe7A7ipgQ==
+"@rollup/rollup-linux-arm64-musl@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm64-musl/-/rollup-linux-arm64-musl-4.13.0.tgz#f2ae7d7bed416ffa26d6b948ac5772b520700eef"
+  integrity sha512-C31QrW47llgVyrRjIwiOwsHFcaIwmkKi3PCroQY5aVq4H0A5v/vVVAtFsI1nfBngtoRpeREvZOkIhmRwUKkAdw==
 
-"@rollup/rollup-linux-riscv64-gnu@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-riscv64-gnu/-/rollup-linux-riscv64-gnu-4.12.0.tgz#0c6ad792e1195c12bfae634425a3d2aa0fe93ab7"
-  integrity sha512-ix+qAB9qmrCRiaO71VFfY8rkiAZJL8zQRXveS27HS+pKdjwUfEhqo2+YF2oI+H/22Xsiski+qqwIBxVewLK7sw==
+"@rollup/rollup-linux-riscv64-gnu@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-riscv64-gnu/-/rollup-linux-riscv64-gnu-4.13.0.tgz#303d57a328ee9a50c85385936f31cf62306d30b6"
+  integrity sha512-Oq90dtMHvthFOPMl7pt7KmxzX7E71AfyIhh+cPhLY9oko97Zf2C9tt/XJD4RgxhaGeAraAXDtqxvKE1y/j35lA==
 
-"@rollup/rollup-linux-x64-gnu@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-x64-gnu/-/rollup-linux-x64-gnu-4.12.0.tgz#9d62485ea0f18d8674033b57aa14fb758f6ec6e3"
-  integrity sha512-TenQhZVOtw/3qKOPa7d+QgkeM6xY0LtwzR8OplmyL5LrgTWIXpTQg2Q2ycBf8jm+SFW2Wt/DTn1gf7nFp3ssVA==
+"@rollup/rollup-linux-x64-gnu@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-x64-gnu/-/rollup-linux-x64-gnu-4.13.0.tgz#f672f6508f090fc73f08ba40ff76c20b57424778"
+  integrity sha512-yUD/8wMffnTKuiIsl6xU+4IA8UNhQ/f1sAnQebmE/lyQ8abjsVyDkyRkWop0kdMhKMprpNIhPmYlCxgHrPoXoA==
 
-"@rollup/rollup-linux-x64-musl@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-x64-musl/-/rollup-linux-x64-musl-4.12.0.tgz#50e8167e28b33c977c1f813def2b2074d1435e05"
-  integrity sha512-LfFdRhNnW0zdMvdCb5FNuWlls2WbbSridJvxOvYWgSBOYZtgBfW9UGNJG//rwMqTX1xQE9BAodvMH9tAusKDUw==
+"@rollup/rollup-linux-x64-musl@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-x64-musl/-/rollup-linux-x64-musl-4.13.0.tgz#d2f34b1b157f3e7f13925bca3288192a66755a89"
+  integrity sha512-9RyNqoFNdF0vu/qqX63fKotBh43fJQeYC98hCaf89DYQpv+xu0D8QFSOS0biA7cGuqJFOc1bJ+m2rhhsKcw1hw==
 
-"@rollup/rollup-win32-arm64-msvc@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-arm64-msvc/-/rollup-win32-arm64-msvc-4.12.0.tgz#68d233272a2004429124494121a42c4aebdc5b8e"
-  integrity sha512-JPDxovheWNp6d7AHCgsUlkuCKvtu3RB55iNEkaQcf0ttsDU/JZF+iQnYcQJSk/7PtT4mjjVG8N1kpwnI9SLYaw==
+"@rollup/rollup-win32-arm64-msvc@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-arm64-msvc/-/rollup-win32-arm64-msvc-4.13.0.tgz#8ffecc980ae4d9899eb2f9c4ae471a8d58d2da6b"
+  integrity sha512-46ue8ymtm/5PUU6pCvjlic0z82qWkxv54GTJZgHrQUuZnVH+tvvSP0LsozIDsCBFO4VjJ13N68wqrKSeScUKdA==
 
