Automatically update version to 0.8.8

Bumps [@tsconfig/node20](https://github.com/tsconfig/bases/tree/HEAD/bases) from 20.1.3 to 20.1.4.
- [Commits](https://github.com/tsconfig/bases/commits/HEAD/bases)

---
updated-dependencies:
- dependency-name: "@tsconfig/node20"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

.github/workflows/autoupdate.yml

@@ -15,7 +15,7 @@ jobs:
       # will not occur.
       - name: "Dependabot metadata"
         id: "dependabot-metadata"
-        uses: "dependabot/fetch-metadata@v1"
+        uses: "dependabot/fetch-metadata@v2"
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
       # Here the PR gets approved.

.github/workflows/deploy2.yml

@@ -40,7 +40,7 @@ jobs:
             mv "$dir/"* public/
             rmdir "$dir"
           done
-      - uses: "actions/configure-pages@v4"
+      - uses: "actions/configure-pages@v5"
       - uses: "actions/upload-pages-artifact@v3"
         with:
           path: 'public'

README.md

@@ -10,19 +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: just upload the viewer and models to your 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
 
 The [example](example) is a fully working project that shows how to use the viewer.
 
 You can play with the latest
-demo [here](https://yeicor-3d.github.io/yet-another-cad-viewer/?preload=base.glb&preload=fox.glb&preload=img.jpg.glb&preload=location.glb)
+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=base.glb&preload=fox.glb&preload=img.jpg.glb&preload=location.glb)).
+[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/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.
@@ -1290,7 +1291,7 @@ third-party archives.
 
 The following npm package may be included in this product:
 
- - typescript@5.4.2
+ - typescript@5.4.3
 
 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
@@ -2408,7 +2439,7 @@ THE SOFTWARE.
 
 The following npm package may be included in this product:
 
- - vuetify@3.5.8
+ - vuetify@3.5.13
 
 This package contains 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/core@3.10.1
- - @gltf-transform/extensions@3.10.0
+ - @gltf-transform/extensions@3.10.1
- - @gltf-transform/functions@3.10.0
+ - @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:
 

example/object.py

@@ -18,6 +18,7 @@ with BuildPart() as example:
 # Show it in the frontend with hot-reloading
 show(example)
 
+
 # %%
 
 # If running on CI, export the objects to .glb files for a static deployment

frontend/App.vue

@@ -1,13 +1,13 @@
 <!--suppress SillyAssignmentJS -->
-<script setup lang="ts">
+<script lang="ts" setup>
-import {defineAsyncComponent, provide, type Ref, ref, shallowRef, triggerRef} from "vue";
+import {defineAsyncComponent, provide, type Ref, ref, shallowRef, triggerRef, watch} from "vue";
 import Sidebar from "./misc/Sidebar.vue";
 import Loading from "./misc/Loading.vue";
 import Tools from "./tools/Tools.vue";
 import Models from "./models/Models.vue";
 import {VBtn, VLayout, VMain, VToolbarTitle} from "vuetify/lib/components/index.mjs";
 import {settings} from "./misc/settings";
-import {NetworkManager, NetworkUpdateEvent} from "./misc/network";
+import {NetworkManager, NetworkUpdateEvent, NetworkUpdateEventModel} from "./misc/network";
 import {SceneMgr} from "./misc/scene";
 import {Document} from "@gltf-transform/core";
 import type ModelViewerWrapperT from "./viewer/ModelViewerWrapper.vue";
@@ -28,39 +28,67 @@ const viewer: Ref<InstanceType<typeof ModelViewerWrapperT> | null> = ref(null);
 const sceneDocument = shallowRef(new Document());
 provide('sceneDocument', {sceneDocument});
 const models: Ref<InstanceType<typeof Models> | null> = ref(null)
+const tools: Ref<InstanceType<typeof Tools> | null> = ref(null)
 const disableTap = ref(false);
 const setDisableTap = (val: boolean) => disableTap.value = val;
 provide('disableTap', {disableTap, setDisableTap});
 
 async function onModelUpdateRequest(event: NetworkUpdateEvent) {
+  // Trigger progress bar as soon as possible (also triggered earlier for each raw notification)
+  if (viewer.value && event.models.length > 0) {
+    viewer.value.onProgress(0.10);
+  }
   // 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];
+    tools.value?.removeObjectSelections(model.name);
+    try {
       if (!model.isRemove) {
-      doc = await SceneMgr.loadModel(sceneUrl, doc, model.name, model.url, isLast, isLast);
+        doc = await SceneMgr.loadModel(sceneUrl, doc, model.name, model.url, isLast && settings.loadHelpers, isLast);
       } else {
-      doc = await SceneMgr.removeModel(sceneUrl, doc, model.name, isLast);
+        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?
 }
 
 async function onModelRemoveRequest(name: string) {
-  sceneDocument.value = await SceneMgr.removeModel(sceneUrl, sceneDocument.value, name);
+  await onModelUpdateRequest(new NetworkUpdateEvent([new NetworkUpdateEventModel(name, "", null, true)], () => {
-  triggerRef(sceneDocument); // Why not triggered automatically?
+  }));
 }
 
 // Set up the load model event listener
 let networkMgr = new NetworkManager();
+networkMgr.addEventListener('update-early',
+    (e) => viewer.value?.onProgress((e as CustomEvent<Array<any>>).detail.length * 0.01));
 networkMgr.addEventListener('update', (e) => onModelUpdateRequest(e as NetworkUpdateEvent));
 // Start loading all configured models ASAP
 for (let model of settings.preload) {
   networkMgr.load(model);
 }
+watch(viewer, (newViewer) => {
+  if (newViewer) {
+    newViewer.setPosterText('<tspan x="50%" dy="1.2em">Trying to load' +
+        ' models from:</tspan>' + settings.preload.map((url) => '<tspan x="50%" dy="1.2em">- ' + url + '</tspan>').join(""));
+  }
+});
 
 async function loadModelManual() {
   const modelUrl = prompt("For an improved experience in viewing CAD/GLTF models with automatic updates, it's recommended to use the official yacv_server Python package. This ensures seamless serving of models and automatic updates.\n\nOtherwise, enter the URL of the model to load:");
@@ -77,24 +105,24 @@ async function loadModelManual() {
     </v-main>
 
     <!-- The left collapsible sidebar has the list of models -->
-    <sidebar :opened-init="openSidebarsByDefault" side="left" :width="300">
+    <sidebar :opened-init="openSidebarsByDefault" :width="300" side="left">
       <template #toolbar>
         <v-toolbar-title>Models</v-toolbar-title>
       </template>
       <template #toolbar-items>
         <v-btn icon="" @click="loadModelManual">
-          <svg-icon type="mdi" :path="mdiPlus"/>
+          <svg-icon :path="mdiPlus" type="mdi"/>
         </v-btn>
       </template>
       <models ref="models" :viewer="viewer" @remove="onModelRemoveRequest"/>
     </sidebar>
 
     <!-- The right collapsible sidebar has the list of tools -->
-    <sidebar :opened-init="openSidebarsByDefault" side="right" :width="48 * 3 /* buttons */ + 1 /* border? */">
+    <sidebar :opened-init="openSidebarsByDefault" :width="48 * 3 /* buttons */ + 1 /* border? */" side="right">
       <template #toolbar>
         <v-toolbar-title>Tools</v-toolbar-title>
       </template>
-      <tools :viewer="viewer" @findModel="(name) => models?.findModel(name)"/>
+      <tools ref="tools" :viewer="viewer" @findModel="(name) => models?.findModel(name)"/>
     </sidebar>
 
   </v-layout>

frontend/misc/Loading.vue

@@ -1,5 +1,5 @@
-<script setup lang="ts">
+<script lang="ts" setup>
-import {VContainer, VRow, VCol, VProgressCircular} from "vuetify/lib/components/index.mjs";
+import {VCol, VContainer, VProgressCircular, VRow} from "vuetify/lib/components/index.mjs";
 </script>
 
 <template>

frontend/misc/Sidebar.vue

@@ -1,4 +1,4 @@
-<script setup lang="ts">
+<script lang="ts" setup>
 import {ref} from "vue";
 import {VBtn, VNavigationDrawer, VToolbar, VToolbarItems} from "vuetify/lib/components/index.mjs";
 import {mdiChevronLeft, mdiChevronRight, mdiClose} from '@mdi/js'
@@ -16,22 +16,22 @@ const openIcon = props.side === 'left' ? mdiChevronRight : mdiChevronLeft;
 </script>
 
 <template>
-  <v-btn icon @click="opened = !opened" class="open-button" :class="side">
+  <v-btn :class="side" class="open-button" icon @click="opened = !opened">
-    <svg-icon type="mdi" :path="openIcon"/>
+    <svg-icon :path="openIcon" type="mdi"/>
   </v-btn>
-  <v-navigation-drawer v-model="opened" permanent :location="side" :width="props.width">
+  <v-navigation-drawer v-model="opened" :location="side" :width="props.width" permanent>
     <v-toolbar density="compact">
       <v-toolbar-items v-if="side == 'right'">
         <slot name="toolbar-items"></slot>
         <v-btn icon @click="opened = !opened">
-          <svg-icon type="mdi" :path="mdiClose"/>
+          <svg-icon :path="mdiClose" type="mdi"/>
         </v-btn>
       </v-toolbar-items>
       <slot name="toolbar"></slot>
       <v-toolbar-items v-if="side == 'left'">
         <slot name="toolbar-items"></slot>
         <v-btn icon @click="opened = !opened">
-          <svg-icon type="mdi" :path="mdiClose"/>
+          <svg-icon :path="mdiClose" type="mdi"/>
         </v-btn>
       </v-toolbar-items>
     </v-toolbar>

frontend/misc/distances.ts

@@ -1,16 +1,16 @@
 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 = selInfo.object.geometry.getAttribute('position');
-    let pos: BufferAttribute | InterleavedBufferAttribute = obj.geometry.getAttribute('position');
+    let ind: BufferAttribute | null = selInfo.object.geometry.index;
-    let ind: BufferAttribute | null = obj.geometry.index;
+    if (ind === null) {
-    if (!ind) {
         ind = new BufferAttribute(new Uint16Array(pos.count), 1);
         for (let i = 0; i < pos.count; i++) {
             ind.array[i] = i;
@@ -18,14 +18,14 @@ function getCenterAndVertexList(obj: MObject3D, scene: ModelScene): {
     }
     let center = new Vector3();
     let vertices = [];
-    for (let i = 0; i < ind.count; i++) {
+    for (let i = selInfo.indices[0]; i < selInfo.indices[1]; i++) {
-        let index = ind.array[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);
+    center = center.divideScalar(selInfo.indices[1] - selInfo.indices[0]);
     return {center, vertices};
 }
 
@@ -33,7 +33,7 @@ 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>

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 +12,41 @@ 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 = null;
+    let alreadyTried: { [name: string]: boolean } = {}
+    while (newDoc == null) { // Retry adding extensions as required until the document is loaded
+        try { // Try to load fast if no extensions are used
+            newDoc = await io.readBinary(new Uint8Array(buffer));
+        } catch (e) { // Fallback to wait for download and register big extensions
+            if (e instanceof Error && e.message.toLowerCase().includes("khr_draco_mesh_compression")) {
+                if (alreadyTried["draco"]) throw e; else alreadyTried["draco"] = true;
+                // WARNING: Draco decompression on web is really slow for non-trivial models! (it should work?)
+                let {KHRDracoMeshCompression} = await import("@gltf-transform/extensions")
+                let dracoDecoderWeb = await import("three/examples/jsm/libs/draco/draco_decoder.js");
+                let dracoEncoderWeb = await import("three/examples/jsm/libs/draco/draco_encoder.js");
+                io.registerExtensions([KHRDracoMeshCompression])
+                    .registerDependencies({
+                        'draco3d.decoder': await dracoDecoderWeb.default({}),
+                        'draco3d.encoder': await dracoEncoderWeb.default({})
+                    });
+            } else if (e instanceof Error && e.message.toLowerCase().includes("ext_texture_webp")) {
+                if (alreadyTried["webp"]) throw e; else alreadyTried["webp"] = true;
+                let {EXTTextureWebP} = await import("@gltf-transform/extensions")
+                io.registerExtensions([EXTTextureWebP]);
+            } else { // TODO: Add more extensions as required
+                throw e;
+            }
+        }
+    }
 
     // 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, size.x, 0, 0,
-        [0, 0, 0, 0, size.y, 0],
+        0, 0, 0, 0, size.y, 0,
-        [0, 0, 0, 0, 0, -size.z],
+        0, 0, 0, 0, 0, -size.z,
     ];
-    let rawIndices = [0, 1];
     let rawColors = [
-        [...(AxesColors.x[0]), ...(AxesColors.x[1])],
+        ...(AxesColors.x[0]), 255, ...(AxesColors.x[1]), 255,
-        [...(AxesColors.y[0]), ...(AxesColors.y[1])],
+        ...(AxesColors.y[0]), 255, ...(AxesColors.y[1]), 255,
-        [...(AxesColors.z[0]), ...(AxesColors.z[1])],
+        ...(AxesColors.z[0]), 255, ...(AxesColors.z[1]), 255
-    ].map(g => g.map(x => x / 255.0));
+    ].map(x => x / 255.0);
-    buildSimpleGltf(doc, rawPositions[0], rawIndices, rawColors[0], transform, '__helper_axes');
+    // Axes at (0, 0, 0)
-    buildSimpleGltf(doc, rawPositions[1], rawIndices, rawColors[1], transform, '__helper_axes');
+    buildSimpleGltf(doc, rawPositions, rawIndices, rawColors, new Matrix4(), '__helper_axes');
-    buildSimpleGltf(doc, rawPositions[2], rawIndices, rawColors[2], transform, '__helper_axes');
+    buildSimpleGltf(doc, [0, 0, 0], [0], [1, 1, 1, 1], new Matrix4(), '__helper_axes', WebGL2RenderingContext.POINTS);
-    buildSimpleGltf(doc, [0, 0, 0], [0], null, transform, '__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);
+            let transform = new Matrix4().multiply(translation).multiply(rotation);
-            newGridPlane(doc, size2, transform, divisions);
+            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

@@ -2,27 +2,29 @@ import {settings} from "./settings";
 
 const batchTimeout = 250; // ms
 
-class NetworkUpdateEventModel {
+export class NetworkUpdateEventModel {
     name: string;
     url: string;
     // TODO: Detect and manage instances of the same object (same hash, different name)
     hash: string | null;
-    isRemove: boolean;
+    isRemove: boolean | null; // This is null for a shutdown event
 
-    constructor(name: string, url: string, hash: string | null, isDelete: boolean) {
+    constructor(name: string, url: string, hash: string | null, isRemove: boolean | null) {
         this.name = name;
         this.url = url;
         this.hash = hash;
-        this.isRemove = isDelete;
+        this.isRemove = isRemove;
     }
 }
 
 export class NetworkUpdateEvent extends Event {
     models: NetworkUpdateEventModel[];
+    disconnect: () => void;
 
-    constructor(models: NetworkUpdateEventModel[]) {
+    constructor(models: NetworkUpdateEventModel[], disconnect: () => void) {
         super("update");
         this.models = models;
+        this.disconnect = disconnect;
     }
 }
 
@@ -57,49 +59,82 @@ export class NetworkManager extends EventTarget {
         }
     }
 
-    private async monitorDevServer(url: URL) {
+    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
-            let response = await fetch(url.toString());
+                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 = JSON.parse(line.slice(5));
+                        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);
+                        this.foundModel(data.name, data.hash, urlObj.toString(), data.is_remove, async () => {
+                            controller.abort(); // Notify the server that we are done
+                        });
                     }
+                } else {
+                    // Server is down, wait a little longer before retrying
+                    await new Promise(resolve => setTimeout(resolve, 10 * settings.monitorEveryMs));
                 }
+                controller.abort();
             } catch (e) { // Ignore errors (retry very soon)
             }
-        setTimeout(() => this.monitorDevServer(url), settings.monitorEveryMs);
+            await new Promise(resolve => setTimeout(resolve, settings.monitorEveryMs));
-        return;
+        }
     }
 
-    private foundModel(name: string, hash: string | null, url: string, isRemove: boolean) {
+    private foundModel(name: string, hash: string | null, url: string, isRemove: boolean | null, disconnect: () => void = () => {
-        let prevHash = this.knownObjectHashes[name];
+    }) {
-        // console.debug("Found model", name, "with hash", hash, "and previous hash", prevHash);
+        // console.debug("Found model", name, "with hash", hash, "at", url, "isRemove", isRemove);
-        if (!hash || hash !== prevHash || isRemove) {
+
-            if (!isRemove) {
+        // We only care about the latest update per model name
-                this.knownObjectHashes[name] = hash;
+        this.bufferedUpdates = this.bufferedUpdates.filter(m => m.name !== name);
-            } else {
+
-                delete this.knownObjectHashes[name];
+        // Add the new model to the list of updates and dispatch the early update
-            }
+        let upd = new NetworkUpdateEventModel(name, url, hash, isRemove);
-            let newModel = new NetworkUpdateEventModel(name, url, hash, isRemove);
+        this.bufferedUpdates.push(upd);
-            this.bufferedUpdates.push(newModel);
+        this.dispatchEvent(new CustomEvent("update-early", {detail: this.bufferedUpdates}));
 
         // 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));
+            // Update known hashes for minimal updates
+            for (let model of this.bufferedUpdates) {
+                if (model.isRemove == false && model.hash && model.hash === this.knownObjectHashes[model.name]) {
+                    // Delete this useless update
+                    let foundFirst = false;
+                    this.bufferedUpdates = this.bufferedUpdates.filter(m => {
+                        if (m === model) {
+                            if (!foundFirst) { // Remove only first full match
+                                foundFirst = true;
+                                return false;
+                            }
+                        }
+                        return true;
+                    })
+                } else {
+                    // Keep this update and update the last known hash
+                    if (model.isRemove == true) {
+                        if (model.name in this.knownObjectHashes) delete this.knownObjectHashes[model.name];
+                    } else if (model.isRemove == false) {
+                        this.knownObjectHashes[model.name] = model.hash;
+                    }
+                }
+            }
+
+            // Dispatch the event to actually update the models
+            this.dispatchEvent(new NetworkUpdateEvent(this.bufferedUpdates, disconnect));
             this.bufferedUpdates = [];
         }, batchTimeout);
     }
-    }
 }
 
 async function* readLinesStreamings(reader: ReadableStreamDefaultReader<Uint8Array>) {

frontend/misc/scene.ts

@@ -11,12 +11,15 @@ 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, updateHelpers: boolean = true, reloadScene: boolean = true): Promise<Document> {
         let loadStart = performance.now();
+        let loadNetworkEnd: number;
 
+        try {
             // 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)");
+        } finally {
             if (updateHelpers) {
                 // Reload the helpers to fit the new model
                 await this.reloadHelpers(sceneUrl, document, reloadScene);
@@ -29,21 +32,9 @@ export class SceneMgr {
                 document = await this.showCurrentDoc(sceneUrl, document);
                 console.log("Scene displayed in", performance.now() - displayStart, "ms");
             }
-
-        return document;
         }
 
-    private static async reloadHelpers(sceneUrl: Ref<string>, document: Document, reloadScene: boolean): Promise<Document> {
+        return document;
-        let bb = SceneMgr.getBoundingBox(document);
-        if (!bb) return document;
-
-        // Create the helper axes and grid box
-        let helpersDoc = new Document();
-        let transform = (new Matrix4()).makeTranslation(bb.getCenter(new Vector3()));
-        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, false, reloadScene);
     }
 
     static getBoundingBox(document: Document): Box3 | null {
@@ -87,6 +78,19 @@ export class SceneMgr {
         return 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();
+        let transform = (new Matrix4()).makeTranslation(bb.getCenter(new Vector3()));
+        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, false, reloadScene);
+    }
+
     /** Serializes the current document into a GLB and updates the viewerSrc */
     private static async showCurrentDoc(sceneUrl: Ref<string>, document: Document): Promise<Document> {
         // Make sure the document is fully loaded and ready to be shown
@@ -95,7 +99,7 @@ export class SceneMgr {
         // Serialize the document into a GLB and update the viewerSrc
         let buffer = await toBuffer(document);
         let blob = new Blob([buffer], {type: 'model/gltf-binary'});
-        console.debug("Showing current doc", document, "as", Array.from(buffer));
+        console.debug("Showing current doc", document, "with", buffer.length, "total bytes");
         sceneUrl.value = URL.createObjectURL(blob);
 
         return document;

frontend/misc/settings.ts

@@ -12,12 +12,17 @@ export const settings = {
         // Websocket URLs automatically listen for new models from the python backend
         "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: 1000,
     // ModelViewer settings
-    autoplay: true,
+    autoplay: true, // Global animation toggle
     arModes: 'webxr scene-viewer quick-look',
+    zoomSensitivity: 0.25,
+    orbitSensitivity: 1,
+    panSensitivity: 1,
     exposure: 1,
     shadowIntensity: 0,
     background: '',

frontend/models/Model.vue

@@ -1,4 +1,4 @@
-<script setup lang="ts">
+<script lang="ts" setup>
 import {
   VBtn,
   VBtnToggle,
@@ -12,8 +12,8 @@ import {
   VTooltip,
 } from "vuetify/lib/components/index.mjs";
 import {extrasNameKey, extrasNameValueHelpers} from "../misc/gltf";
-import {Document, Mesh} from "@gltf-transform/core";
+import {Mesh} from "@gltf-transform/core";
-import {inject, ref, type ShallowRef, watch} from "vue";
+import {ref, watch} from "vue";
 import type ModelViewerWrapper from "../viewer/ModelViewerWrapper.vue";
 import {
   mdiCircleOpacity,
@@ -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>,
@@ -41,25 +43,24 @@ const emit = defineEmits<{ remove: [] }>()
 
 let modelName = props.meshes[0].getExtras()[extrasNameKey] // + " blah blah blah blah blag blah blah blah"
 
-// Reactive properties
+// Count the number of faces, edges and vertices
-const enabledFeatures = defineModel<Array<number>>("enabledFeatures", {default: [0, 1, 2]});
+let faceCount = ref(-1);
-const opacity = defineModel<number>("opacity", {default: 1});
+let edgeCount = ref(-1);
+let vertexCount = ref(-1);
+
+// 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
+// Misc properties
-let faceCount = props.meshes.map((m) => m.listPrimitives().filter(p => p.getMode() === WebGL2RenderingContext.TRIANGLES).length).reduce((a, b) => a + b, 0)
+const enabledFeatures = defineModel<Array<number>>("enabledFeatures", {default: [0, 1, 2]});
-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)
+const opacity = defineModel<number>("opacity", {default: 1});
-let vertexCount = props.meshes.map((m) => m.listPrimitives().filter(p => p.getMode() === WebGL2RenderingContext.POINTS).length).reduce((a, b) => a + b, 0)
+const wireframe = ref(false);
-
-// Set initial defaults for the enabled features
-if (faceCount === 0) enabledFeatures.value = enabledFeatures.value.filter((f) => f !== 0)
-if (edgeCount === 0) enabledFeatures.value = enabledFeatures.value.filter((f) => f !== 1)
-if (vertexCount === 0) enabledFeatures.value = enabledFeatures.value.filter((f) => f !== 2)
 
 // Listeners for changes in the properties (or viewer reloads)
 function onEnabledFeaturesChange(newEnabledFeatures: Array<number>) {
@@ -67,13 +68,10 @@ function onEnabledFeaturesChange(newEnabledFeatures: Array<number>) {
   let scene = props.viewer?.scene;
   let sceneModel = (scene as any)?._model;
   if (!scene || !sceneModel) return;
-  // Iterate all primitives of the mesh and set their visibility 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
   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);
@@ -87,16 +85,12 @@ function onEnabledFeaturesChange(newEnabledFeatures: Array<number>) {
   scene.queueRender()
 }
 
-watch(enabledFeatures, onEnabledFeaturesChange);
+watch(enabledFeatures, onEnabledFeaturesChange, {deep: true});
 
 function onOpacityChange(newOpacity: number) {
   let scene = props.viewer?.scene;
   let sceneModel = (scene as any)?._model;
   if (!scene || !sceneModel) return;
-  // Iterate all primitives of the mesh and set their opacity 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('Opacity may have changed', newOpacity)
   sceneModel.traverse((child: MObject3D) => {
     if (child.userData[extrasNameKey] === modelName) {
       if (child.material && child.material.opacity !== newOpacity) {
@@ -111,7 +105,22 @@ function onOpacityChange(newOpacity: number) {
 
 watch(opacity, onOpacityChange);
 
-let {sceneDocument} = inject<{ sceneDocument: ShallowRef<Document> }>('sceneDocument')!!;
+function onWireframeChange(newWireframe: boolean) {
+  let scene = props.viewer?.scene;
+  let sceneModel = (scene as any)?._model;
+  if (!scene || !sceneModel) return;
+  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);
 
 function onClipPlanesChange() {
   let scene = props.viewer?.scene;
@@ -125,22 +134,25 @@ 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
+    // Get the bounding box containing all features of this model
-    let boundingBox = SceneMgr.getBoundingBox(sceneDocument.value);
+    bbox = new Box3();
-    if (!boundingBox) return; // No models. Should not happen.
+    sceneModel.traverse((child: MObject3D) => {
-    bbox = boundingBox.translate(scene.getTarget());
+      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 offsetY = bbox.min.y + clipPlaneY.value * (bbox.max.y - bbox.min.y);
-          let offsetZ = bbox.min.y + clipPlaneZ.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), offsetY),
-            new Plane(new Vector3(0, -1, 0), offsetZ),
+            new Plane(new Vector3(0, 0, 1), -offsetZ),
           ];
           if (clipPlaneSwappedX.value) planes[0].negate();
           if (clipPlaneSwappedY.value) planes[1].negate();
@@ -166,20 +178,106 @@ watch(clipPlaneZ, onClipPlanesChange);
 watch(clipPlaneSwappedX, onClipPlanesChange);
 watch(clipPlaneSwappedY, onClipPlanesChange);
 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;
   if (!scene || !sceneModel) return;
-  // Iterate all primitives of the mesh and set their visibility based on the enabled features
+
-  // Use the scene graph instead of the document to avoid reloading the same model, at the cost
+  // Count the number of faces, edges and vertices
-  // of not actually removing the primitives from the scene graph
+  const isFirstLoad = faceCount.value === -1;
+  faceCount.value = 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)
+  edgeCount.value = 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)
+  vertexCount.value = 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)
+
+  // First time: set the enabled features to all provided features
+  if (isFirstLoad) {
+    if (faceCount.value === 0) enabledFeatures.value = enabledFeatures.value.filter((f) => f !== 0)
+    else if (!enabledFeatures.value.includes(0)) enabledFeatures.value.push(0)
+    if (edgeCount.value === 0) enabledFeatures.value = enabledFeatures.value.filter((f) => f !== 1)
+    else if (!enabledFeatures.value.includes(1)) enabledFeatures.value.push(1)
+    if (vertexCount.value === 0) enabledFeatures.value = enabledFeatures.value.filter((f) => f !== 2)
+    else if (!enabledFeatures.value.includes(2)) enabledFeatures.value.push(2)
+  }
+
+  // Add darkened back faces for all face objects to improve cutting planes
   let childrenToAdd: Array<MObject3D> = [];
   sceneModel.traverse((child: MObject3D) => {
+    child.updateMatrixWorld();  // Objects are mostly static, so ensure updated matrices
     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
@@ -193,112 +291,126 @@ 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
-props.viewer!!.onElemReady((elem) => elem.addEventListener('load', onModelLoad))
+const onViewerReady = (viewer: InstanceType<typeof ModelViewerWrapper>) => {
+  viewer?.onElemReady((elem: HTMLElement) => {
+    elem.addEventListener('before-render', onModelLoad);
+    elem.addEventListener('camera-change', onClipPlanesChange);
+  });
+};
+if (props.viewer) onViewerReady(props.viewer); else watch((() => props.viewer) as any, onViewerReady);
 </script>
 
 <template>
   <v-expansion-panel :value="modelName">
-    <v-expansion-panel-title expand-icon="hide-this-icon" collapse-icon="hide-this-icon">
+    <v-expansion-panel-title collapse-icon="hide-this-icon" expand-icon="hide-this-icon">
-      <v-btn-toggle v-model="enabledFeatures" multiple @click.stop color="surface-light">
+      <v-btn-toggle v-model="enabledFeatures" color="surface-light" multiple @click.stop>
         <v-btn icon>
           <v-tooltip activator="parent">Toggle Faces ({{ faceCount }})</v-tooltip>
-          <svg-icon type="mdi" :path="mdiRectangle" :rotate="90"></svg-icon>
+          <svg-icon :path="mdiRectangle" :rotate="90" type="mdi"></svg-icon>
         </v-btn>
         <v-btn icon>
           <v-tooltip activator="parent">Toggle Edges ({{ edgeCount }})</v-tooltip>
-          <svg-icon type="mdi" :path="mdiRectangleOutline" :rotate="90"></svg-icon>
+          <svg-icon :path="mdiRectangleOutline" :rotate="90" type="mdi"></svg-icon>
         </v-btn>
         <v-btn icon>
           <v-tooltip activator="parent">Toggle Vertices ({{ vertexCount }})</v-tooltip>
-          <svg-icon type="mdi" :path="mdiVectorRectangle" :rotate="90"></svg-icon>
+          <svg-icon :path="mdiVectorRectangle" :rotate="90" type="mdi"></svg-icon>
         </v-btn>
       </v-btn-toggle>
       <div class="model-name">{{ modelName }}</div>
       <v-spacer></v-spacer>
       <v-btn icon @click.stop="emit('remove')">
         <v-tooltip activator="parent">Remove</v-tooltip>
-        <svg-icon type="mdi" :path="mdiDelete"></svg-icon>
+        <svg-icon :path="mdiDelete" type="mdi"></svg-icon>
       </v-btn>
     </v-expansion-panel-title>
     <v-expansion-panel-text>
-      <v-slider v-model="opacity" hide-details min="0" max="1" :step="0.1">
+      <v-slider v-model="opacity" :step="0.1" hide-details max="1" min="0">
         <template v-slot:prepend>
           <v-tooltip activator="parent">Change opacity</v-tooltip>
-          <svg-icon type="mdi" :path="mdiCircleOpacity"></svg-icon>
+          <svg-icon :path="mdiCircleOpacity" type="mdi"></svg-icon>
+        </template>
+        <template v-slot:append>
+          <v-tooltip activator="parent">Wireframe</v-tooltip>
+          <v-checkbox-btn v-model="wireframe" falseIcon="mdi-triangle" trueIcon="mdi-triangle-outline"></v-checkbox-btn>
+        </template>
+      </v-slider>
+      <v-slider v-if="edgeCount > 0 || vertexCount > 0" v-model="edgeWidth" hide-details max="1" min="0">
+        <template v-slot:prepend>
+          <v-tooltip activator="parent">Edge and vertex sizes</v-tooltip>
+          <svg-icon :path="mdiVectorLine" type="mdi"></svg-icon>
         </template>
       </v-slider>
       <v-divider></v-divider>
-      <v-slider v-model="clipPlaneX" hide-details min="0" max="1">
+      <v-slider v-model="clipPlaneX" hide-details max="1" min="0">
         <template v-slot:prepend>
           <v-tooltip activator="parent">Clip plane X</v-tooltip>
-          <svg-icon type="mdi" :path="mdiCube" :rotate="120"></svg-icon>
+          <svg-icon :path="mdiCube" :rotate="120" type="mdi"></svg-icon>
           X
         </template>
         <template v-slot:append>
           <v-tooltip activator="parent">Swap clip plane X</v-tooltip>
-          <v-checkbox-btn trueIcon="mdi-checkbox-marked-outline" falseIcon="mdi-checkbox-blank-outline"
+          <v-checkbox-btn v-model="clipPlaneSwappedX" falseIcon="mdi-checkbox-blank-outline"
-                          v-model="clipPlaneSwappedX">
+                          trueIcon="mdi-checkbox-marked-outline">
             <template v-slot:label>
-              <svg-icon type="mdi" :path="mdiSwapHorizontal"></svg-icon>
+              <svg-icon :path="mdiSwapHorizontal" type="mdi"></svg-icon>
             </template>
           </v-checkbox-btn>
         </template>
       </v-slider>
-      <v-slider v-model="clipPlaneY" hide-details min="0" max="1">
+      <v-slider v-model="clipPlaneZ" hide-details max="1" min="0">
         <template v-slot:prepend>
           <v-tooltip activator="parent">Clip plane Y</v-tooltip>
-          <svg-icon type="mdi" :path="mdiCube" :rotate="-120"></svg-icon>
+          <svg-icon :path="mdiCube" :rotate="-120" type="mdi"></svg-icon>
           Y
         </template>
         <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-checkbox-btn v-model="clipPlaneSwappedZ" falseIcon="mdi-checkbox-blank-outline"
-                          v-model="clipPlaneSwappedY">
+                          trueIcon="mdi-checkbox-marked-outline">
             <template v-slot:label>
-              <svg-icon type="mdi" :path="mdiSwapHorizontal"></svg-icon>
+              <svg-icon :path="mdiSwapHorizontal" type="mdi"></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 max="1" min="0">
         <template v-slot:prepend>
           <v-tooltip activator="parent">Clip plane Z</v-tooltip>
-          <svg-icon type="mdi" :path="mdiCube"></svg-icon>
+          <svg-icon :path="mdiCube" type="mdi"></svg-icon>
           Z
         </template>
         <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-checkbox-btn v-model="clipPlaneSwappedY" falseIcon="mdi-checkbox-blank-outline"
-                          v-model="clipPlaneSwappedZ">
+                          trueIcon="mdi-checkbox-marked-outline">
             <template v-slot:label>
-              <svg-icon type="mdi" :path="mdiSwapHorizontal"></svg-icon>
+              <svg-icon :path="mdiSwapHorizontal" type="mdi"></svg-icon>
             </template>
           </v-checkbox-btn>
         </template>
@@ -359,4 +471,12 @@ 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/models/Models.vue

@@ -1,4 +1,4 @@
-<script setup lang="ts">
+<script lang="ts" setup>
 import {VExpansionPanels} from "vuetify/lib/components/index.mjs";
 import type ModelViewerWrapper from "../viewer/ModelViewerWrapper.vue";
 import {Document, Mesh} from "@gltf-transform/core";
@@ -36,9 +36,7 @@ function onRemove(mesh: Mesh) {
 }
 
 function findModel(name: string) {
-  console.log('Find model', name);
   if (!expandedNames.value.includes(name)) expandedNames.value.push(name);
-  console.log('Expanded', expandedNames.value);
 }
 
 defineExpose({findModel})

frontend/shims.d.ts

@@ -1,3 +1,5 @@
 // Avoids typescript error when importing some files
 declare module '@jamescoyle/vue-icon'
 declare module 'three-orientation-gizmo/src/OrientationGizmo'
+declare module 'three/examples/jsm/libs/draco/draco_decoder.js'
+declare module 'three/examples/jsm/libs/draco/draco_encoder.js'

frontend/tools/LicensesDialogContent.vue

@@ -1,4 +1,4 @@
-<script setup lang="ts">
+<script lang="ts" setup>
 // License text for all dependencies, only downloaded when/if needed
 // @ts-ignore
 import licenseText from "../../assets/licenses.txt?raw";

frontend/tools/OrientationGizmo.vue

@@ -1,18 +1,16 @@
-<script setup lang="ts">
+<script lang="ts" setup>
 import {onMounted, onUpdated, ref} from "vue";
 import type {ModelScene} from "@google/model-viewer/lib/three-components/ModelScene";
 import * as OrientationGizmoRaw from "three-orientation-gizmo/src/OrientationGizmo";
-import type {ModelViewerElement} from '@google/model-viewer';
 
 // Optimized minimal dependencies from three
 import {Vector3} from "three/src/math/Vector3.js";
 import {Matrix4} from "three/src/math/Matrix4.js";
+import type ModelViewerWrapper from "../viewer/ModelViewerWrapper.vue";
 