-"@rollup/rollup-win32-ia32-msvc@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-ia32-msvc/-/rollup-win32-ia32-msvc-4.12.0.tgz#366ca62221d1689e3b55a03f4ae12ae9ba595d40"
-  integrity sha512-fjtuvMWRGJn1oZacG8IPnzIV6GF2/XG+h71FKn76OYFqySXInJtseAqdprVTDTyqPxQOG9Exak5/E9Z3+EJ8ZA==
+"@rollup/rollup-win32-ia32-msvc@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-ia32-msvc/-/rollup-win32-ia32-msvc-4.13.0.tgz#a7505884f415662e088365b9218b2b03a88fc6f2"
+  integrity sha512-P5/MqLdLSlqxbeuJ3YDeX37srC8mCflSyTrUsgbU1c/U9j6l2g2GiIdYaGD9QjdMQPMSgYm7hgg0551wHyIluw==
 
-"@rollup/rollup-win32-x64-msvc@4.12.0":
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.12.0.tgz#9ffdf9ed133a7464f4ae187eb9e1294413fab235"
-  integrity sha512-ZYmr5mS2wd4Dew/JjT0Fqi2NPB/ZhZ2VvPp7SmvPZb4Y1CG/LRcS6tcRo2cYU7zLK5A7cdbhWnnWmUjoI4qapg==
+"@rollup/rollup-win32-x64-msvc@4.13.0":
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.13.0.tgz#6abd79db7ff8d01a58865ba20a63cfd23d9e2a10"
+  integrity sha512-UKXUQNbO3DOhzLRwHSpa0HnhhCgNODvfoPWv2FCXme8N/ANFfhIPMGuOT+QuKd16+B5yxZ0HdpNlqPvTMS1qfw==
 
 "@sigstore/bundle@^2.2.0":
   version "2.2.0"
@@ -777,10 +777,10 @@
     "@sigstore/core" "^1.0.0"
     "@sigstore/protobuf-specs" "^0.3.0"
 
-"@tsconfig/node20@^20.1.2":
-  version "20.1.2"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node20/-/node20-20.1.2.tgz#b93128c411d38e9507035255195bc8a6718541e3"
-  integrity sha512-madaWq2k+LYMEhmcp0fs+OGaLFk0OenpHa4gmI4VEmCKX4PJntQ6fnnGADVFrVkBj0wIdAlQnK/MrlYTHsa1gQ==
+"@tsconfig/node20@^20.1.3":
+  version "20.1.3"
+  resolved "https://registry.yarnpkg.com/@tsconfig/node20/-/node20-20.1.3.tgz#b3b4cf785e1b390a6ab48a68aa594a25960d2fe8"
+  integrity sha512-XeWn6Gms5MaQWdj+C4fuxuo/Icy8ckh+BwAIijhX2LKRHHt1OuctLLLlB0F4EPi55m2IUJNTnv8FH9kSBI7Ogw==
 
 "@tufjs/canonical-json@2.0.0":
   version "2.0.0"
@@ -795,6 +795,11 @@
     "@tufjs/canonical-json" "2.0.0"
     minimatch "^9.0.3"
 
+"@tweenjs/tween.js@~23.1.1":
+  version "23.1.1"
+  resolved "https://registry.yarnpkg.com/@tweenjs/tween.js/-/tween.js-23.1.1.tgz#0ae28ed9c635805557f78c2626464018d5f1b5e2"
+  integrity sha512-ZpboH7pCPPeyBWKf8c7TJswtCEQObFo3bOBYalm99NzZarATALYCo5OhbCa/n4RQyJyHfhkdx+hNrdL5ByFYDw==
+
 "@types/estree@1.0.5":
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/@types/estree/-/estree-1.0.5.tgz#a6ce3e556e00fd9895dd872dd172ad0d4bd687f4"
@@ -805,10 +810,10 @@
   resolved "https://registry.yarnpkg.com/@types/ndarray/-/ndarray-1.0.14.tgz#96b28c09a3587a76de380243f87bb7a2d63b4b23"
   integrity sha512-oANmFZMnFQvb219SSBIhI1Ih/r4CvHDOzkWyJS/XRqkMrGH5/kaPSA1hQhdIBzouaE+5KpE/f5ylI9cujmckQg==
 
-"@types/node@^20.11.24":
-  version "20.11.24"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.11.24.tgz#cc207511104694e84e9fb17f9a0c4c42d4517792"
-  integrity sha512-Kza43ewS3xoLgCEpQrsT+xRo/EJej1y0kVYGiLFE1NEODXGzTfwiC6tXTLMQskn1X4/Rjlh0MQUvx9W+L9long==
+"@types/node@^20.11.30":
+  version "20.11.30"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.11.30.tgz#9c33467fc23167a347e73834f788f4b9f399d66f"
+  integrity sha512-dHM6ZxwlmuZaRmUPfv1p+KrdD1Dci04FbdEm/9wEMouFqxYoFl5aMkt0VMAUtYRQDyYvD41WJLukhq/ha3YuTw==
   dependencies:
     undici-types "~5.26.4"
 
@@ -817,11 +822,12 @@
   resolved "https://registry.yarnpkg.com/@types/stats.js/-/stats.js-0.17.3.tgz#705446e12ce0fad618557dd88236f51148b7a935"
   integrity sha512-pXNfAD3KHOdif9EQXZ9deK82HVNaXP5ZIF5RP2QG6OQFNTaY2YIetfrE9t528vEreGQvEPRDDc8muaoYeK0SxQ==
 
-"@types/three@^0.160.0":
-  version "0.160.0"
-  resolved "https://registry.yarnpkg.com/@types/three/-/three-0.160.0.tgz#7915a97e0a14ccaa9ccbb9f190c5730b04a23075"
-  integrity sha512-jWlbUBovicUKaOYxzgkLlhkiEQJkhCVvg4W2IYD2trqD2om3VK4DGLpHH5zQHNr7RweZK/5re/4IVhbhvxbV9w==
+"@types/three@^0.162.0":
+  version "0.162.0"
+  resolved "https://registry.yarnpkg.com/@types/three/-/three-0.162.0.tgz#79d170c88f14b2eaee6b76af00fc4016a533e586"
+  integrity sha512-0j5yZcVukVIhrhSIC7+LmBPkkMoMuEJ1AfYBZfgNytdYqYREMuiyXWhYOMeZLBElTEAlJIZn7r2W3vqTIgjWlg==
   dependencies:
+    "@tweenjs/tween.js" "~23.1.1"
     "@types/stats.js" "*"
     "@types/webxr" "*"
     fflate "~0.6.10"
@@ -851,26 +857,26 @@
   resolved "https://registry.yarnpkg.com/@vitejs/plugin-vue/-/plugin-vue-5.0.4.tgz#508d6a0f2440f86945835d903fcc0d95d1bb8a37"
   integrity sha512-WS3hevEszI6CEVEx28F8RjTX97k3KsrcY6kvTg7+Whm5y3oYvcqzVeGCU3hxSAn4uY2CLCkeokkGKpoctccilQ==
 
-"@volar/language-core@2.1.0", "@volar/language-core@~2.1.0":
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/@volar/language-core/-/language-core-2.1.0.tgz#26953a62f5d956a4ba4003faf59ae09b2a8aabb6"
-  integrity sha512-BrYEgYHx92ocpt1OUxJs2x3TAXEjpPLxsQoARb96g2GdF62xnfRQUqCNBwiU7Z3MQ/0tOAdqdHNYNmrFtx6q4A==
+"@volar/language-core@2.1.5", "@volar/language-core@~2.1.3":
+  version "2.1.5"
+  resolved "https://registry.yarnpkg.com/@volar/language-core/-/language-core-2.1.5.tgz#78803531562ca423a3b4fa1b3a90d33537aab928"
+  integrity sha512-u1OHmVkCFsJqNdaM2GKuMhE67TxcEnOqJNF+VtYv2Ji8DnrUaF4FAFSNxY+MRGICl+873CsSJVKas9TQtW14LA==
   dependencies:
-    "@volar/source-map" "2.1.0"
+    "@volar/source-map" "2.1.5"
 