-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;
+const props = defineProps<{ viewer: InstanceType<typeof ModelViewerWrapper> }>();
-
-const props = defineProps<{ elem: ModelViewerElement | null, scene: ModelScene }>();
 
 function createGizmo(expectedParent: HTMLElement, scene: ModelScene): HTMLElement {
   // noinspection SpellCheckingInspection
@@ -33,21 +31,26 @@ function createGizmo(expectedParent: HTMLElement, scene: ModelScene): HTMLElemen
   }
   // Append and listen for events
   gizmo.onAxisSelected = (axis: { direction: { x: any; y: any; z: any; }; }) => {
-    let lookFrom = scene.getCamera().position.clone();
+    if (!props.viewer.elem || !props.viewer.controls) return;
-    let lookAt = scene.getTarget().clone().add(scene.target.position);
+    // Animate the controls to the new wanted angle
-    let magnitude = lookFrom.clone().sub(lookAt).length()
+    const controls = props.viewer.controls;
-    let direction = new Vector3(axis.direction.x, axis.direction.y, axis.direction.z);
+    const {theta: curTheta/*, phi: curPhi*/} = (controls as any).goalSpherical;
-    let newLookFrom = lookAt.clone().add(direction.clone().multiplyScalar(magnitude));
+    let wantedTheta = NaN;
-    //console.log("New camera position", newLookFrom)
+    let wantedPhi = NaN;
-    scene.getCamera().position.copy(newLookFrom);
+    let attempt = 0
-    scene.getCamera().lookAt(lookAt);
+    while ((attempt == 0 || curTheta == wantedTheta) && attempt < 2) {
-    if ((scene as any).__perspectiveCamera) { // HACK: Make the hacky ortho also work
+      if (attempt > 0) { // Flip the camera if the user clicks on the same axis
-      (scene as any).__perspectiveCamera.position.copy(newLookFrom);
+        axis.direction.x = -axis.direction.x;
-      (scene as any).__perspectiveCamera.lookAt(lookAt);
+        axis.direction.y = -axis.direction.y;
+        axis.direction.z = -axis.direction.z;
       }
+      wantedTheta = Math.atan2(axis.direction.x, axis.direction.z);
+      wantedPhi = Math.asin(-axis.direction.y) + Math.PI / 2;
+      attempt++;
+    }
+    controls.setOrbit(wantedTheta, wantedPhi);
+    props.viewer.elem?.dispatchEvent(new CustomEvent('camera-change', {detail: {source: 'none'}}))
     scene.queueRender();
-    requestIdleCallback(() => props.elem?.dispatchEvent(
-        new CustomEvent('camera-change', {detail: {source: 'none'}})), {timeout: 100})
   }
   return gizmo;
 }
@@ -65,9 +68,9 @@ function updateGizmo() {
 }
 
 let reinstall = () => {
-  if(!container.value) return;
+  if (!container.value) return;
   if (gizmo) container.value.removeChild(gizmo);
-  gizmo = createGizmo(container.value, props.scene as ModelScene) as typeof gizmo;
+  gizmo = createGizmo(container.value, props.viewer.scene!! as any) as typeof gizmo;
   container.value.appendChild(gizmo);
   requestIdleCallback(updateGizmo, {timeout: 250}); // Low priority updates
 }

frontend/tools/Selection.vue

@@ -1,4 +1,4 @@
-<script setup lang="ts">
+<script lang="ts" setup>
 import {defineModel, inject, ref, type ShallowRef, watch} from "vue";
 import {VBtn, VSelect, VTooltip} from "vuetify/lib/components/index.mjs";
 import SvgIcon from '@jamescoyle/vue-icon';
@@ -6,44 +6,50 @@ 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);
 
 let mouseDownAt: [number, number] | null = null;
+let mouseDownTime = 0;
 let selectFilter = ref('Any (S)');
 const raycaster = new Raycaster();
 
 
-let selectionMoveListener = (event: MouseEvent) => {
+let mouseDownListener = (event: MouseEvent) => {
   mouseDownAt = [event.clientX, event.clientY];
+  mouseDownTime = performance.now();
   if (!selectionEnabled.value) return;
 };
 
-let selectionListener = (event: MouseEvent) => {
+let mouseUpListener = (event: MouseEvent) => {
   // If the mouse moved while clicked (dragging), avoid selection logic
   if (mouseDownAt) {
     let [x, y] = mouseDownAt;
     mouseDownAt = null;
-    if (Math.abs(event.clientX - x) > 5 || Math.abs(event.clientY - y) > 5) {
+    if (Math.abs(event.clientX - x) > 5 || Math.abs(event.clientY - y) > 5 || performance.now() - mouseDownTime > 500) {
       return;
     }
   }
@@ -92,8 +98,27 @@ 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
+  // Find all hit objects and raycast the wanted ones based on the filter
-  const hits = raycaster.intersectObject(scene, true);
+  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';
+    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>) => {
@@ -106,7 +131,7 @@ let selectionListener = (event: MouseEvent) => {
             (isFace && selectFilter.value === '(F)aces') ||
             (isEdge && selectFilter.value === '(E)dges') ||
             (isVertex && selectFilter.value === '(V)ertices');
-        return (!isFace || hit.object.visible) && !hit.object.userData.noHit && kindOk;
+        return (!isFace || hit.object.visible) && kindOk;
       })
       // Sort for highlighting partially hidden edges/vertices
       .sort((a, b) => {
@@ -123,17 +148,19 @@ let selectionListener = (event: MouseEvent) => {
       })
       // Return the best hit
       [0] as Intersection<MObject3D> | undefined;
-  // console.log('Hit', hit)
 
   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();
@@ -149,34 +176,22 @@ let selectionListener = (event: MouseEvent) => {
   scene.queueRender() // Force rerender of model-viewer
 }
 
-function select(hit: Intersection<MObject3D>) {
+function select(selInfo: SelectionInfo) {
-  // console.log('Selecting', hit.object.name)
+  // console.log('Selecting', selInfo.object.name)
-  if (selected.value.find((m) => m.object.name === hit.object.name) === undefined) {
+  if (selected.value.find((m) => m.getKey() === selInfo.getKey()) === undefined) {
-    selected.value.push(hit);
+    selected.value.push(selInfo);
   }
-  hit.object.material.__prevBaseColorFactor = [
+  highlight(selInfo);
-    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;
 }
 
-function deselect(hit: Intersection<MObject3D>, alsoRemove = true) {
+function deselect(selInfo: SelectionInfo, alsoRemove = true) {
-  // console.log('Deselecting', hit.object.name)
+  // 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) {
+  highlightUndo(selInfo);
-    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;
-  }
 }
 
 function deselectAll(alsoRemove = true) {
@@ -241,14 +256,29 @@ let onViewerReady = (viewer: typeof ModelViewerWrapperT) => {
   viewer.onElemReady((elem: ModelViewerElement) => {
     if (hasListeners) return;
     hasListeners = true;
-    elem.addEventListener('mouseup', selectionListener);
+    elem.addEventListener('mousedown', mouseDownListener); // Avoid clicking when dragging
-    elem.addEventListener('mousedown', selectionMoveListener); // Avoid clicking when dragging
+    elem.addEventListener('mouseup', mouseUpListener);
-    elem.addEventListener('load', () => {
+    elem.addEventListener('before-render', () => {
+      // After a reload of the scene, we need to recover object references and highlight them again
+      for (let sel of selected.value) {
+        let scene = props.viewer?.scene;
+        if (!scene) continue;
+        let foundObject = null;
+        scene.traverse((obj: MObject3D) => {
+          if (sel.matches(obj)) {
+            foundObject = obj as MObject3D;
+          }
+        });
+        if (foundObject) {
+          sel.object = foundObject;
+          highlight(sel);
+        } else {
+          selected.value = selected.value.filter((m) => m.getKey() !== sel.getKey());
+        }
+      }
       if (firstLoad) {
         toggleShowBoundingBox();
         firstLoad = false;
-      } else {
-        updateBoundingBox();
       }
     });
     elem.addEventListener('camera-change', onCameraChange);
@@ -273,9 +303,8 @@ 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 {
     let boundingBox = SceneMgr.getBoundingBox(sceneDocument.value);
     if (!boundingBox) return; // No models. Should not happen.
@@ -380,9 +409,7 @@ function updateDistances() {
   }
 
   // Add lines (if not already added)
-  let objA = selected.value[0].object;
+  let {min, center, max} = distances(selected.value[0], selected.value[1], props.viewer?.scene);
-  let objB = selected.value[1].object;
-  let {min, center, max} = distances(objA, objB, 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");
@@ -396,6 +423,8 @@ function updateDistances() {
   return;
 }
 
+defineExpose({deselect, updateBoundingBox, updateDistances});
+
 // Add keyboard shortcuts
 window.addEventListener('keydown', (event) => {
   if (event.key === 's') {
@@ -433,52 +462,41 @@ window.addEventListener('keydown', (event) => {
 </script>
 
 <template>
-  <div class="select-parent">
+  <v-btn :color="selectionEnabled ? 'surface-light' : ''" icon @click="toggleSelection">
-    <v-btn icon @click="toggleSelection" :color="selectionEnabled ? 'surface-light' : ''">
     <v-tooltip activator="parent">{{ selectionEnabled ? 'Disable (s)election mode' : 'Enable (s)election mode' }}
     </v-tooltip>
-      <svg-icon type="mdi" :path="mdiCursorDefaultClick"/>
+    <svg-icon :path="mdiCursorDefaultClick" type="mdi"/>
   </v-btn>
-    <v-tooltip :text="'Select only '  + selectFilter.toString().toLocaleLowerCase()" :open-on-click="false">
+  <v-tooltip :open-on-click="false" :text="'Select only '  + selectFilter.toString().toLocaleLowerCase()">
     <template v-slot:activator="{ props }">
-        <v-select v-bind="props" class="select-only" variant="underlined"
+      <v-select v-model="selectFilter" :items="['Any (S)', '(F)aces', '(E)dges', '(V)ertices']" class="select-only"
-                  :items="['Any (S)', '(F)aces', '(E)dges', '(V)ertices']"
+                v-bind="props"
-                  v-model="selectFilter"/>
+                variant="underlined"/>
     </template>
   </v-tooltip>
-  </div>
+  <v-btn :color="highlightNextSelection[0] ? 'surface-light' : ''" icon @click="toggleHighlightNextSelection">
-  <v-btn icon @click="toggleHighlightNextSelection" :color="highlightNextSelection[0] ? 'surface-light' : ''">
     <v-tooltip activator="parent">(H)ighlight the next clicked element in the models list</v-tooltip>
-    <svg-icon type="mdi" :path="mdiFeatureSearch"/>
+    <svg-icon :path="mdiFeatureSearch" type="mdi"/>
   </v-btn>
-  <v-btn icon @click="toggleShowBoundingBox" :color="showBoundingBox ? 'surface-light' : ''">
+  <v-btn :color="showBoundingBox ? 'surface-light' : ''" icon @click="toggleShowBoundingBox">
     <v-tooltip activator="parent">{{ showBoundingBox ? 'Hide selection (b)ounds' : 'Show selection (b)ounds' }}
     </v-tooltip>
-    <svg-icon type="mdi" :path="mdiCubeOutline"/>
+    <svg-icon :path="mdiCubeOutline" type="mdi"/>
   </v-btn>
-  <v-btn icon @click="toggleShowDistances" :color="showDistances ? 'surface-light' : ''">
+  <v-btn :color="showDistances ? 'surface-light' : ''" icon @click="toggleShowDistances">
     <v-tooltip activator="parent">
       {{ showDistances ? 'Hide selection (d)istances' : 'Show (d)istances (when a pair of features is selected)' }}
     </v-tooltip>
-    <svg-icon type="mdi" :path="mdiRuler"/>
+    <svg-icon :path="mdiRuler" type="mdi"/>
   </v-btn>
 </template>
 
 <style scoped>
-/* Very hacky styling... */
-.select-parent {
-  height: 48px;
-}
-
-.select-parent .v-btn {
-  position: relative;
-  top: -20px;
-}
-
 .select-only {
-  display: inline-block;
+  float: right;
-  width: calc(100% - 48px);
+  height: 36px;
   position: relative;
   top: -12px;
+  width: calc(100% - 48px);
 }
 </style>

frontend/tools/Tools.vue

@@ -1,4 +1,4 @@
-<script setup lang="ts">
+<script lang="ts" setup>
 import {
   VBtn,
   VCard,
@@ -16,11 +16,10 @@ 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 {defineAsyncComponent, ref, type Ref} from "vue";
+import type {SelectionInfo} from "./selection";
 
 const SelectionComponent = defineAsyncComponent({
   loader: () => import("./Selection.vue"),
@@ -39,10 +38,10 @@ const LicensesDialogContent = defineAsyncComponent({
 let props = defineProps<{ viewer: InstanceType<typeof ModelViewerWrapper> | null }>();
 const emit = defineEmits<{ findModel: [string] }>()
 
-let selection: Ref<Array<Intersection<MObject3D>>> = ref([]);
+let selection: Ref<Array<SelectionInfo>> = ref([]);
-let selectionFaceCount = () => selection.value.filter((s) => s.object.type == "Mesh" || s.object.type == "SkinnedMesh").length
+let selectionFaceCount = () => selection.value.filter((s) => s.kind == 'face').length
-let selectionEdgeCount = () => selection.value.filter((s) => s.object.type == "Line").length
+let selectionEdgeCount = () => selection.value.filter((s) => s.kind == 'edge').length
-let selectionVertexCount = () => selection.value.filter((s) => s.object.type == "Points").length
+let selectionVertexCount = () => selection.value.filter((s) => s.kind == "vertex").length
 
 function syncOrthoCamera(force: boolean) {
   let scene = props.viewer?.scene;
@@ -57,14 +56,14 @@ function syncOrthoCamera(force: boolean) {
     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(lookAtCenter);
+    scene.camera.rotation.copy(perspectiveCam.rotation);
     if (force) scene.queueRender() // Force rerender of model-viewer
     requestAnimationFrame(() => syncOrthoCamera(false));
   }
 }
 
 let toggleProjectionText = ref('PERSP'); // Default to perspective camera
-function toggleProjection() {
+async function toggleProjection() {
   let scene = props.viewer?.scene;
   if (!scene) return;
   let prevCam = scene.camera;
@@ -79,16 +78,16 @@ function toggleProjection() {
     scene.queueRender() // Force rerender of model-viewer
   }
   toggleProjectionText.value = wasPerspectiveCamera ? 'ORTHO' : 'PERSP';
-  // The camera change may take a few frames to take effect, dispatch the event after a delay
+  // The camera change may take a frame to take effect, dispatch the event after a delay
-  requestIdleCallback(() => props.viewer?.elem?.dispatchEvent(
+  await new Promise((resolve) => requestAnimationFrame(resolve));
-      new CustomEvent('camera-change', {detail: {source: 'none'}})), {timeout: 100})
+  props.viewer?.elem?.dispatchEvent(new CustomEvent('camera-change', {detail: {source: 'none'}}));
 }
 
 async function centerCamera() {
   let viewerEl: ModelViewerElement | null | undefined = props.viewer?.elem;
   if (!viewerEl) return;
-  await viewerEl.updateFraming();
+  props.viewer?.scene?.setTarget(0, 0, 0); // Center the target
-  viewerEl.zoom(3);
+  viewerEl.zoom(-1000000); // Max zoom out
 }
 
 
@@ -107,6 +106,15 @@ async function openGithub() {
   window.open('https://github.com/yeicor-3d/yet-another-cad-viewer', '_blank')
 }
 
+function removeObjectSelections(objName: string) {
+  for (let selInfo of selection.value.filter((s) => s.getObjectName() === objName)) {
+    selectionComp.value?.deselect(selInfo);
+  }
+  selectionComp.value?.updateBoundingBox();
+  selectionComp.value?.updateDistances();
+}
+
+defineExpose({removeObjectSelections});
 
 // Add keyboard shortcuts
 window.addEventListener('keydown', (event) => {
@@ -118,35 +126,35 @@ window.addEventListener('keydown', (event) => {
 </script>
 
 <template>
-  <orientation-gizmo :scene="props.viewer.scene as any" :elem="props.viewer.elem" v-if="props.viewer?.scene"/>
+  <orientation-gizmo v-if="props.viewer?.scene" :viewer="props.viewer"/>
   <v-divider/>
   <h5>Camera</h5>
   <v-btn icon @click="toggleProjection"><span class="icon-detail">{{ toggleProjectionText }}</span>
     <v-tooltip activator="parent">Toggle (P)rojection<br/>(currently
       {{ toggleProjectionText === 'PERSP' ? 'perspective' : 'orthographic' }})
     </v-tooltip>
-    <svg-icon type="mdi" :path="mdiProjector"></svg-icon>
+    <svg-icon :path="mdiProjector" type="mdi"></svg-icon>
   </v-btn>
   <v-btn icon @click="centerCamera">
     <v-tooltip activator="parent">Re(c)enter Camera</v-tooltip>
-    <svg-icon type="mdi" :path="mdiCrosshairsGps"/>
+    <svg-icon :path="mdiCrosshairsGps" type="mdi"/>
   </v-btn>
   <v-divider/>
   <h5>Selection ({{ selectionFaceCount() }}F {{ selectionEdgeCount() }}E {{ selectionVertexCount() }}V)</h5>
-  <selection-component :ref="selectionComp as any" :viewer="props.viewer as any" v-model="selection"
+  <selection-component ref="selectionComp" v-model="selection" :viewer="props.viewer as any"
                        @findModel="(name) => emit('findModel', name)"/>
   <v-divider/>
   <v-spacer></v-spacer>
   <h5>Extras</h5>
   <v-btn icon @click="downloadSceneGlb">
     <v-tooltip activator="parent">(D)ownload Scene</v-tooltip>
-    <svg-icon type="mdi" :path="mdiDownload"/>
+    <svg-icon :path="mdiDownload" type="mdi"/>
   </v-btn>
   <v-dialog id="licenses-dialog" fullscreen>
     <template v-slot:activator="{ props }">
       <v-btn icon v-bind="props">
         <v-tooltip activator="parent">Show Licenses</v-tooltip>
-        <svg-icon type="mdi" :path="mdiLicense"/>
+        <svg-icon :path="mdiLicense" type="mdi"/>
       </v-btn>
     </template>
     <template v-slot:default="{ isActive }">
@@ -156,7 +164,7 @@ window.addEventListener('keydown', (event) => {
           <v-spacer>
           </v-spacer>
           <v-btn icon @click="isActive.value = false">
-            <svg-icon type="mdi" :path="mdiClose"/>
+            <svg-icon :path="mdiClose" type="mdi"/>
           </v-btn>
         </v-toolbar>
         <v-card-text>
@@ -167,7 +175,7 @@ window.addEventListener('keydown', (event) => {
   </v-dialog>
   <v-btn icon @click="openGithub">
     <v-tooltip activator="parent">Open (G)itHub</v-tooltip>
-    <svg-icon type="mdi" :path="mdiGithub"/>
+    <svg-icon :path="mdiGithub" type="mdi"/>
   </v-btn>
   <div ref="statsHolder"></div>
 </template>
@@ -187,4 +195,8 @@ window.addEventListener('keydown', (event) => {
   position: relative;
   top: 5px;
 }
+
+h5 {
+  font-size: 14px;
+}
 </style>

frontend/tools/selection.ts

@@ -0,0 +1,163 @@
+// Model management from the graphics side
+
+import type {MObject3D} from "./Selection.vue";
+import type {Intersection} from "three";
+import {Box3} from "three";
+import {extrasNameKey} from "../misc/gltf";
+
+/** 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 getObjectName() {
+        return this.object.userData[extrasNameKey];
+    }
+
+    public matches(object: MObject3D) {
+        return this.getObjectName() === object.userData[extrasNameKey] &&
+            (this.kind === 'face' && (object.type === 'Mesh' || object.type === 'SkinnedMesh') ||
+                this.kind === 'edge' && (object.type === 'Line' || object.type === 'LineSegments') ||
+                this.kind === 'vertex' && object.type === 'Points')
+    }
+
+    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

@@ -1,41 +1,115 @@
-<script setup lang="ts">
+<script lang="ts" setup>
 import {settings} from "../misc/settings";
 import {inject, onMounted, type Ref, ref, watch} from "vue";
-import {VList, VListItem} from "vuetify/lib/components/index.mjs";
 import {$renderer, $scene} from "@google/model-viewer/lib/model-viewer-base";
-import Loading from "../misc/Loading.vue";
+import {$controls} from '@google/model-viewer/lib/features/controls.js';
+import {type SmoothControls} from '@google/model-viewer/lib/three-components/SmoothControls';
 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 {BufferGeometry, Mesh} from "three";
+import {acceleratedRaycast, computeBoundsTree, disposeBoundsTree} from 'three-mesh-bvh';
 
 ModelViewerElement.modelCacheSize = 0; // Also needed to avoid tree shaking
-
+//@ts-ignore
-const emit = defineEmits<{ load: [] }>()
+BufferGeometry.prototype.computeBoundsTree = computeBoundsTree;
+//@ts-ignore
+BufferGeometry.prototype.disposeBoundsTree = disposeBoundsTree;
+//@ts-ignore
+Mesh.prototype.raycast = acceleratedRaycast;
 
 const props = defineProps<{ src: string }>();
 
 const elem = ref<ModelViewerElement | null>(null);
 const scene = ref<ModelScene | null>(null);
 const renderer = ref<Renderer | null>(null);
+const controls = ref<SmoothControls | null>(null);
 
+
+let lastCameraTargetPosition: Vector3 | undefined = undefined;
+let lastCameraZoom: number | undefined = undefined;
+let lastCameraUrl = props.src.toString();
 onMounted(() => {
   if (!elem.value) return;
-  elem.value.addEventListener('load', async () => {
+  elem.value.addEventListener('before-render', () => {
     if (!elem.value) return;
-    // Delete the initial load banner
+    // Extract internals of model-viewer in order to hack unsupported features
-    let banner = elem.value.querySelector('.initial-load-banner');
-    if (banner) banner.remove();
-    // Set the scene and renderer
     scene.value = elem.value[$scene] as ModelScene;
     renderer.value = elem.value[$renderer] as Renderer;
-    // Emit the load event
+    controls.value = (elem.value as any)[$controls] as SmoothControls;
-    emit('load')
+    // Recover the camera position if it was set before
+    if (lastCameraTargetPosition) {
+      // console.log("RESTORING camera position?", lastCameraTargetPosition);
+      scene.value.setTarget(-lastCameraTargetPosition.x, -lastCameraTargetPosition.y, -lastCameraTargetPosition.z);
+      scene.value.jumpToGoal(); // Avoid move animation
+    }
+    (async () => {
+      let tries = 0
+      while (tries++ < 25) {
+        if (!lastCameraZoom || !elem.value?.getCameraOrbit()?.radius) break;
+        let change = lastCameraZoom - elem.value.getCameraOrbit().radius;
+        //console.log("Zooming to", lastCameraZoom, "from", elem.value.getCameraOrbit().radius, "change", change);
+        if (Math.abs(change) < 0.001) break;
+        elem.value.zoom(-Math.sign(change) * (Math.pow(Math.abs(change) + 1, 0.9) - 1)); // Arbitrary, experimental
+        elem.value.jumpCameraToGoal();
+        await elem.value.updateComplete;
+      }
+      //console.log("Ready to save!")
+      lastCameraUrl = props.src.toString();
+    })();
   });
   elem.value.addEventListener('camera-change', onCameraChange);
+  elem.value.addEventListener('progress', (ev) => onProgress((ev as any).detail.totalProgress));
 });
 
+function onCameraChange() {
+  // Remember the camera position to keep it in case of scene changes
+  if (scene.value && props.src.toString() == lastCameraUrl) {  // Don't overwrite with initial unwanted positions
+    lastCameraTargetPosition = scene.value.target.position.clone();
+    lastCameraZoom = elem.value?.getCameraOrbit()?.radius;
+    //console.log("Saving camera?", lastCameraTargetPosition, lastCameraZoom);
+  }
+  // Also need to update the SVG overlay
+  for (let lineId in lines.value) {
+    onCameraChangeLine(lineId as any);
+  }
+}
+
+// Handles loading the events for <model-viewer>'s slotted progress bar
+const progressBar = ref<HTMLElement | null>(null);
+const updateBar = ref<HTMLElement | null>(null);
+let onProgressHideTimeout: number | null = null;
+const onProgress = (totalProgress: number) => {
+  if (!progressBar.value || !updateBar.value) return;
+  // Update the progress bar and ensure it's visible
+  progressBar.value.style.display = 'block';
+  progressBar.value.style.opacity = '1'; // Fade in
+  updateBar.value.style.width = `${totalProgress * 100}%`;
+  // Auto-hide smoothly when no progress is made for a while
+  if (onProgressHideTimeout) clearTimeout(onProgressHideTimeout);
+  onProgressHideTimeout = setTimeout(() => {
+    if (!progressBar.value) return;
+    progressBar.value.style.opacity = '0'; // Fade out
+    setTimeout(() => {
+      if (!progressBar.value) return;
+      progressBar.value.style.display = 'none'; // Actually hide
+    }, 300); // 0.3s fade out
+  }, 1000);
+};
+
+const poster = ref<string>("")
+const setPosterText = (newText: string) => {
+  poster.value = "data:image/svg+xml;charset=utf-8;base64," + btoa(
+      '<svg width="800" height="600" xmlns="http://www.w3.org/2000/svg" fill="gray">' +
+      '<text x="50%" y="0%" dominant-baseline="middle" text-anchor="middle" font-size="48px">' +
+      newText +
+      '</text>' +
+      '</svg>')
+}
+setPosterText("Loading...")
+
 class Line3DData {
   startHotspot: HTMLElement = document.body
   endHotspot: HTMLElement = document.body
@@ -88,13 +162,6 @@ function removeLine3D(id: number): boolean {
   return true;
 }
 
-function onCameraChange() {
-  // Need to update the SVG overlay
-  for (let lineId in lines.value) {
-    onCameraChangeLine(lineId as any);
-  }
-}
-
 let svg = ref<SVGElement | null>(null);
 
 function onCameraChangeLine(lineId: number) {
@@ -130,48 +197,47 @@ function entries(lines: { [id: number]: Line3DData }): [string, Line3DData][] {
   return Object.entries(lines);
 }
 
-defineExpose({elem, onElemReady, scene, renderer, addLine3D, removeLine3D});
+defineExpose({elem, onElemReady, scene, renderer, controls, addLine3D, removeLine3D, onProgress, setPosterText});
 
 let {disableTap} = inject<{ disableTap: Ref<boolean> }>('disableTap')!!;
-watch(disableTap, (value) => {
+watch(disableTap, (newDisableTap) => {
-  // Rerender not auto triggered? This works anyway...
+  if (elem.value) elem.value.disableTap = newDisableTap;
-  if (value) elem.value?.setAttribute('disable-tap', '');
-  else elem.value?.removeAttribute('disable-tap');
 });
 </script>
 
 <template>
   <!-- The main 3D model viewer -->
-  <model-viewer ref="elem" style="width: 100%; height: 100%" :src="props.src" alt="The 3D model(s)" camera-controls
+  <model-viewer ref="elem" :ar="settings.arModes.length > 0" :ar-modes="settings.arModes" :autoplay="settings.autoplay"
-                camera-orbit="30deg 75deg auto" max-camera-orbit="Infinity 180deg auto"
+                :environment-image="settings.background" :exposure="settings.exposure"
-                min-camera-orbit="-Infinity 0deg 5%" :disable-tap="disableTap" :exposure="settings.exposure"
+                :orbit-sensitivity="settings.orbitSensitivity" :pan-sensitivity="settings.panSensitivity"
-                :shadow-intensity="settings.shadowIntensity" interaction-prompt="none" :autoplay="settings.autoplay"
+                :poster="poster" :shadow-intensity="settings.shadowIntensity" :skybox-image="settings.background"
-                :ar="settings.arModes.length > 0" :ar-modes="settings.arModes" :skybox-image="settings.background"
+                :src="props.src" :zoom-sensitivity="settings.zoomSensitivity" alt="The 3D model(s)" camera-controls
-                :environment-image="settings.background">
+                camera-orbit="30deg 75deg auto" interaction-prompt="none" max-camera-orbit="Infinity 180deg auto"
-    <slot></slot> <!-- Controls, annotations, etc. -->
+                min-camera-orbit="-Infinity 0deg 5%" style="width: 100%; height: 100%">
-    <div class="annotation initial-load-banner">
+    <slot></slot>
-      Trying to load models from...
+    <!-- Add a progress bar to the top of the model viewer -->
-      <v-list v-for="src in settings.preload" :key="src">
+    <div ref="progressBar" slot="progress-bar" class="progress-bar">
-        <v-list-item>{{ src }}</v-list-item>
+      <div ref="updateBar" class="update-bar"/>
-      </v-list>
-      <loading></loading>
     </div>
   </model-viewer>
 
   <!-- The SVG overlay for fake 3D lines attached to the model -->
   <div class="overlay-svg-wrapper">
-    <svg ref="svg" class="overlay-svg" width="100%" height="100%" xmlns="http://www.w3.org/2000/svg">
+    <svg ref="svg" class="overlay-svg" height="100%" width="100%" xmlns="http://www.w3.org/2000/svg">
       <g v-for="[lineId, line] in entries(lines)" :key="lineId">
-        <line :x1="line.start2D[0]" :y1="line.start2D[1]" :x2="line.end2D[0]"
+        <line :x1="line.start2D[0]" :x2="line.end2D[0]" :y1="line.start2D[1]"
               :y2="line.end2D[1]" v-bind="line.lineAttrs"/>
         <g v-if="line.centerText !== undefined">
-          <rect :x="(line.start2D[0] + line.end2D[0]) / 2 - line.centerTextSize[0]/2 - 4"
+          <rect v-if="line.centerText"
-                :y="(line.start2D[1] + line.end2D[1]) / 2 - line.centerTextSize[1]/2 - 2"
+                :height="line.centerTextSize[1] + 4"
-                :width="line.centerTextSize[0] + 8" :height="line.centerTextSize[1] + 4"
+                :width="line.centerTextSize[0] + 8"
-                fill="gray" fill-opacity="0.75" rx="4" ry="4" stroke="black" v-if="line.centerText"/>
+                :x="(line.start2D[0] + line.end2D[0]) / 2 - line.centerTextSize[0]/2 - 4"
-          <text :x="(line.start2D[0] + line.end2D[0]) / 2" :y="(line.start2D[1] + line.end2D[1]) / 2"
+                :y="(line.start2D[1] + line.end2D[1]) / 2 - line.centerTextSize[1]/2 - 2" fill="gray"
-                text-anchor="middle" dominant-baseline="middle" font-size="16" fill="black"
+                fill-opacity="0.75" rx="4" ry="4" stroke="black"/>
-                :class="'line' + lineId + '_text'" v-if="line.centerText">
+          <text v-if="line.centerText" :class="'line' + lineId + '_text'"
+                :x="(line.start2D[0] + line.end2D[0]) / 2" :y="(line.start2D[1] + line.end2D[1]) / 2"
+                dominant-baseline="middle" fill="black"
+                font-size="16" text-anchor="middle">
             {{ line.centerText }}
           </text>
         </g>
@@ -206,14 +272,29 @@ watch(disableTap, (value) => {
   pointer-events: none;
 }
 
-.initial-load-banner {
+.progress-bar {
-  width: 300px;
+  display: block;
-  margin: auto;
+  pointer-events: none;
-  margin-top: 3em;
+  width: 100%;
-  overflow: hidden;
+  height: 10%;
+  max-height: 2%;
+  position: absolute;
+  left: 50%;
+  top: 0;
+  transform: translate3d(-50%, 0%, 0);
+  border-radius: 25px;
+  box-shadow: 0 3px 10px 3px rgba(0, 0, 0, 0.5), 0 0 5px 1px rgba(0, 0, 0, 0.6);
+  border: 1px solid rgba(255, 255, 255, 0.9);
+  background-color: rgba(0, 0, 0, 0.5);
+  transition: opacity 0.3s;
 }
 
-.initial-load-banner .v-list-item {
+.update-bar {
-  overflow: hidden;
+  background-color: rgba(255, 255, 255, 0.9);
+  width: 0;
+  height: 100%;
+  border-radius: 25px;
+  float: left;
+  transition: width 0.3s;
 }
 </style>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "yet-another-cad-viewer",
-  "version": "0.6.13",
+  "version": "0.8.8",
   "description": "",
   "license": "MIT",
   "private": true,
@@ -15,20 +15,22 @@
     "update-licenses": "generate-license-file --input package.json --output assets/licenses.txt --overwrite"
   },
   "dependencies": {
-    "@gltf-transform/core": "^3.10.0",
+    "@gltf-transform/core": "^3.10.1",
-    "@gltf-transform/functions": "^3.10.0",
+    "@gltf-transform/extensions": "^3.10.1",
+    "@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-mesh-bvh": "^0.7.3",
     "three-orientation-gizmo": "https://github.com/jrj2211/three-orientation-gizmo",
     "vue": "^3.4.21",
-    "vuetify": "^3.5.8"
+    "vuetify": "^3.5.13"
   },
   "devDependencies": {
-    "@tsconfig/node20": "^20.1.2",
+    "@tsconfig/node20": "^20.1.4",
-    "@types/node": "^20.11.25",
+    "@types/node": "^20.12.2",
     "@types/three": "^0.160.0",
     "@vitejs/plugin-vue": "^5.0.3",
     "@vitejs/plugin-vue-jsx": "^3.1.0",
@@ -37,9 +39,9 @@
     "commander": "^12.0.0",
     "generate-license-file": "^3.0.1",
     "npm-run-all2": "^6.1.1",
-    "terser": "^5.29.1",
+    "terser": "^5.30.0",
-    "typescript": "~5.4.2",
+    "typescript": "~5.4.3",
-    "vite": "^5.1.5",
+    "vite": "^5.2.7",
-    "vue-tsc": "^2.0.6"
+    "vue-tsc": "^2.0.7"
   }
 }

poetry.lock

@@ -34,12 +34,12 @@ test = ["astroid (>=1,<2)", "astroid (>=2,<4)", "pytest"]
 
 [[package]]
 name = "build123d"
-version = "0.4.0"
+version = "0.5.0"
 description = "A python CAD programming library"
 optional = false
 python-versions = ">=3.9"
 files = [
-    {file = "build123d-0.4.0-py3-none-any.whl", hash = "sha256:1a94089dea2427e09cae9b023c01ac9cb6fd0a61faf015252eb139af4263e180"},
+    {file = "build123d-0.5.0-py3-none-any.whl", hash = "sha256:d0a4e82cdb0e53ef21fca8d2c84124351d7c7070077b5efa173d789002c8194c"},
 ]
 
 [package.dependencies]
@@ -50,7 +50,7 @@ ipython = ">=8.0.0,<9"
 numpy = ">=1.24.1,<2"
 numpy-stl = ">=3.0.0,<4"
 ocpsvg = "*"
-py-lib3mf = "*"
+py-lib3mf = ">=2.3.1"
 svgpathtools = ">=1.5.1,<2"
 trianglesolver = "*"
 typing-extensions = ">=4.6.0,<5"
@@ -218,53 +218,53 @@ draw5 = ["Pillow", "PyMuPDF (>=1.20.0)", "PyQt5", "matplotlib"]
 