-"@volar/source-map@2.1.0":
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/@volar/source-map/-/source-map-2.1.0.tgz#f8c70b5043ae4a3d2cbd66a84036ef030b655a8e"
-  integrity sha512-VPyi+DTv67cvUOkUewzsOQJY3VUhjOjQxigT487z/H7tEI8ZFd5RksC5afk3JelOK+a/3Y8LRDbKmYKu1dz87g==
+"@volar/source-map@2.1.5":
+  version "2.1.5"
+  resolved "https://registry.yarnpkg.com/@volar/source-map/-/source-map-2.1.5.tgz#c073549368d399365f0024ed89aea93de0807328"
+  integrity sha512-GIkAM6fHgDcTXcdH4i10fAiAZzO0HLIer8/pt3oZ9A0n7n4R5d1b2F8Xxzh/pgmgNoL+SrHX3MFxs35CKgfmtA==
   dependencies:
     muggle-string "^0.4.0"
 
-"@volar/typescript@~2.1.0":
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/@volar/typescript/-/typescript-2.1.0.tgz#640abcdcb6b822f9860006d090e1d5252c655e37"
-  integrity sha512-2cicVoW4q6eU/omqfOBv+6r9JdrF5bBelujbJhayPNKiOj/xwotSJ/DM8IeMvTZvtkOZkm6suyOCLEokLY0w2w==
+"@volar/typescript@~2.1.3":
+  version "2.1.5"
+  resolved "https://registry.yarnpkg.com/@volar/typescript/-/typescript-2.1.5.tgz#756a8626af1c5ce3c9d8df3e79d49bfdd0adf39e"
+  integrity sha512-zo9a3NrNMSkufIvHuExDGTfYv+zO7C5p2wg8fyP7vcqF/Qo0ztjb0ZfOgq/A85EO/MBc1Kj2Iu7PaOBtP++NMw==
   dependencies:
-    "@volar/language-core" "2.1.0"
+    "@volar/language-core" "2.1.5"
     path-browserify "^1.0.1"
 
 "@vue/babel-helper-vue-transform-on@1.2.1":
@@ -948,12 +954,12 @@
     "@vue/compiler-dom" "3.4.21"
     "@vue/shared" "3.4.21"
 
-"@vue/language-core@2.0.3":
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/@vue/language-core/-/language-core-2.0.3.tgz#49e290c928b216a5b0f07012ff6e1065a6e15258"
-  integrity sha512-hnVF/Q3cD2v+EFD4pD1YdITGBcdM38P18SYqilVQDezKw5RobWny4BwIckWGS1fJmUstsO9mTX30ZOyzyR2Q+Q==
+"@vue/language-core@2.0.7":
+  version "2.0.7"
+  resolved "https://registry.yarnpkg.com/@vue/language-core/-/language-core-2.0.7.tgz#af12f752a93c4d2498626fca33f5d1ddc8c5ceb9"
+  integrity sha512-Vh1yZX3XmYjn9yYLkjU8DN6L0ceBtEcapqiyclHne8guG84IaTzqtvizZB1Yfxm3h6m7EIvjerLO5fvOZO6IIQ==
   dependencies:
-    "@volar/language-core" "~2.1.0"
+    "@volar/language-core" "~2.1.3"
     "@vue/compiler-dom" "^3.4.0"
     "@vue/shared" "^3.4.0"
     computeds "^0.0.1"
@@ -1481,34 +1487,34 @@ error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-esbuild@^0.19.3:
-  version "0.19.12"
-  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.19.12.tgz#dc82ee5dc79e82f5a5c3b4323a2a641827db3e04"
-  integrity sha512-aARqgq8roFBj054KvQr5f1sFu0D65G+miZRCuJyJ0G13Zwx7vRar5Zhn2tkQNzIXcBrNVsv/8stehpj+GAjgbg==
+esbuild@^0.20.1:
+  version "0.20.2"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.20.2.tgz#9d6b2386561766ee6b5a55196c6d766d28c87ea1"
+  integrity sha512-WdOOppmUNU+IbZ0PaDiTst80zjnrOkyJNHoKupIcVyU8Lvla3Ugx94VzkQ32Ijqd7UhHJy75gNWDMUekcrSJ6g==
   optionalDependencies:
-    "@esbuild/aix-ppc64" "0.19.12"
-    "@esbuild/android-arm" "0.19.12"
-    "@esbuild/android-arm64" "0.19.12"
-    "@esbuild/android-x64" "0.19.12"
-    "@esbuild/darwin-arm64" "0.19.12"
-    "@esbuild/darwin-x64" "0.19.12"
-    "@esbuild/freebsd-arm64" "0.19.12"
-    "@esbuild/freebsd-x64" "0.19.12"
-    "@esbuild/linux-arm" "0.19.12"
-    "@esbuild/linux-arm64" "0.19.12"
-    "@esbuild/linux-ia32" "0.19.12"
-    "@esbuild/linux-loong64" "0.19.12"
-    "@esbuild/linux-mips64el" "0.19.12"
-    "@esbuild/linux-ppc64" "0.19.12"
-    "@esbuild/linux-riscv64" "0.19.12"
-    "@esbuild/linux-s390x" "0.19.12"
-    "@esbuild/linux-x64" "0.19.12"
-    "@esbuild/netbsd-x64" "0.19.12"
-    "@esbuild/openbsd-x64" "0.19.12"
-    "@esbuild/sunos-x64" "0.19.12"
-    "@esbuild/win32-arm64" "0.19.12"
-    "@esbuild/win32-ia32" "0.19.12"
-    "@esbuild/win32-x64" "0.19.12"
+    "@esbuild/aix-ppc64" "0.20.2"
+    "@esbuild/android-arm" "0.20.2"
+    "@esbuild/android-arm64" "0.20.2"
+    "@esbuild/android-x64" "0.20.2"
+    "@esbuild/darwin-arm64" "0.20.2"
+    "@esbuild/darwin-x64" "0.20.2"
+    "@esbuild/freebsd-arm64" "0.20.2"
+    "@esbuild/freebsd-x64" "0.20.2"
+    "@esbuild/linux-arm" "0.20.2"
+    "@esbuild/linux-arm64" "0.20.2"
+    "@esbuild/linux-ia32" "0.20.2"
+    "@esbuild/linux-loong64" "0.20.2"
+    "@esbuild/linux-mips64el" "0.20.2"
+    "@esbuild/linux-ppc64" "0.20.2"
+    "@esbuild/linux-riscv64" "0.20.2"
+    "@esbuild/linux-s390x" "0.20.2"
+    "@esbuild/linux-x64" "0.20.2"
+    "@esbuild/netbsd-x64" "0.20.2"
+    "@esbuild/openbsd-x64" "0.20.2"
+    "@esbuild/sunos-x64" "0.20.2"
+    "@esbuild/win32-arm64" "0.20.2"
+    "@esbuild/win32-ia32" "0.20.2"
+    "@esbuild/win32-x64" "0.20.2"
 
 escalade@^3.1.1:
   version "3.1.2"
@@ -2410,14 +2416,14 @@ postcss-selector-parser@^6.0.10:
     cssesc "^3.0.0"
     util-deprecate "^1.0.2"
 
-postcss@^8.4.35:
-  version "8.4.35"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.35.tgz#60997775689ce09011edf083a549cea44aabe2f7"
-  integrity sha512-u5U8qYpBCpN13BsiEB0CbR1Hhh4Gc0zLFuedrHJKMctHCHAGrMdG0PRM/KErzAL3CU6/eckEtmHNB3x6e3c0vA==
+postcss@^8.4.35, postcss@^8.4.36:
+  version "8.4.38"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.38.tgz#b387d533baf2054288e337066d81c6bee9db9e0e"
+  integrity sha512-Wglpdk03BSfXkHoQa3b/oulrotAkwrlLDRSOb9D0bN86FdRyE9lppSp33aHNPgBa0JKCoB+drFLZkQoRRYae5A==
   dependencies:
     nanoid "^3.3.7"
     picocolors "^1.0.0"
-    source-map-js "^1.0.2"
+    source-map-js "^1.2.0"
 
 prebuild-install@^7.1.1:
   version "7.1.2"
@@ -2551,26 +2557,26 @@ retry@^0.12.0:
   resolved "https://registry.yarnpkg.com/retry/-/retry-0.12.0.tgz#1b42a6266a21f07421d1b0b54b7dc167b01c013b"
   integrity sha512-9LkiTwjUh6rT555DtE9rTX+BKByPfrMzEAtnlEtdEwr3Nkffwiihqe2bWADg+OQRjt9gl6ICdmB/ZFDCGAtSow==
 