 [[package]]
 name = "fonttools"
-version = "4.49.0"
+version = "4.50.0"
 description = "Tools to manipulate font files"
 optional = false
 python-versions = ">=3.8"
 files = [
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+    {file = "fonttools-4.50.0-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:effd303fb422f8ce06543a36ca69148471144c534cc25f30e5be752bc4f46736"},
-    {file = "fonttools-4.49.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:ac9a745b7609f489faa65e1dc842168c18530874a5f5b742ac3dd79e26bca8bc"},
+    {file = "fonttools-4.50.0-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:7913992ab836f621d06aabac118fc258b9947a775a607e1a737eb3a91c360335"},
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+    {file = "fonttools-4.50.0-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:8e0a1c5bd2f63da4043b63888534b52c5a1fd7ae187c8ffc64cbb7ae475b9dab"},
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+    {file = "fonttools-4.50.0-cp39-cp39-win_amd64.whl", hash = "sha256:8639be40d583e5d9da67795aa3eeeda0488fb577a1d42ae11a5036f18fb16d93"},
-    {file = "fonttools-4.49.0-py3-none-any.whl", hash = "sha256:af281525e5dd7fa0b39fb1667b8d5ca0e2a9079967e14c4bfe90fd1cd13e0f18"},
+    {file = "fonttools-4.50.0-py3-none-any.whl", hash = "sha256:48fa36da06247aa8282766cfd63efff1bb24e55f020f29a335939ed3844d20d3"},
-    {file = "fonttools-4.49.0.tar.gz", hash = "sha256:ebf46e7f01b7af7861310417d7c49591a85d99146fc23a5ba82fdb28af156321"},
+    {file = "fonttools-4.50.0.tar.gz", hash = "sha256:fa5cf61058c7dbb104c2ac4e782bf1b2016a8cf2f69de6e4dd6a865d2c969bb5"},
 ]
 
 [package.extras]
@@ -318,17 +318,6 @@ qtconsole = ["qtconsole"]
 test = ["pickleshare", "pytest (<7.1)", "pytest-asyncio (<0.22)", "testpath"]
 test-extra = ["curio", "matplotlib (!=3.2.0)", "nbformat", "numpy (>=1.22)", "pandas", "pickleshare", "pytest (<7.1)", "pytest-asyncio (<0.22)", "testpath", "trio"]
 
-[[package]]
-name = "iterators"
-version = "0.2.0"
-description = "Iterator utility classes and functions"
-optional = false
-python-versions = ">=3.6"
-files = [
-    {file = "iterators-0.2.0-py3-none-any.whl", hash = "sha256:1d7ff03f576c9de0e01bac66209556c066d6b1fc45583a99cfc9f4645be7900e"},
-    {file = "iterators-0.2.0.tar.gz", hash = "sha256:e9927a1ea1ef081830fd1512f3916857c36bd4b37272819a6cd29d0f44431b97"},
-]
-
 [[package]]
 name = "jedi"
 version = "0.19.1"
@@ -350,13 +339,13 @@ testing = ["Django", "attrs", "colorama", "docopt", "pytest (<7.0.0)"]
 
 [[package]]
 name = "marshmallow"
-version = "3.21.0"
+version = "3.21.1"
 description = "A lightweight library for converting complex datatypes to and from native Python datatypes."
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "marshmallow-3.21.0-py3-none-any.whl", hash = "sha256:e7997f83571c7fd476042c2c188e4ee8a78900ca5e74bd9c8097afa56624e9bd"},
+    {file = "marshmallow-3.21.1-py3-none-any.whl", hash = "sha256:f085493f79efb0644f270a9bf2892843142d80d7174bbbd2f3713f2a589dc633"},
-    {file = "marshmallow-3.21.0.tar.gz", hash = "sha256:20f53be28c6e374a711a16165fb22a8dc6003e3f7cda1285e3ca777b9193885b"},
+    {file = "marshmallow-3.21.1.tar.gz", hash = "sha256:4e65e9e0d80fc9e609574b9983cf32579f305c718afb30d7233ab818571768c3"},
 ]
 
 [package.dependencies]
@@ -473,13 +462,13 @@ dev = ["pytest"]
 
 [[package]]
 name = "packaging"
-version = "23.2"
+version = "24.0"
 description = "Core utilities for Python packages"
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "packaging-23.2-py3-none-any.whl", hash = "sha256:8c491190033a9af7e1d931d0b5dacc2ef47509b34dd0de67ed209b5203fc88c7"},
+    {file = "packaging-24.0-py3-none-any.whl", hash = "sha256:2ddfb553fdf02fb784c234c7ba6ccc288296ceabec964ad2eae3777778130bc5"},
-    {file = "packaging-23.2.tar.gz", hash = "sha256:048fb0e9405036518eaaf48a55953c750c11e1a1b68e0dd1a9d62ed0c092cfc5"},
+    {file = "packaging-24.0.tar.gz", hash = "sha256:eb82c5e3e56209074766e6885bb04b8c38a0c015d0a30036ebe7ece34c9989e9"},
 ]
 
 [[package]]
@@ -637,12 +626,12 @@ tests = ["pytest"]
 
 [[package]]
 name = "py-lib3mf"
-version = "2.2.0"
+version = "2.3.1"
 description = "A python package for Lib3MF tools"
 optional = false
 python-versions = ">=3.9"
 files = [
-    {file = "py_lib3mf-2.2.0-py3-none-any.whl", hash = "sha256:d6d3c4e3d2f65d164b810c7c4d167cea3a75b7b68efd74e07d6f63fa6d527fa1"},
+    {file = "py_lib3mf-2.3.1-py3-none-any.whl", hash = "sha256:86a870ef386debba9b74683d3a08125a34c153aaa65e967f61677cc5a0a65e24"},
 ]
 
 [[package]]
@@ -676,13 +665,13 @@ windows-terminal = ["colorama (>=0.4.6)"]
 
 [[package]]
 name = "pyparsing"
-version = "3.1.1"
+version = "3.1.2"
 description = "pyparsing module - Classes and methods to define and execute parsing grammars"
 optional = false
 python-versions = ">=3.6.8"
 files = [
-    {file = "pyparsing-3.1.1-py3-none-any.whl", hash = "sha256:32c7c0b711493c72ff18a981d24f28aaf9c1fb7ed5e9667c9e84e3db623bdbfb"},
+    {file = "pyparsing-3.1.2-py3-none-any.whl", hash = "sha256:f9db75911801ed778fe61bb643079ff86601aca99fcae6345aa67292038fb742"},
-    {file = "pyparsing-3.1.1.tar.gz", hash = "sha256:ede28a1a32462f5a9705e07aea48001a08f7cf81a021585011deba701581a0db"},
+    {file = "pyparsing-3.1.2.tar.gz", hash = "sha256:a1bac0ce561155ecc3ed78ca94d3c9378656ad4c94c1270de543f621420f94ad"},
 ]
 
 [package.extras]
@@ -819,18 +808,18 @@ files = [
 
 [[package]]
 name = "traitlets"
-version = "5.14.1"
+version = "5.14.2"
 description = "Traitlets Python configuration system"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "traitlets-5.14.1-py3-none-any.whl", hash = "sha256:2e5a030e6eff91737c643231bfcf04a65b0132078dad75e4936700b213652e74"},
+    {file = "traitlets-5.14.2-py3-none-any.whl", hash = "sha256:fcdf85684a772ddeba87db2f398ce00b40ff550d1528c03c14dbf6a02003cd80"},
-    {file = "traitlets-5.14.1.tar.gz", hash = "sha256:8585105b371a04b8316a43d5ce29c098575c2e477850b62b848b964f1444527e"},
+    {file = "traitlets-5.14.2.tar.gz", hash = "sha256:8cdd83c040dab7d1dee822678e5f5d100b514f7b72b01615b26fc5718916fdf9"},
 ]
 
 [package.extras]
 docs = ["myst-parser", "pydata-sphinx-theme", "sphinx"]
-test = ["argcomplete (>=3.0.3)", "mypy (>=1.7.0)", "pre-commit", "pytest (>=7.0,<7.5)", "pytest-mock", "pytest-mypy-testing"]
+test = ["argcomplete (>=3.0.3)", "mypy (>=1.7.0)", "pre-commit", "pytest (>=7.0,<8.1)", "pytest-mock", "pytest-mypy-testing"]
 
 [[package]]
 name = "trianglesolver"
@@ -962,4 +951,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "d9746e99dd8861758730e68d12dc72d9ec5fb0101b3c070a7d7a373439c658a0"
+content-hash = "612c2f4fcc3ff9e37bc9e604bf092452138843ec4dc529dadc210887f0e728fd"

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "yacv-server"
-version = "0.6.13"
+version = "0.8.8"
 description = "Yet Another CAD Viewer (server)"
 authors = ["Yeicor <4929005+Yeicor@users.noreply.github.com>"]
 license = "MIT"
@@ -14,12 +14,11 @@ include = [
 python = "^3.9"
 
 # CAD
-build123d = "^0.4.0"
+build123d = "^0.5.0"
 
 # Misc
 pygltflib = "^1.16.2"
 pillow = "^10.2.0"
-iterators = "^0.2.0"
 
 [tool.poetry.build]
 generate-setup-file = false

vite.config.ts

@@ -26,8 +26,10 @@ export default defineConfig({
         }
     },
     build: {
-        assetsDir: '.',
+        assetsDir: '.', // Support deploying to a subdirectory using relative URLs
         cssCodeSplit: false, // Small enough to inline
+        chunkSizeWarningLimit: 550, // Three.js is big. Draco is even bigger but not likely to be used.
+        sourcemap: true, // For debugging production
     },
     define: {
         __APP_NAME__: JSON.stringify(name),

yacv_server/__init__.py

@@ -15,7 +15,7 @@ if 'YACV_DISABLE_SERVER' not in os.environ:
 # Expose some nice aliases using the default server instance
 show = yacv.show
 show_all = yacv.show_cad_all
-prepare_image = image_to_gltf
+image_to_gltf = image_to_gltf
 export_all = yacv.export_all
 remove = yacv.remove
 clear = yacv.clear

yacv_server/cad.py

@@ -2,10 +2,15 @@
 Utilities to work with CAD objects
 """
 import hashlib
-from typing import Optional, Union, List, Tuple
+import io
+import re
+from typing import Optional, Union, Tuple
 
+from OCP.TopExp import TopExp
 from OCP.TopLoc import TopLoc_Location
+from OCP.TopTools import TopTools_IndexedMapOfShape
 from OCP.TopoDS import TopoDS_Shape
+from build123d import Compound, Shape
 
 from yacv_server.gltf import GLTFMgr
 
@@ -40,27 +45,48 @@ def get_shape(obj: CADLike, error: bool = True) -> Optional[CADCoreLike]:
     if isinstance(obj, TopoDS_Shape):
         return obj
 
+    # Handle iterables like Build123d ShapeList by extracting all sub-shapes and making a compound
+    if isinstance(obj, list) or isinstance(obj, tuple) or isinstance(obj, set) or isinstance(obj, dict):
+        try:
+            if isinstance(obj, dict):
+                obj_iter = iter(obj.values())
+            else:
+                obj_iter = iter(obj)
+            # print(obj, ' -> ', obj_iter)
+            shapes_raw = [get_shape(sub_obj, error=False) for sub_obj in obj_iter]
+            # Silently drop non-shapes
+            shapes_raw_filtered = [shape for shape in shapes_raw if shape is not None]
+            if len(shapes_raw_filtered) > 0:  # Continue if we found at least one shape
+                # Sorting is required to improve hashcode consistency
+                shapes_raw_filtered_sorted = sorted(shapes_raw_filtered, key=lambda x: _hashcode(x))
+                # Build a single compound shape
+                shapes_bd = [Shape(shape) for shape in shapes_raw_filtered_sorted if shape is not None]
+                return get_shape(Compound(shapes_bd), error)
+        except TypeError:
+            pass
+
     if error:
         raise ValueError(f'Cannot show object of type {type(obj)} (submit issue?)')
     else:
         return None
 
 
-def grab_all_cad() -> List[Tuple[str, CADCoreLike]]:
+def grab_all_cad() -> set[Tuple[str, CADCoreLike]]:
     """ Grab all shapes by inspecting the stack """
     import inspect
     stack = inspect.stack()
-    shapes = []
+    shapes = set()
     for frame in stack:
         for key, value in frame.frame.f_locals.items():
             shape = get_shape(value, error=False)
-            if shape:
+            if shape and shape not in shapes:
-                shapes.append((key, shape))
+                shapes.add((key, shape))
     return shapes
 
 
 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') -> Tuple[bytes, str]:
+                  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
@@ -90,33 +116,40 @@ def image_to_gltf(source: str | bytes, center: any, width: Optional[float] = Non
     if not isinstance(center_loc, TopLoc_Location):
         raise ValueError('Center location not valid')
     plane = Plane(Location(center_loc))
-    # Convert coordinates system
-    plane.origin = Vector(plane.origin.X, plane.origin.Z, -plane.origin.Y)
-    plane.z_dir = -plane.y_dir
-    plane.y_dir = plane.z_dir
-
-    def vert(v: Vector) -> Tuple[float, float, float]:
-        return v.X, v.Y, v.Z
 
     # Load the image to a byte buffer
     img = Image.open(source)
     img_buf = io.BytesIO()
-    img.save(img_buf, format=format)
-    img_buf = img_buf.getvalue()
 
-    # Build the gltf
+    # Use the original dimensions for scaling the model
-    mgr = GLTFMgr(image=(img_buf, save_mime))
     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()
+
+    # Convert coordinates system as a last step (gltf is Y-up instead of Z-up)
+    def vert(v: Vector) -> Vector:
+        return Vector(v.X, v.Z, -v.Y)
+
+    # Build the gltf
+    mgr = GLTFMgr(image=(img_buf, save_mime))
     mgr.add_face([
-        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),
+        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),
@@ -125,7 +158,36 @@ def image_to_gltf(source: str | bytes, center: any, width: Optional[float] = Non
         (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
+
+
+def _hashcode(obj: Union[bytes, CADCoreLike], **extras) -> str:
+    """Utility to compute the STABLE hash code of a shape"""
+    # NOTE: obj.HashCode(MAX_HASH_CODE) is not stable across different runs of the same program
+    # This is best-effort and not guaranteed to be unique
+    hasher = hashlib.md5(usedforsecurity=False)
+    for k, v in extras.items():
+        hasher.update(str(k).encode())
+        hasher.update(str(v).encode())
+    if isinstance(obj, bytes):
+        hasher.update(obj)
+    elif isinstance(obj, TopLoc_Location):
+        sub_data = io.BytesIO()
+        obj.DumpJson(sub_data)
+        hasher.update(sub_data.getvalue())
+    elif isinstance(obj, TopoDS_Shape):
+        map_of_shapes = TopTools_IndexedMapOfShape()
+        TopExp.MapShapes_s(obj, map_of_shapes)
+        for i in range(1, map_of_shapes.Extent() + 1):
+            sub_shape = map_of_shapes.FindKey(i)
+            sub_data = io.BytesIO()
+            TopoDS_Shape.DumpJson(sub_shape, sub_data)
+            val = sub_data.getvalue()
+            val = re.sub(b'"this": "[^"]*"', b'', val)  # Remove memory address
+            hasher.update(val)
+    else:
+        raise ValueError(f'Cannot hash object of type {type(obj)}')
+    return hasher.hexdigest()

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)],
+            nodes=[Node(mesh=0)],  # TODO: Server-side detection of shallow copies --> nodes
-            meshes=[Mesh(primitives=[])],
+            meshes=[Mesh(primitives=[
-            accessors=[],
+                Primitive(indices=-1, attributes=Attributes(), mode=TRIANGLES, material=0,
-            bufferViews=[BufferView(buffer=0, byteLength=len(image[0]), byteOffset=0)],
+                          extras={"face_triangles_end": []}),
-            buffers=[Buffer(byteLength=len(image[0]))],
+                Primitive(indices=-1, attributes=Attributes(), mode=LINES, material=0,
-            samplers=[Sampler(magFilter=NEAREST)],
+                          extras={"edge_points_end": []}),
-            textures=[Texture(source=0, sampler=0)],
+                Primitive(indices=-1, attributes=Attributes(), mode=POINTS, material=0),
-            images=[Image(bufferView=0, mimeType=image[1])],
+            ])],
+            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]],
+    @property
-                 tex_coord_raw: List[Tuple[float, float]]):
+    def _faces_primitive(self) -> Primitive:
-        """Add a face to the GLTF as a new primitive of the unique mesh"""
+        return [p for p in self.gltf.meshes[0].primitives if p.mode == TRIANGLES][0]
-        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")
 
-    def add_edge(self, vertices_raw: List[Tuple[float, float, float]], mat: str = None):
+    @property
-        """Add an edge to the GLTF as a new primitive of the unique mesh"""
+    def _edges_primitive(self) -> Primitive:
-        vertices = np.array([[v[0], v[1], v[2]] for v in vertices_raw], dtype=np.float32)
+        return [p for p in self.gltf.meshes[0].primitives if p.mode == LINES][0]
-        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")
 
-    def add_vertex(self, vertex: Tuple[float, float, float]):
+    @property
-        """Add a vertex to the GLTF as a new primitive of the unique mesh"""
+    def _vertices_primitive(self) -> Primitive:
-        vertices = np.array([[vertex[0], vertex[1], vertex[2]]])
+        return [p for p in self.gltf.meshes[0].primitives if p.mode == POINTS][0]
-        indices = np.array([[0]], dtype=np.uint32)
+
-        tex_coord = np.array([], dtype=np.float32)
+    def add_face(self, vertices_raw: List[Vector], indices_raw: List[Tuple[int, int, int]],
-        self._add_any(vertices, indices, tex_coord, mode=POINTS, material="vertex")
+                 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"""
@@ -59,120 +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.x_dir))], color=(0.97, 0.24, 0.24, 1))
-        self.add_edge([vert(pl.origin), vert(pl.origin + pl.y_dir)], mat="locY")
+        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)], mat="locZ")
+        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:
+    def build(self) -> GLTF2:
-        """It is important to use a different material for each primitive to be able to change them at runtime"""
+        """Merge the intermediate data into the GLTF object and return it"""
-        new_material: Material
+        buffers_list: List[Tuple[Accessor, BufferView, bytes]] = []
-        if kind == "face":
+
-            new_material = Material(name="face", alphaCutoff=None, pbrMetallicRoughness=PbrMetallicRoughness(
+        if len(self.face_indices) > 0:
-                baseColorTexture=TextureInfo(index=0), baseColorFactor=[1, 1, 0.5, 1]), doubleSided=True)
+            self._faces_primitive.indices = len(buffers_list)
-        elif kind == "edge":
+            buffers_list.append(_gen_buffer_metadata(self.face_indices, 1))
-            new_material = Material(name="edge", alphaCutoff=None, pbrMetallicRoughness=PbrMetallicRoughness(
+            self._faces_primitive.attributes.POSITION = len(buffers_list)
-                baseColorFactor=[0, 0, 0.5, 1]))
+            buffers_list.append(_gen_buffer_metadata(self.face_positions, 3))
-        elif kind == "vertex":
+            self._faces_primitive.attributes.TEXCOORD_0 = len(buffers_list)
-            new_material = Material(name="vertex", alphaCutoff=None, pbrMetallicRoughness=PbrMetallicRoughness(
+            buffers_list.append(_gen_buffer_metadata(self.face_tex_coords, 2))
-                baseColorFactor=[0, 0.3, 0.3, 1]))
+            self._faces_primitive.attributes.COLOR_0 = len(buffers_list)
-        elif kind == "locX":
+            buffers_list.append(_gen_buffer_metadata(self.face_colors, 4))
-            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]))
         else:
-            raise ValueError(f"Unknown material kind {kind}")
+            self.image = None  # Unused image
-        self.gltf.materials.append(new_material)
+            self.gltf.meshes[0].primitives = list(  # Remove unused faces primitive
-        return len(self.gltf.materials) - 1
+                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,
+        edges_and_vertices_mat = 0
-                 material: str = "face"):
+        if self.image is not None and (len(self.edge_indices) > 0 or len(self.vertex_indices) > 0):
-        assert vertices.ndim == 2
+            # Create a material without texture for edges and vertices
-        assert vertices.shape[1] == 3
+            edges_and_vertices_mat = len(self.gltf.materials)
-        vertices = vertices.astype(np.float32)
+            new_mat = copy.deepcopy(self.gltf.materials[0])
-        vertices_blob = vertices.tobytes()
+            new_mat.pbrMetallicRoughness.baseColorTexture = None
+            self.gltf.materials.append(new_mat)
 
-        assert indices.ndim == 2
+        # Treat edges and vertices the same way
-        assert indices.shape[1] == 3 and mode == TRIANGLES or indices.shape[1] == 2 and mode == LINE_STRIP or \
+        for (indices, positions, colors, primitive, kind) in [
-               indices.shape[1] == 1 and mode == POINTS
+            (self.edge_indices, self.edge_positions, self.edge_colors, self._edges_primitive, LINES),
-        indices = indices.astype(np.uint32)
+            (self.vertex_indices, self.vertex_positions, self.vertex_colors, self._vertices_primitive, POINTS)
-        indices_blob = indices.flatten().tobytes()
+        ]:
+            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
+        if self.image is not None:  # Add texture last as it creates a fake accessor that is not added!
-        # This can happen on broken faces like on some fonts
+            self.gltf.images = [Image(bufferView=len(buffers_list), mimeType=self.image[1])]
-        # assert indices.max() == len(vertices) - 1, f"{indices.max()} != {len(vertices) - 1}"
+            self.gltf.textures = [Texture(source=0, sampler=0)]
-        # assert indices.min() == 0, f"min({indices}) != 0"
+            self.gltf.samplers = [Sampler(magFilter=NEAREST)]
-        # assert np.unique(indices.flatten()).size == len(vertices)
+            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
+        # Once all the data is ready, we can concatenate the buffers updating the accessors and views
-        assert len(tex_coord) == 0 or tex_coord.shape[1] == 2
+        prev_binary_blob = self.gltf.binary_blob() or b''
-        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()
         byte_offset_base = len(prev_binary_blob)
-        self.gltf.bufferViews.extend([bv for bv in [
+        for accessor, bufferView, blob in buffers_list:
-            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])
 
-        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

@@ -19,16 +19,15 @@ def build_logo(text: bool = True) -> Dict[str, Union[Part, Location, str]]:
                 Text('Yet Another\nCAD Viewer', 7, font_path='/usr/share/fonts/TTF/OpenSans-Regular.ttf')
             extrude(amount=1)
 
-    logo_img_location = logo_obj.faces().group_by(Axis.X)[0].face().center_location  # Avoid overlapping:
+    logo_img_location = logo_obj.faces().group_by(Axis.X)[0].face().center_location
-    logo_img_location.position = Vector(logo_img_location.position.X - 4e-2, logo_img_location.position.Y,
+    logo_img_location *= Location((0, 0, 4e-2), (0, 0, 90))  # Avoid overlapping and adjust placement
-                                        logo_img_location.position.Z)
 
     logo_img_path = os.path.join(ASSETS_DIR, 'img.jpg')
-    img_bytes, img_name = prepare_image(logo_img_path, logo_img_location, height=18)
+    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_bytes}
+    return {'fox': fox_glb_bytes, 'logo': logo_obj, 'location': logo_img_location, img_name: img_glb_bytes}
 
 
 if __name__ == "__main__":
@@ -43,7 +42,7 @@ if __name__ == "__main__":
         # 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, remove, prepare_image, show
+    from yacv_server import export_all, show, image_to_gltf
 
     # Build the CAD part of the logo
     logo = build_logo()
@@ -52,7 +51,8 @@ if __name__ == "__main__":
     show(*[obj for obj in logo.values()], names=[name for name in logo.keys()])
 
     if testing_server:
-        remove('location')  # Test removing a part
+        # 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'))

yacv_server/myhttp.py

@@ -1,12 +1,9 @@
 import io
 import os
-import threading
 import urllib.parse
 from http import HTTPStatus
 from http.server import SimpleHTTPRequestHandler
 
-from iterators import TimeoutIterator
-
 from yacv_server.mylogger import logger
 
 # Find the frontend folder (optional, but recommended)
@@ -26,13 +23,9 @@ OBJECTS_API_PATH = '/api/object'  # /{name}
 
 class HTTPHandler(SimpleHTTPRequestHandler):
     yacv: 'yacv.YACV'
-    frontend_lock: threading.Lock  # To avoid exiting too early while frontend makes requests
-    at_least_one_client: threading.Event
 
     def __init__(self, *args, yacv: 'yacv.YACV', **kwargs):
         self.yacv = yacv
-        self.frontend_lock = threading.Lock()
-        self.at_least_one_client = threading.Event()
         super().__init__(*args, **kwargs, directory=FRONTEND_BASE_PATH)
 
     def log_message(self, fmt, *args):
@@ -77,14 +70,23 @@ class HTTPHandler(SimpleHTTPRequestHandler):
 
     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()
-        self.at_least_one_client.set()
-        logger.debug('Updates client connected')
 
             def write_chunk(_chunk_data: str):
                 self.wfile.write(hex(len(_chunk_data))[2:].encode('utf-8'))
@@ -95,20 +97,9 @@ class HTTPHandler(SimpleHTTPRequestHandler):
 
             write_chunk('retry: 100\n\n')
 
-        # Send buffered events first, while keeping a lock
+            subscription = self.yacv.show_events.subscribe(yield_timeout=1.0)  # Keep-alive interval
-        with self.frontend_lock:
-            for data in self.yacv.show_events.buffer():
-                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')
-
-        # Send future events over the same connection
-        # Also send keep-alive to know if the client is still connected
-        subscription = self.yacv.show_events.subscribe(include_buffered=False)
-        it = TimeoutIterator(subscription, sentinel=None, reset_on_next=True, timeout=5.0)  # Keep-alive interval
             try:
-            for data in it:
+                for data in subscription:
                     if data is None:
                         write_chunk(':keep-alive\n\n')
                     else:
@@ -119,27 +110,25 @@ class HTTPHandler(SimpleHTTPRequestHandler):
             except BrokenPipeError:  # Client disconnected normally
                 pass
             finally:
-            logger.debug('Updates client disconnected')
-            try:
-                it.interrupt()
-                next(it)  # Make sure the iterator is interrupted before trying to close the subscription
                 subscription.close()
-            except BaseException as e:
+
-                logger.debug('Ignoring error while closing subscription: %s', e)
+        logger.debug('Updates client disconnected')
 
     def _api_object(self, obj_name: str):
         """Returns the object file with the matching name, building it if necessary."""
-        with self.frontend_lock:
         # Export the object (or fail if not found)
-            exported_glb = self.yacv.export(obj_name)
+        _export = self.yacv.export(obj_name)
-            if exported_glb is None:
+        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/pubsub.py

@@ -1,4 +1,4 @@
-import threading
+import queue
 import queue
 import threading
 from typing import List, TypeVar, \
@@ -8,6 +8,8 @@ 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 threading and buffering all previous events"""
@@ -45,7 +47,7 @@ class BufferedPubSub(Generic[T]):
                 for event in self._buffer:
                     q.put(event)
             if not include_future:
-                q.put(None)
+                q.put(_end_of_queue)
         return q
 
     def _unsubscribe(self, q: queue.Queue[T]):
@@ -54,14 +56,18 @@ class BufferedPubSub(Generic[T]):
             self._subscribers.remove(q)
         logger.debug(f"Unsubscribed from %s (%d subscribers)", self, len(self._subscribers))
 
-    def subscribe(self, include_buffered: bool = True, include_future: bool = True) -> Generator[T, None, None]:
+    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 = 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

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/tessellate.py

@@ -1,14 +1,9 @@
-import hashlib
+from typing import List, Dict, Tuple
-import io
-import re
-from typing import List, Dict, Tuple, Union
 
 from OCP.BRep import BRep_Tool
 from OCP.BRepAdaptor import BRepAdaptor_Curve
 from OCP.GCPnts import GCPnts_TangentialDeflection
-from OCP.TopExp import TopExp
 from OCP.TopLoc import TopLoc_Location
-from OCP.TopTools import TopTools_IndexedMapOfShape
 from OCP.TopoDS import TopoDS_Face, TopoDS_Edge, TopoDS_Shape, TopoDS_Vertex
 from build123d import Shape, Vertex, Face, Location
 from pygltflib import GLTF2
@@ -36,8 +31,8 @@ def tessellate(
         shape = Shape(cad_like)
 
         # Perform tessellation tasks
-        edge_to_faces: Dict[TopoDS_Edge, List[TopoDS_Face]] = {}
+        edge_to_faces: Dict[str, List[TopoDS_Face]] = {}
-        vertex_to_faces: Dict[TopoDS_Vertex, 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)
@@ -55,7 +50,7 @@ def tessellate(
             for vertex in shape.vertices():
                 _tessellate_vertex(mgr, vertex.wrapped, vertex_to_faces.get(vertex.wrapped, []))
 
-    return mgr.gltf
+    return mgr.build()
 
 
 def _tessellate_face(
@@ -65,12 +60,12 @@ 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:
         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 +73,7 @@ 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 +86,9 @@ 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
+        # NOTE: Don't overdo it, or metrics will be (more) wrong
-        n = len(faces) / 1e-3
+        n = 1e-3 / len(faces)
-        push_dir = (push_dir[0] / n, push_dir[1] / n, push_dir[2] / n)
+        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 +114,9 @@ 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)
 
 
@@ -127,30 +125,3 @@ def _tessellate_vertex(mgr: GLTFMgr, ocp_vertex: TopoDS_Vertex, faces: List[Topo
     mgr.add_vertex(_push_point((c.X, c.Y, c.Z), faces))
 
 
-def _hashcode(obj: Union[bytes, TopoDS_Shape], **extras) -> str:
-    """Utility to compute the hash code of a shape recursively without the need to tessellate it"""
-    # NOTE: obj.HashCode(MAX_HASH_CODE) is not stable across different runs of the same program
-    # This is best-effort and not guaranteed to be unique
-    hasher = hashlib.md5(usedforsecurity=False)
-    for k, v in extras.items():
-        hasher.update(str(k).encode())
-        hasher.update(str(v).encode())
-    if isinstance(obj, bytes):
-        hasher.update(obj)
-    elif isinstance(obj, TopLoc_Location):
-        sub_data = io.BytesIO()
-        obj.DumpJson(sub_data)
-        hasher.update(sub_data.getvalue())
-    elif isinstance(obj, TopoDS_Shape):
-        map_of_shapes = TopTools_IndexedMapOfShape()
-        TopExp.MapShapes_s(obj, map_of_shapes)
-        for i in range(1, map_of_shapes.Extent() + 1):
-            sub_shape = map_of_shapes.FindKey(i)
-            sub_data = io.BytesIO()
-            TopoDS_Shape.DumpJson(sub_shape, sub_data)
-            val = sub_data.getvalue()
-            val = re.sub(b'"this": "[^"]*"', b'', val)  # Remove memory address
-            hasher.update(val)
-    else:
-        raise ValueError(f'Cannot hash object of type {type(obj)}')
-    return hasher.hexdigest()

yacv_server/yacv.py

@@ -10,7 +10,7 @@ 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
+from typing import Optional, Dict, Union, Callable, List, Tuple
 
 from OCP.TopLoc import TopLoc_Location
 from OCP.TopoDS import TopoDS_Shape
@@ -22,7 +22,9 @@ 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.tessellate import _hashcode, tessellate
+from yacv_server.rwlock import RWLock
+from yacv_server.tessellate import tessellate
+from yacv_server.cad import _hashcode
 
 
 @dataclass_json
@@ -33,8 +35,8 @@ class UpdatesApiData:
     """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: bool
+    is_remove: Optional[bool]
-    """Whether to remove the object from the scene"""
+    """Whether to remove the object from the scene. If None, this is a shutdown request"""
 
 
 YACVSupported = Union[bytes, CADCoreLike]
@@ -46,7 +48,7 @@ class UpdatesApiFullData(UpdatesApiData):
     kwargs: Optional[Dict[str, any]]
     """The show_object options, if any (not serialized)"""
 
-    def __init__(self, obj: YACVSupported, name: str, _hash: str, is_remove: bool = False,
+    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
@@ -60,22 +62,42 @@ class UpdatesApiFullData(UpdatesApiData):
 
 
 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]]
-    object_events_lock: threading.Lock
+    """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.at_least_one_client = threading.Event()
         self.show_events = BufferedPubSub()
         self.build_events = {}
-        self.object_events_lock = threading.Lock()
+        self.build_events_lock = threading.Lock()
-        self.frontend_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):
@@ -100,36 +122,34 @@ class YACV:
             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))
-        graceful_secs_request = float(os.getenv('YACV_GRACEFUL_SECS_REQUEST', 5.0))
+        if graceful_secs_connect > 0:
-        # Make sure we can hold the lock for more than 100ms (to avoid exiting too early)
-        logger.info('Stopping server (waiting for at least one frontend request first, cancel with CTRL+C)...')
             start = time.time()
             try:
-            while not self.at_least_one_client.wait(
+                if not self.at_least_one_client.is_set():
-                    graceful_secs_connect / 10) and time.time() - start < graceful_secs_connect:
+                    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
 
-        logger.info('Stopping server (waiting for no more frontend requests)...')
+        # Wait for the server to stop gracefully (all frontends to stop working)
-        start = time.time()
+        graceful_secs_request = float(os.getenv('YACV_GRACEFUL_SECS_WORK', 1000000))
-        try:
+        with self.frontend_lock.w_locked(timeout=graceful_secs_request):
-            while time.time() - start < graceful_secs_request:
+            # Stop the server
-                if self.frontend_lock.locked():
-                    start = time.time()
-                time.sleep(0.01)
-        except KeyboardInterrupt:
-            pass
-
-        # Stop the server in the background
             self.server.shutdown()
-        logger.info('Stopping server (sent)...')
 
-        # Wait for the server to stop gracefully
+            # Wait for the server thread to stop
             self.server_thread.join(timeout=30)
             self.server_thread = None
-        logger.info('Stopping server (confirmed)...')
             if len(args) >= 1 and args[0] in (signal.SIGINT, signal.SIGTERM):
                 sys.exit(0)  # Exit with success
 
@@ -175,7 +195,7 @@ class YACV:
 
     def show_cad_all(self, **kwargs):
         """Publishes all CAD objects in the current scope to the server"""
-        all_cad = grab_all_cad()
+        all_cad = list(grab_all_cad())  # List for reproducible iteration order
         self.show(*[cad for _, cad in all_cad], names=[name for name, _ in all_cad], **kwargs)
 
     def remove(self, name: str):
@@ -187,7 +207,7 @@ class YACV:
                 self.show_events.delete(old_show_event)
 
             # Delete any cached object builds
-            with self.object_events_lock:
+            with self.build_events_lock:
                 if name in self.build_events:
                     del self.build_events[name]
 
@@ -206,13 +226,13 @@ class YACV:
 
     def shown_object_names(self, apply_removes: bool = True) -> List[str]:
         """Returns the names of all objects that have been shown"""
-        res = []
+        res = set()
         for obj in self.show_events.buffer():
             if not obj.is_remove or not apply_removes:
-                res.append(obj.name)
+                res.add(obj.name)
             else:
-                res.remove(obj.name)
+                res.discard(obj.name)
-        return res
+        return list(res)
 
     def _show_events(self, name: str, apply_removes: bool = True) -> List[UpdatesApiFullData]:
         """Returns the show events with the given name"""
@@ -228,8 +248,8 @@ class YACV:
                             res.remove(old_event)
         return res
 
-    def export(self, name: str) -> Optional[bytes]:
+    def export(self, name: str) -> Optional[Tuple[bytes, str]]:
-        """Export the given previously-shown object to a single GLB file, building it if necessary."""
+        """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
@@ -240,7 +260,7 @@ class YACV:
         event = events[-1]
 
         # Use the lock to ensure that we don't build the object twice
-        with self.object_events_lock:
+        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)
@@ -259,14 +279,15 @@ class YACV:
                                       edges=event.kwargs.get('edges', True),
                                       vertices=event.kwargs.get('vertices', True))
                     glb_list_of_bytes = gltf.save_to_bytes()
-                    publish_to.publish(b''.join(glb_list_of_bytes))
+                    glb_bytes = b''.join(glb_list_of_bytes)
-                    logger.info('export(%s) took %.3f seconds, %d parts', name, time.time() - start,
+                    publish_to.publish(glb_bytes)
-                                len(gltf.meshes[0].primitives))
+                    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)
+                return next(subscription), event.hash
             finally:
                 subscription.close()
 
@@ -277,7 +298,7 @@ class YACV:
         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))
+                    f.write(self.export(name)[0])
 