-rollup@^4.2.0:
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-4.12.0.tgz#0b6d1e5f3d46bbcf244deec41a7421dc54cc45b5"
-  integrity sha512-wz66wn4t1OHIJw3+XU7mJJQV/2NAfw5OAk6G6Hoo3zcvz/XOfQ52Vgi+AN4Uxoxi0KBBwk2g8zPrTDA4btSB/Q==
+rollup@^4.13.0:
+  version "4.13.0"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-4.13.0.tgz#dd2ae144b4cdc2ea25420477f68d4937a721237a"
+  integrity sha512-3YegKemjoQnYKmsBlOHfMLVPPA5xLkQ8MHLLSw/fBrFaVkEayL51DilPpNNLq1exr98F2B1TzrV0FUlN3gWRPg==
   dependencies:
     "@types/estree" "1.0.5"
   optionalDependencies:
-    "@rollup/rollup-android-arm-eabi" "4.12.0"
-    "@rollup/rollup-android-arm64" "4.12.0"
-    "@rollup/rollup-darwin-arm64" "4.12.0"
-    "@rollup/rollup-darwin-x64" "4.12.0"
-    "@rollup/rollup-linux-arm-gnueabihf" "4.12.0"
-    "@rollup/rollup-linux-arm64-gnu" "4.12.0"
-    "@rollup/rollup-linux-arm64-musl" "4.12.0"
-    "@rollup/rollup-linux-riscv64-gnu" "4.12.0"
-    "@rollup/rollup-linux-x64-gnu" "4.12.0"
-    "@rollup/rollup-linux-x64-musl" "4.12.0"
-    "@rollup/rollup-win32-arm64-msvc" "4.12.0"
-    "@rollup/rollup-win32-ia32-msvc" "4.12.0"
-    "@rollup/rollup-win32-x64-msvc" "4.12.0"
+    "@rollup/rollup-android-arm-eabi" "4.13.0"
+    "@rollup/rollup-android-arm64" "4.13.0"
+    "@rollup/rollup-darwin-arm64" "4.13.0"
+    "@rollup/rollup-darwin-x64" "4.13.0"
+    "@rollup/rollup-linux-arm-gnueabihf" "4.13.0"
+    "@rollup/rollup-linux-arm64-gnu" "4.13.0"
+    "@rollup/rollup-linux-arm64-musl" "4.13.0"
+    "@rollup/rollup-linux-riscv64-gnu" "4.13.0"
+    "@rollup/rollup-linux-x64-gnu" "4.13.0"
+    "@rollup/rollup-linux-x64-musl" "4.13.0"
+    "@rollup/rollup-win32-arm64-msvc" "4.13.0"
+    "@rollup/rollup-win32-ia32-msvc" "4.13.0"
+    "@rollup/rollup-win32-x64-msvc" "4.13.0"
     fsevents "~2.3.2"
 
 safe-buffer@^5.0.1, safe-buffer@~5.2.0:
@@ -2701,6 +2707,11 @@ source-map-js@^1.0.2:
   resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.0.2.tgz#adbc361d9c62df380125e7f161f71c826f1e490c"
   integrity sha512-R0XvVJ9WusLiqTCEiGCmICCMplcCkIwwR11mOSD9CR5u+IXYdiseeEuXCVAjS54zqwkLcPNnmU4OeJ6tUrWhDw==
 