 
 # noinspection PyUnusedLocal
@@ -305,9 +326,18 @@ _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, error=False) or obj
     for frame in inspect.stack()[avoid_levels:]:
         for key, value in frame.frame.f_locals.items():
-            if value is obj:
+            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":
+"@esbuild/aix-ppc64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/aix-ppc64/-/aix-ppc64-0.19.12.tgz#d1bc06aedb6936b3b6d313bf809a5a40387d2b7f"
+  resolved "https://registry.yarnpkg.com/@esbuild/aix-ppc64/-/aix-ppc64-0.20.2.tgz#a70f4ac11c6a1dfc18b8bbb13284155d933b9537"
-  integrity sha512-bmoCYyWdEL3wDQIVbcyzRyeKLgk2WtWLTWz1ZIAZF/EGbNOwSA6ew3PftJ1PqMiOOGu0OyFMzG53L0zqIpPeNA==
+  integrity sha512-D+EBOJHXdNZcLJRBkhENNG8Wji2kgc9AZ9KiPr1JuZjsNtyHzrsfLRrY0tk2H2aoFu6RANO1y1iPPUCDYWkb5g==
 
-"@esbuild/android-arm64@0.19.12":
+"@esbuild/android-arm64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/android-arm64/-/android-arm64-0.19.12.tgz#7ad65a36cfdb7e0d429c353e00f680d737c2aed4"
+  resolved "https://registry.yarnpkg.com/@esbuild/android-arm64/-/android-arm64-0.20.2.tgz#db1c9202a5bc92ea04c7b6840f1bbe09ebf9e6b9"
-  integrity sha512-P0UVNGIienjZv3f5zq0DP3Nt2IE/3plFzuaS96vihvD0Hd6H/q4WXUGpCxD/E8YrSXfNyRPbpTq+T8ZQioSuPA==
+  integrity sha512-mRzjLacRtl/tWU0SvD8lUEwb61yP9cqQo6noDZP/O8VkwafSYwZ4yWy24kan8jE/IMERpYncRt2dw438LP3Xmg==
 
-"@esbuild/android-arm@0.19.12":
+"@esbuild/android-arm@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/android-arm/-/android-arm-0.19.12.tgz#b0c26536f37776162ca8bde25e42040c203f2824"
+  resolved "https://registry.yarnpkg.com/@esbuild/android-arm/-/android-arm-0.20.2.tgz#3b488c49aee9d491c2c8f98a909b785870d6e995"
-  integrity sha512-qg/Lj1mu3CdQlDEEiWrlC4eaPZ1KztwGJ9B6J+/6G+/4ewxJg7gqj8eVYWvao1bXrqGiW2rsBZFSX3q2lcW05w==
+  integrity sha512-t98Ra6pw2VaDhqNWO2Oph2LXbz/EJcnLmKLGBJwEwXX/JAN83Fym1rU8l0JUWK6HkIbWONCSSatf4sf2NBRx/w==
 
-"@esbuild/android-x64@0.19.12":
+"@esbuild/android-x64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/android-x64/-/android-x64-0.19.12.tgz#cb13e2211282012194d89bf3bfe7721273473b3d"
+  resolved "https://registry.yarnpkg.com/@esbuild/android-x64/-/android-x64-0.20.2.tgz#3b1628029e5576249d2b2d766696e50768449f98"
-  integrity sha512-3k7ZoUW6Q6YqhdhIaq/WZ7HwBpnFBlW905Fa4s4qWJyiNOgT1dOqDiVAQFwBH7gBRZr17gLrlFCRzF6jFh7Kew==
+  integrity sha512-btzExgV+/lMGDDa194CcUQm53ncxzeBrWJcncOBxuC6ndBkKxnHdFJn86mCIgTELsooUmwUm9FkhSp5HYu00Rg==
 
-"@esbuild/darwin-arm64@0.19.12":
+"@esbuild/darwin-arm64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/darwin-arm64/-/darwin-arm64-0.19.12.tgz#cbee41e988020d4b516e9d9e44dd29200996275e"
+  resolved "https://registry.yarnpkg.com/@esbuild/darwin-arm64/-/darwin-arm64-0.20.2.tgz#6e8517a045ddd86ae30c6608c8475ebc0c4000bb"
-  integrity sha512-B6IeSgZgtEzGC42jsI+YYu9Z3HKRxp8ZT3cqhvliEHovq8HSX2YX8lNocDn79gCKJXOSaEot9MVYky7AKjCs8g==
+  integrity sha512-4J6IRT+10J3aJH3l1yzEg9y3wkTDgDk7TSDFX+wKFiWjqWp/iCfLIYzGyasx9l0SAFPT1HwSCR+0w/h1ES/MjA==
 
-"@esbuild/darwin-x64@0.19.12":
+"@esbuild/darwin-x64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/darwin-x64/-/darwin-x64-0.19.12.tgz#e37d9633246d52aecf491ee916ece709f9d5f4cd"
+  resolved "https://registry.yarnpkg.com/@esbuild/darwin-x64/-/darwin-x64-0.20.2.tgz#90ed098e1f9dd8a9381695b207e1cff45540a0d0"
-  integrity sha512-hKoVkKzFiToTgn+41qGhsUJXFlIjxI/jSYeZf3ugemDYZldIXIxhvwN6erJGlX4t5h417iFuheZ7l+YVn05N3A==
+  integrity sha512-tBcXp9KNphnNH0dfhv8KYkZhjc+H3XBkF5DKtswJblV7KlT9EI2+jeA8DgBjp908WEuYll6pF+UStUCfEpdysA==
 
-"@esbuild/freebsd-arm64@0.19.12":
+"@esbuild/freebsd-arm64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/freebsd-arm64/-/freebsd-arm64-0.19.12.tgz#1ee4d8b682ed363b08af74d1ea2b2b4dbba76487"
+  resolved "https://registry.yarnpkg.com/@esbuild/freebsd-arm64/-/freebsd-arm64-0.20.2.tgz#d71502d1ee89a1130327e890364666c760a2a911"
-  integrity sha512-4aRvFIXmwAcDBw9AueDQ2YnGmz5L6obe5kmPT8Vd+/+x/JMVKCgdcRwH6APrbpNXsPz+K653Qg8HB/oXvXVukA==
+  integrity sha512-d3qI41G4SuLiCGCFGUrKsSeTXyWG6yem1KcGZVS+3FYlYhtNoNgYrWcvkOoaqMhwXSMrZRl69ArHsGJ9mYdbbw==
 
-"@esbuild/freebsd-x64@0.19.12":
+"@esbuild/freebsd-x64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/freebsd-x64/-/freebsd-x64-0.19.12.tgz#37a693553d42ff77cd7126764b535fb6cc28a11c"
+  resolved "https://registry.yarnpkg.com/@esbuild/freebsd-x64/-/freebsd-x64-0.20.2.tgz#aa5ea58d9c1dd9af688b8b6f63ef0d3d60cea53c"
-  integrity sha512-EYoXZ4d8xtBoVN7CEwWY2IN4ho76xjYXqSXMNccFSx2lgqOG/1TBPW0yPx1bJZk94qu3tX0fycJeeQsKovA8gg==
+  integrity sha512-d+DipyvHRuqEeM5zDivKV1KuXn9WeRX6vqSqIDgwIfPQtwMP4jaDsQsDncjTDDsExT4lR/91OLjRo8bmC1e+Cw==
 
-"@esbuild/linux-arm64@0.19.12":
+"@esbuild/linux-arm64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-arm64/-/linux-arm64-0.19.12.tgz#be9b145985ec6c57470e0e051d887b09dddb2d4b"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-arm64/-/linux-arm64-0.20.2.tgz#055b63725df678379b0f6db9d0fa85463755b2e5"
-  integrity sha512-EoTjyYyLuVPfdPLsGVVVC8a0p1BFFvtpQDB/YLEhaXyf/5bczaGeN15QkR+O4S5LeJ92Tqotve7i1jn35qwvdA==
+  integrity sha512-9pb6rBjGvTFNira2FLIWqDk/uaf42sSyLE8j1rnUpuzsODBq7FvpwHYZxQ/It/8b+QOS1RYfqgGFNLRI+qlq2A==
 
-"@esbuild/linux-arm@0.19.12":
+"@esbuild/linux-arm@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-arm/-/linux-arm-0.19.12.tgz#207ecd982a8db95f7b5279207d0ff2331acf5eef"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-arm/-/linux-arm-0.20.2.tgz#76b3b98cb1f87936fbc37f073efabad49dcd889c"
-  integrity sha512-J5jPms//KhSNv+LO1S1TX1UWp1ucM6N6XuL6ITdKWElCu8wXP72l9MM0zDTzzeikVyqFE6U8YAV9/tFyj0ti+w==
+  integrity sha512-VhLPeR8HTMPccbuWWcEUD1Az68TqaTYyj6nfE4QByZIQEQVWBB8vup8PpR7y1QHL3CpcF6xd5WVBU/+SBEvGTg==
 
-"@esbuild/linux-ia32@0.19.12":
+"@esbuild/linux-ia32@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-ia32/-/linux-ia32-0.19.12.tgz#d0d86b5ca1562523dc284a6723293a52d5860601"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-ia32/-/linux-ia32-0.20.2.tgz#c0e5e787c285264e5dfc7a79f04b8b4eefdad7fa"
-  integrity sha512-Thsa42rrP1+UIGaWz47uydHSBOgTUnwBwNq59khgIwktK6x60Hivfbux9iNR0eHCHzOLjLMLfUMLCypBkZXMHA==
+  integrity sha512-o10utieEkNPFDZFQm9CoP7Tvb33UutoJqg3qKf1PWVeeJhJw0Q347PxMvBgVVFgouYLGIhFYG0UGdBumROyiig==
 
-"@esbuild/linux-loong64@0.19.12":
+"@esbuild/linux-loong64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-loong64/-/linux-loong64-0.19.12.tgz#9a37f87fec4b8408e682b528391fa22afd952299"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-loong64/-/linux-loong64-0.20.2.tgz#a6184e62bd7cdc63e0c0448b83801001653219c5"
-  integrity sha512-LiXdXA0s3IqRRjm6rV6XaWATScKAXjI4R4LoDlvO7+yQqFdlr1Bax62sRwkVvRIrwXxvtYEHHI4dm50jAXkuAA==
+  integrity sha512-PR7sp6R/UC4CFVomVINKJ80pMFlfDfMQMYynX7t1tNTeivQ6XdX5r2XovMmha/VjR1YN/HgHWsVcTRIMkymrgQ==
 
-"@esbuild/linux-mips64el@0.19.12":
+"@esbuild/linux-mips64el@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-mips64el/-/linux-mips64el-0.19.12.tgz#4ddebd4e6eeba20b509d8e74c8e30d8ace0b89ec"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-mips64el/-/linux-mips64el-0.20.2.tgz#d08e39ce86f45ef8fc88549d29c62b8acf5649aa"
-  integrity sha512-fEnAuj5VGTanfJ07ff0gOA6IPsvrVHLVb6Lyd1g2/ed67oU1eFzL0r9WL7ZzscD+/N6i3dWumGE1Un4f7Amf+w==
+  integrity sha512-4BlTqeutE/KnOiTG5Y6Sb/Hw6hsBOZapOVF6njAESHInhlQAghVVZL1ZpIctBOoTFbQyGW+LsVYZ8lSSB3wkjA==
 
-"@esbuild/linux-ppc64@0.19.12":
+"@esbuild/linux-ppc64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-ppc64/-/linux-ppc64-0.19.12.tgz#adb67dadb73656849f63cd522f5ecb351dd8dee8"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-ppc64/-/linux-ppc64-0.20.2.tgz#8d252f0b7756ffd6d1cbde5ea67ff8fd20437f20"
-  integrity sha512-nYJA2/QPimDQOh1rKWedNOe3Gfc8PabU7HT3iXWtNUbRzXS9+vgB0Fjaqr//XNbd82mCxHzik2qotuI89cfixg==
+  integrity sha512-rD3KsaDprDcfajSKdn25ooz5J5/fWBylaaXkuotBDGnMnDP1Uv5DLAN/45qfnf3JDYyJv/ytGHQaziHUdyzaAg==
 
-"@esbuild/linux-riscv64@0.19.12":
+"@esbuild/linux-riscv64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-riscv64/-/linux-riscv64-0.19.12.tgz#11bc0698bf0a2abf8727f1c7ace2112612c15adf"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-riscv64/-/linux-riscv64-0.20.2.tgz#19f6dcdb14409dae607f66ca1181dd4e9db81300"
-  integrity sha512-2MueBrlPQCw5dVJJpQdUYgeqIzDQgw3QtiAHUC4RBz9FXPrskyyU3VI1hw7C0BSKB9OduwSJ79FTCqtGMWqJHg==
+  integrity sha512-snwmBKacKmwTMmhLlz/3aH1Q9T8v45bKYGE3j26TsaOVtjIag4wLfWSiZykXzXuE1kbCE+zJRmwp+ZbIHinnVg==
 
-"@esbuild/linux-s390x@0.19.12":
+"@esbuild/linux-s390x@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-s390x/-/linux-s390x-0.19.12.tgz#e86fb8ffba7c5c92ba91fc3b27ed5a70196c3cc8"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-s390x/-/linux-s390x-0.20.2.tgz#3c830c90f1a5d7dd1473d5595ea4ebb920988685"
-  integrity sha512-+Pil1Nv3Umes4m3AZKqA2anfhJiVmNCYkPchwFJNEJN5QxmTs1uzyy4TvmDrCRNT2ApwSari7ZIgrPeUx4UZDg==
+  integrity sha512-wcWISOobRWNm3cezm5HOZcYz1sKoHLd8VL1dl309DiixxVFoFe/o8HnwuIwn6sXre88Nwj+VwZUvJf4AFxkyrQ==
 
-"@esbuild/linux-x64@0.19.12":
+"@esbuild/linux-x64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/linux-x64/-/linux-x64-0.19.12.tgz#5f37cfdc705aea687dfe5dfbec086a05acfe9c78"
+  resolved "https://registry.yarnpkg.com/@esbuild/linux-x64/-/linux-x64-0.20.2.tgz#86eca35203afc0d9de0694c64ec0ab0a378f6fff"
-  integrity sha512-B71g1QpxfwBvNrfyJdVDexenDIt1CiDN1TIXLbhOw0KhJzE78KIFGX6OJ9MrtC0oOqMWf+0xop4qEU8JrJTwCg==
+  integrity sha512-1MdwI6OOTsfQfek8sLwgyjOXAu+wKhLEoaOLTjbijk6E2WONYpH9ZU2mNtR+lZ2B4uwr+usqGuVfFT9tMtGvGw==
 
-"@esbuild/netbsd-x64@0.19.12":
+"@esbuild/netbsd-x64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/netbsd-x64/-/netbsd-x64-0.19.12.tgz#29da566a75324e0d0dd7e47519ba2f7ef168657b"
+  resolved "https://registry.yarnpkg.com/@esbuild/netbsd-x64/-/netbsd-x64-0.20.2.tgz#e771c8eb0e0f6e1877ffd4220036b98aed5915e6"
-  integrity sha512-3ltjQ7n1owJgFbuC61Oj++XhtzmymoCihNFgT84UAmJnxJfm4sYCiSLTXZtE00VWYpPMYc+ZQmB6xbSdVh0JWA==
+  integrity sha512-K8/DhBxcVQkzYc43yJXDSyjlFeHQJBiowJ0uVL6Tor3jGQfSGHNNJcWxNbOI8v5k82prYqzPuwkzHt3J1T1iZQ==
 
-"@esbuild/openbsd-x64@0.19.12":
+"@esbuild/openbsd-x64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/openbsd-x64/-/openbsd-x64-0.19.12.tgz#306c0acbdb5a99c95be98bdd1d47c916e7dc3ff0"
+  resolved "https://registry.yarnpkg.com/@esbuild/openbsd-x64/-/openbsd-x64-0.20.2.tgz#9a795ae4b4e37e674f0f4d716f3e226dd7c39baf"
-  integrity sha512-RbrfTB9SWsr0kWmb9srfF+L933uMDdu9BIzdA7os2t0TXhCRjrQyCeOt6wVxr79CKD4c+p+YhCj31HBkYcXebw==
+  integrity sha512-eMpKlV0SThJmmJgiVyN9jTPJ2VBPquf6Kt/nAoo6DgHAoN57K15ZghiHaMvqjCye/uU4X5u3YSMgVBI1h3vKrQ==
 
-"@esbuild/sunos-x64@0.19.12":
+"@esbuild/sunos-x64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/sunos-x64/-/sunos-x64-0.19.12.tgz#0933eaab9af8b9b2c930236f62aae3fc593faf30"
+  resolved "https://registry.yarnpkg.com/@esbuild/sunos-x64/-/sunos-x64-0.20.2.tgz#7df23b61a497b8ac189def6e25a95673caedb03f"
-  integrity sha512-HKjJwRrW8uWtCQnQOz9qcU3mUZhTUQvi56Q8DPTLLB+DawoiQdjsYq+j+D3s9I8VFtDr+F9CjgXKKC4ss89IeA==
+  integrity sha512-2UyFtRC6cXLyejf/YEld4Hajo7UHILetzE1vsRcGL3earZEW77JxrFjH4Ez2qaTiEfMgAXxfAZCm1fvM/G/o8w==
 
-"@esbuild/win32-arm64@0.19.12":
+"@esbuild/win32-arm64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/win32-arm64/-/win32-arm64-0.19.12.tgz#773bdbaa1971b36db2f6560088639ccd1e6773ae"
+  resolved "https://registry.yarnpkg.com/@esbuild/win32-arm64/-/win32-arm64-0.20.2.tgz#f1ae5abf9ca052ae11c1bc806fb4c0f519bacf90"
-  integrity sha512-URgtR1dJnmGvX864pn1B2YUYNzjmXkuJOIqG2HdU62MVS4EHpU2946OZoTMnRUHklGtJdJZ33QfzdjGACXhn1A==
+  integrity sha512-GRibxoawM9ZCnDxnP3usoUDO9vUkpAxIIZ6GQI+IlVmr5kP3zUq+l17xELTHMWTWzjxa2guPNyrpq1GWmPvcGQ==
 