+source-map-js@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/source-map-js/-/source-map-js-1.2.0.tgz#16b809c162517b5b8c3e7dcd315a2a5c2612b2af"
+  integrity sha512-itJW8lvSA0TXEphiRoawsCksnlf8SyvmFzIhltqAHluXd88pkCd+cXJVHTDwdCr0IzwptSm035IHQktUu1QUMg==
+
 source-map-support@~0.5.20:
   version "0.5.21"
   resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.21.tgz#04fe7c7f9e1ed2d662233c28cb2b35b9f63f6e4f"
@@ -2878,16 +2889,21 @@ tar@^6.1.11, tar@^6.1.2:
     mkdirp "^1.0.3"
     yallist "^4.0.0"
 
-terser@^5.28.1:
-  version "5.28.1"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-5.28.1.tgz#bf00f7537fd3a798c352c2d67d67d65c915d1b28"
-  integrity sha512-wM+bZp54v/E9eRRGXb5ZFDvinrJIOaTapx3WUokyVGZu5ucVCK55zEgGd5Dl2fSr3jUo5sDiERErUWLY6QPFyA==
+terser@^5.29.2:
+  version "5.29.2"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-5.29.2.tgz#c17d573ce1da1b30f21a877bffd5655dd86fdb35"
+  integrity sha512-ZiGkhUBIM+7LwkNjXYJq8svgkd+QK3UUr0wJqY4MieaezBSAIPgbSPZyIx0idM6XWK5CMzSWa8MJIzmRcB8Caw==
   dependencies:
     "@jridgewell/source-map" "^0.3.3"
     acorn "^8.8.2"
     commander "^2.20.0"
     source-map-support "~0.5.20"
 
+three-mesh-bvh@^0.7.3:
+  version "0.7.3"
+  resolved "https://registry.yarnpkg.com/three-mesh-bvh/-/three-mesh-bvh-0.7.3.tgz#91f2d7e26f230288b5b0a6bdf41bdd9620348945"
+  integrity sha512-3W6KjzmupjfE89GuHPT31kxKWZ4YGZPEZJNysJpiOZfQRsBQQgmK7v/VJPpjG6syhAvTnY+5Fr77EvIkTLpGSw==
+
 "three-orientation-gizmo@https://github.com/jrj2211/three-orientation-gizmo":
   version "1.1.0"
   resolved "https://github.com/jrj2211/three-orientation-gizmo#000281f0559c316f72cdd23a1885d63ae6901095"
@@ -2899,10 +2915,10 @@ three@^0.125.0:
   resolved "https://registry.yarnpkg.com/three/-/three-0.125.2.tgz#dcba12749a2eb41522e15212b919cd3fbf729b12"
   integrity sha512-7rIRO23jVKWcAPFdW/HREU2NZMGWPBZ4XwEMt0Ak0jwLUKVJhcKM55eCBWyGZq/KiQbeo1IeuAoo/9l2dzhTXA==
 
-three@^0.160.1:
-  version "0.160.1"
-  resolved "https://registry.yarnpkg.com/three/-/three-0.160.1.tgz#61fe2907312e8604b1f64187f58e047503847413"
-  integrity sha512-Bgl2wPJypDOZ1stAxwfWAcJ0WQf7QzlptsxkjYiURPz+n5k4RBDLsq+6f9Y75TYxn6aHLcWz+JNmwTOXWrQTBQ==
+three@^0.162.0:
+  version "0.162.0"
+  resolved "https://registry.yarnpkg.com/three/-/three-0.162.0.tgz#b15a511f1498e0c42d4d00bbb411c7527b06097e"
+  integrity sha512-xfCYj4RnlozReCmUd+XQzj6/5OjDNHBy5nT6rVwrOKGENAvpXe2z1jL+DZYaMu4/9pNsjH/4Os/VvS9IrH7IOQ==
 
 to-fast-properties@^2.0.0:
   version "2.0.0"
@@ -2935,10 +2951,10 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
-typescript@~5.3.0:
-  version "5.3.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.3.3.tgz#b3ce6ba258e72e6305ba66f5c9b452aaee3ffe37"
-  integrity sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==
+typescript@~5.4.3:
+  version "5.4.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.4.3.tgz#5c6fedd4c87bee01cd7a528a30145521f8e0feff"
+  integrity sha512-KrPd3PKaCLr78MalgiwJnA25Nm8HAmdwN3mYUYZgG/wizIo9EainNVQI9/yDavtVFRN2h3k8uf3GLHuhDMgEHg==
 
 undici-types@~5.26.4:
   version "5.26.5"
@@ -2992,14 +3008,14 @@ validate-npm-package-name@^5.0.0:
   dependencies:
     builtins "^5.0.0"
 
-vite@^5.0.11:
-  version "5.1.4"
-  resolved "https://registry.yarnpkg.com/vite/-/vite-5.1.4.tgz#14e9d3e7a6e488f36284ef13cebe149f060bcfb6"
-  integrity sha512-n+MPqzq+d9nMVTKyewqw6kSt+R3CkvF9QAKY8obiQn8g1fwTscKxyfaYnC632HtBXAQGc1Yjomphwn1dtwGAHg==
+vite@^5.2.6:
+  version "5.2.6"
+  resolved "https://registry.yarnpkg.com/vite/-/vite-5.2.6.tgz#fc2ce309e0b4871e938cb0aca3b96c422c01f222"
+  integrity sha512-FPtnxFlSIKYjZ2eosBQamz4CbyrTizbZ3hnGJlh/wMtCrlp1Hah6AzBLjGI5I2urTfNnpovpHdrL6YRuBOPnCA==
   dependencies:
-    esbuild "^0.19.3"
-    postcss "^8.4.35"
-    rollup "^4.2.0"
+    esbuild "^0.20.1"
+    postcss "^8.4.36"
+    rollup "^4.13.0"
   optionalDependencies:
     fsevents "~2.3.3"
 
@@ -3011,13 +3027,13 @@ vue-template-compiler@^2.7.14:
     de-indent "^1.0.2"
     he "^1.2.0"
 
-vue-tsc@^2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/vue-tsc/-/vue-tsc-2.0.3.tgz#9b736f6ad478a5c98a23aeef509eb0b73d115b26"
-  integrity sha512-aMJqbgLiKDAwAglWqMoGf1Ez6Wwqhlk2MDxEjFGziiLW0A+tHOWE1+YQJZQ1Vm6zaENPA2KJAubFhaR988UvGg==
+vue-tsc@^2.0.7:
+  version "2.0.7"
+  resolved "https://registry.yarnpkg.com/vue-tsc/-/vue-tsc-2.0.7.tgz#3177a2fe720bfa7355d3717929ee8c8d132bc5d0"
+  integrity sha512-LYa0nInkfcDBB7y8jQ9FQ4riJTRNTdh98zK/hzt4gEpBZQmf30dPhP+odzCa+cedGz6B/guvJEd0BavZaRptjg==
   dependencies:
-    "@volar/typescript" "~2.1.0"
-    "@vue/language-core" "2.0.3"
+    "@volar/typescript" "~2.1.3"
+    "@vue/language-core" "2.0.7"
     semver "^7.5.4"
 
 vue@^3.4.21:
@@ -3031,10 +3047,10 @@ vue@^3.4.21:
     "@vue/server-renderer" "3.4.21"
     "@vue/shared" "3.4.21"
 
-vuetify@^3.5.7:
-  version "3.5.7"
-  resolved "https://registry.yarnpkg.com/vuetify/-/vuetify-3.5.7.tgz#9dfa027a582aa7d2211c8019c33ef7cadd66c5c0"
-  integrity sha512-BFj/puY8odRwY50pRfE1gpawnxreY8PtPb/tDw3oumxSLXhoXw8q6YLA6QUvqZrYEzcYpojxZIYhNWUky2KN1w==
+vuetify@^3.5.11:
+  version "3.5.11"
+  resolved "https://registry.yarnpkg.com/vuetify/-/vuetify-3.5.11.tgz#9e5b628544e736de0b7f236b704539d544588152"
+  integrity sha512-us5I0jyFwIQYG4v41PFmVMkoc/oJddVT4C2RFjJTI99ttigbQ92gsTeG5SB8BPfmfnUS4paR5BedZwk6W3KlJw==
 
 walk-up-path@^3.0.1:
   version "3.0.1"