-"@esbuild/win32-ia32@0.19.12":
+"@esbuild/win32-ia32@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/win32-ia32/-/win32-ia32-0.19.12.tgz#000516cad06354cc84a73f0943a4aa690ef6fd67"
+  resolved "https://registry.yarnpkg.com/@esbuild/win32-ia32/-/win32-ia32-0.20.2.tgz#241fe62c34d8e8461cd708277813e1d0ba55ce23"
-  integrity sha512-+ZOE6pUkMOJfmxmBZElNOx72NKpIa/HFOMGzu8fqzQJ5kgf6aTGrcJaFsNiVMH4JKpMipyK+7k0n2UXN7a8YKQ==
+  integrity sha512-HfLOfn9YWmkSKRQqovpnITazdtquEW8/SoHW7pWpuEeguaZI4QnCRW6b+oZTztdBnZOS2hqJ6im/D5cPzBTTlQ==
 
-"@esbuild/win32-x64@0.19.12":
+"@esbuild/win32-x64@0.20.2":
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/@esbuild/win32-x64/-/win32-x64-0.19.12.tgz#c57c8afbb4054a3ab8317591a0b7320360b444ae"
+  resolved "https://registry.yarnpkg.com/@esbuild/win32-x64/-/win32-x64-0.20.2.tgz#9c907b21e30a52db959ba4f80bb01a0cc403d5cc"
-  integrity sha512-T1QyPSDCyMXaO3pzBkF96E8xMkiRYbUEZADd29SyPGabqxMViNoii+NcK7eWJAEoU6RZyEm5lVSIjTmcdoB9HA==
+  integrity sha512-N49X4lJX27+l9jbLKSqZ6bKNjzQvHaT8IIFUy+YIqmXQdjYCToGWwOItDrfby14c78aDd5NHQl29xingXfCdLQ==
 
-"@gltf-transform/core@^3.10.0":
+"@gltf-transform/core@^3.10.1":
-  version "3.10.0"
+  version "3.10.1"
-  resolved "https://registry.yarnpkg.com/@gltf-transform/core/-/core-3.10.0.tgz#854e7345f23971e4e7367a29183a2d1b62d45e46"
+  resolved "https://registry.yarnpkg.com/@gltf-transform/core/-/core-3.10.1.tgz#d99c060b499482ed2c3304466405bf4c10939831"
-  integrity sha512-NxVKhSWvH0j1tjZE8Yl461HUMyZLmYmqcbqHw0TOcQd5Q1SV7Y5w6W68XMt9/amRfMAiJLLNREE7kbr+Z0Ydbw==
+  integrity sha512-50OYemknGNxjBmiOM6iJp04JAu0bl9jvXJfN/gFt9QdJO02cPDcoXlTfSPJG6TVWDcfl0xPlsx1vybcbPVGFcQ==
   dependencies:
     property-graph "^1.3.1"
 
-"@gltf-transform/extensions@^3.10.0":
+"@gltf-transform/extensions@^3.10.1":
-  version "3.10.0"
+  version "3.10.1"
-  resolved "https://registry.yarnpkg.com/@gltf-transform/extensions/-/extensions-3.10.0.tgz#4ae11c3fe8e2a77e6e9dd04ebf0931c7b0cd3690"
+  resolved "https://registry.yarnpkg.com/@gltf-transform/extensions/-/extensions-3.10.1.tgz#71664389cae46fb12eb97dc71eb96d86a0d7801f"
-  integrity sha512-dz/cf2toBzP+w3ES2VgMiINCN6q86MVGu1lHkT0El4No77Bje9fnHVEPrKwaDCsXi5YXUiG/u6686vK6jePwDA==
+  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":
+"@gltf-transform/functions@^3.10.1":
-  version "3.10.0"
+  version "3.10.1"
-  resolved "https://registry.yarnpkg.com/@gltf-transform/functions/-/functions-3.10.0.tgz#bf0331c109ac948d19be7394d3afcfae84215cfd"
+  resolved "https://registry.yarnpkg.com/@gltf-transform/functions/-/functions-3.10.1.tgz#c40817740241c0ee770f4d1210ccc766e46d8ab2"
-  integrity sha512-FStbDaH7t2z74RyEeUQn3aBcybULbDkt72ZasC0s7DwQ2DFKKKOth4Zksi4g9+8URNM6vNa2JSfuO851dkJHEg==
+  integrity sha512-Zs6+1qvTD9w40R5qv70E4wJXXacNQ46ZxjKKW6dmfGIyjT8bsSJmV3Tdj+WJ8R6lWXXZ8e2p3ZvAUfPDEG73bQ==
   dependencies:
-    "@gltf-transform/core" "^3.10.0"
+    "@gltf-transform/core" "^3.10.1"
-    "@gltf-transform/extensions" "^3.10.0"
+    "@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":
+"@rollup/rollup-android-arm-eabi@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-android-arm-eabi/-/rollup-android-arm-eabi-4.12.0.tgz#38c3abd1955a3c21d492af6b1a1dca4bb1d894d6"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-android-arm-eabi/-/rollup-android-arm-eabi-4.13.0.tgz#b98786c1304b4ff8db3a873180b778649b5dff2b"
-  integrity sha512-+ac02NL/2TCKRrJu2wffk1kZ+RyqxVUlbjSagNgPm94frxtr+XDL12E5Ll1enWskLrtrZ2r8L3wED1orIibV/w==
+  integrity sha512-5ZYPOuaAqEH/W3gYsRkxQATBW3Ii1MfaT4EQstTnLKViLi2gLSQmlmtTpGucNP3sXEpOiI5tdGhjdE111ekyEg==
 
-"@rollup/rollup-android-arm64@4.12.0":
+"@rollup/rollup-android-arm64@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-android-arm64/-/rollup-android-arm64-4.12.0.tgz#3822e929f415627609e53b11cec9a4be806de0e2"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-android-arm64/-/rollup-android-arm64-4.13.0.tgz#8833679af11172b1bf1ab7cb3bad84df4caf0c9e"
-  integrity sha512-OBqcX2BMe6nvjQ0Nyp7cC90cnumt8PXmO7Dp3gfAju/6YwG0Tj74z1vKrfRz7qAv23nBcYM8BCbhrsWqO7PzQQ==
+  integrity sha512-BSbaCmn8ZadK3UAQdlauSvtaJjhlDEjS5hEVVIN3A4bbl3X+otyf/kOJV08bYiRxfejP3DXFzO2jz3G20107+Q==
 
-"@rollup/rollup-darwin-arm64@4.12.0":
+"@rollup/rollup-darwin-arm64@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-darwin-arm64/-/rollup-darwin-arm64-4.12.0.tgz#6c082de71f481f57df6cfa3701ab2a7afde96f69"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-darwin-arm64/-/rollup-darwin-arm64-4.13.0.tgz#ef02d73e0a95d406e0eb4fd61a53d5d17775659b"
-  integrity sha512-X64tZd8dRE/QTrBIEs63kaOBG0b5GVEd3ccoLtyf6IdXtHdh8h+I56C2yC3PtC9Ucnv0CpNFJLqKFVgCYe0lOQ==
+  integrity sha512-Ovf2evVaP6sW5Ut0GHyUSOqA6tVKfrTHddtmxGQc1CTQa1Cw3/KMCDEEICZBbyppcwnhMwcDce9ZRxdWRpVd6g==
 
-"@rollup/rollup-darwin-x64@4.12.0":
+"@rollup/rollup-darwin-x64@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-darwin-x64/-/rollup-darwin-x64-4.12.0.tgz#c34ca0d31f3c46a22c9afa0e944403eea0edcfd8"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-darwin-x64/-/rollup-darwin-x64-4.13.0.tgz#3ce5b9bcf92b3341a5c1c58a3e6bcce0ea9e7455"
-  integrity sha512-cc71KUZoVbUJmGP2cOuiZ9HSOP14AzBAThn3OU+9LcA1+IUqswJyR1cAJj3Mg55HbjZP6OLAIscbQsQLrpgTOg==
+  integrity sha512-U+Jcxm89UTK592vZ2J9st9ajRv/hrwHdnvyuJpa5A2ngGSVHypigidkQJP+YiGL6JODiUeMzkqQzbCG3At81Gg==
 
-"@rollup/rollup-linux-arm-gnueabihf@4.12.0":
+"@rollup/rollup-linux-arm-gnueabihf@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm-gnueabihf/-/rollup-linux-arm-gnueabihf-4.12.0.tgz#48e899c1e438629c072889b824a98787a7c2362d"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm-gnueabihf/-/rollup-linux-arm-gnueabihf-4.13.0.tgz#3d3d2c018bdd8e037c6bfedd52acfff1c97e4be4"
-  integrity sha512-a6w/Y3hyyO6GlpKL2xJ4IOh/7d+APaqLYdMf86xnczU3nurFTaVN9s9jOXQg97BE4nYm/7Ga51rjec5nfRdrvA==
+  integrity sha512-8wZidaUJUTIR5T4vRS22VkSMOVooG0F4N+JSwQXWSRiC6yfEsFMLTYRFHvby5mFFuExHa/yAp9juSphQQJAijQ==
 
-"@rollup/rollup-linux-arm64-gnu@4.12.0":
+"@rollup/rollup-linux-arm64-gnu@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm64-gnu/-/rollup-linux-arm64-gnu-4.12.0.tgz#788c2698a119dc229062d40da6ada8a090a73a68"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm64-gnu/-/rollup-linux-arm64-gnu-4.13.0.tgz#5fc8cc978ff396eaa136d7bfe05b5b9138064143"
-  integrity sha512-0fZBq27b+D7Ar5CQMofVN8sggOVhEtzFUwOwPppQt0k+VR+7UHMZZY4y+64WJ06XOhBTKXtQB/Sv0NwQMXyNAA==
+  integrity sha512-Iu0Kno1vrD7zHQDxOmvweqLkAzjxEVqNhUIXBsZ8hu8Oak7/5VTPrxOEZXYC1nmrBVJp0ZcL2E7lSuuOVaE3+w==
 
-"@rollup/rollup-linux-arm64-musl@4.12.0":
+"@rollup/rollup-linux-arm64-musl@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm64-musl/-/rollup-linux-arm64-musl-4.12.0.tgz#3882a4e3a564af9e55804beeb67076857b035ab7"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-arm64-musl/-/rollup-linux-arm64-musl-4.13.0.tgz#f2ae7d7bed416ffa26d6b948ac5772b520700eef"
-  integrity sha512-eTvzUS3hhhlgeAv6bfigekzWZjaEX9xP9HhxB0Dvrdbkk5w/b+1Sxct2ZuDxNJKzsRStSq1EaEkVSEe7A7ipgQ==
+  integrity sha512-C31QrW47llgVyrRjIwiOwsHFcaIwmkKi3PCroQY5aVq4H0A5v/vVVAtFsI1nfBngtoRpeREvZOkIhmRwUKkAdw==
 
-"@rollup/rollup-linux-riscv64-gnu@4.12.0":
+"@rollup/rollup-linux-riscv64-gnu@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-riscv64-gnu/-/rollup-linux-riscv64-gnu-4.12.0.tgz#0c6ad792e1195c12bfae634425a3d2aa0fe93ab7"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-riscv64-gnu/-/rollup-linux-riscv64-gnu-4.13.0.tgz#303d57a328ee9a50c85385936f31cf62306d30b6"
-  integrity sha512-ix+qAB9qmrCRiaO71VFfY8rkiAZJL8zQRXveS27HS+pKdjwUfEhqo2+YF2oI+H/22Xsiski+qqwIBxVewLK7sw==
+  integrity sha512-Oq90dtMHvthFOPMl7pt7KmxzX7E71AfyIhh+cPhLY9oko97Zf2C9tt/XJD4RgxhaGeAraAXDtqxvKE1y/j35lA==
 
-"@rollup/rollup-linux-x64-gnu@4.12.0":
+"@rollup/rollup-linux-x64-gnu@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-x64-gnu/-/rollup-linux-x64-gnu-4.12.0.tgz#9d62485ea0f18d8674033b57aa14fb758f6ec6e3"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-x64-gnu/-/rollup-linux-x64-gnu-4.13.0.tgz#f672f6508f090fc73f08ba40ff76c20b57424778"
-  integrity sha512-TenQhZVOtw/3qKOPa7d+QgkeM6xY0LtwzR8OplmyL5LrgTWIXpTQg2Q2ycBf8jm+SFW2Wt/DTn1gf7nFp3ssVA==
+  integrity sha512-yUD/8wMffnTKuiIsl6xU+4IA8UNhQ/f1sAnQebmE/lyQ8abjsVyDkyRkWop0kdMhKMprpNIhPmYlCxgHrPoXoA==
 
-"@rollup/rollup-linux-x64-musl@4.12.0":
+"@rollup/rollup-linux-x64-musl@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-x64-musl/-/rollup-linux-x64-musl-4.12.0.tgz#50e8167e28b33c977c1f813def2b2074d1435e05"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-linux-x64-musl/-/rollup-linux-x64-musl-4.13.0.tgz#d2f34b1b157f3e7f13925bca3288192a66755a89"
-  integrity sha512-LfFdRhNnW0zdMvdCb5FNuWlls2WbbSridJvxOvYWgSBOYZtgBfW9UGNJG//rwMqTX1xQE9BAodvMH9tAusKDUw==
+  integrity sha512-9RyNqoFNdF0vu/qqX63fKotBh43fJQeYC98hCaf89DYQpv+xu0D8QFSOS0biA7cGuqJFOc1bJ+m2rhhsKcw1hw==
 
-"@rollup/rollup-win32-arm64-msvc@4.12.0":
+"@rollup/rollup-win32-arm64-msvc@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-arm64-msvc/-/rollup-win32-arm64-msvc-4.12.0.tgz#68d233272a2004429124494121a42c4aebdc5b8e"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-arm64-msvc/-/rollup-win32-arm64-msvc-4.13.0.tgz#8ffecc980ae4d9899eb2f9c4ae471a8d58d2da6b"
-  integrity sha512-JPDxovheWNp6d7AHCgsUlkuCKvtu3RB55iNEkaQcf0ttsDU/JZF+iQnYcQJSk/7PtT4mjjVG8N1kpwnI9SLYaw==
+  integrity sha512-46ue8ymtm/5PUU6pCvjlic0z82qWkxv54GTJZgHrQUuZnVH+tvvSP0LsozIDsCBFO4VjJ13N68wqrKSeScUKdA==
 
-"@rollup/rollup-win32-ia32-msvc@4.12.0":
+"@rollup/rollup-win32-ia32-msvc@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-ia32-msvc/-/rollup-win32-ia32-msvc-4.12.0.tgz#366ca62221d1689e3b55a03f4ae12ae9ba595d40"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-ia32-msvc/-/rollup-win32-ia32-msvc-4.13.0.tgz#a7505884f415662e088365b9218b2b03a88fc6f2"
-  integrity sha512-fjtuvMWRGJn1oZacG8IPnzIV6GF2/XG+h71FKn76OYFqySXInJtseAqdprVTDTyqPxQOG9Exak5/E9Z3+EJ8ZA==
+  integrity sha512-P5/MqLdLSlqxbeuJ3YDeX37srC8mCflSyTrUsgbU1c/U9j6l2g2GiIdYaGD9QjdMQPMSgYm7hgg0551wHyIluw==
 
-"@rollup/rollup-win32-x64-msvc@4.12.0":
+"@rollup/rollup-win32-x64-msvc@4.13.0":
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.12.0.tgz#9ffdf9ed133a7464f4ae187eb9e1294413fab235"
+  resolved "https://registry.yarnpkg.com/@rollup/rollup-win32-x64-msvc/-/rollup-win32-x64-msvc-4.13.0.tgz#6abd79db7ff8d01a58865ba20a63cfd23d9e2a10"
-  integrity sha512-ZYmr5mS2wd4Dew/JjT0Fqi2NPB/ZhZ2VvPp7SmvPZb4Y1CG/LRcS6tcRo2cYU7zLK5A7cdbhWnnWmUjoI4qapg==
+  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":
+"@tsconfig/node20@^20.1.4":
-  version "20.1.2"
+  version "20.1.4"
-  resolved "https://registry.yarnpkg.com/@tsconfig/node20/-/node20-20.1.2.tgz#b93128c411d38e9507035255195bc8a6718541e3"
+  resolved "https://registry.yarnpkg.com/@tsconfig/node20/-/node20-20.1.4.tgz#3457d42eddf12d3bde3976186ab0cd22b85df928"
-  integrity sha512-madaWq2k+LYMEhmcp0fs+OGaLFk0OenpHa4gmI4VEmCKX4PJntQ6fnnGADVFrVkBj0wIdAlQnK/MrlYTHsa1gQ==
+  integrity sha512-sqgsT69YFeLWf5NtJ4Xq/xAF8p4ZQHlmGW74Nu2tD4+g5fAsposc4ZfaaPixVu4y01BEiDCWLRDCvDM5JOsRxg==
 
 "@tufjs/canonical-json@2.0.0":
   version "2.0.0"
@@ -805,10 +805,10 @@
   resolved "https://registry.yarnpkg.com/@types/ndarray/-/ndarray-1.0.14.tgz#96b28c09a3587a76de380243f87bb7a2d63b4b23"
   integrity sha512-oANmFZMnFQvb219SSBIhI1Ih/r4CvHDOzkWyJS/XRqkMrGH5/kaPSA1hQhdIBzouaE+5KpE/f5ylI9cujmckQg==
 
-"@types/node@^20.11.25":
+"@types/node@^20.12.2":
-  version "20.11.25"
+  version "20.12.2"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.11.25.tgz#0f50d62f274e54dd7a49f7704cc16bfbcccaf49f"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.12.2.tgz#9facdd11102f38b21b4ebedd9d7999663343d72e"
-  integrity sha512-TBHyJxk2b7HceLVGFcpAUjsa5zIdsPWlR6XHfyGzd0SFu+/NFgQgMAl96MSDZgQDvJAvV6BKsFOrt6zIL09JDw==
+  integrity sha512-zQ0NYO87hyN6Xrclcqp7f8ZbXNbRfoGWNcMvHTPQp9UUrwI0mI7XBz+cu7/W6/VClYo2g63B0cjull/srU7LgQ==
   dependencies:
     undici-types "~5.26.4"
 
@@ -851,26 +851,26 @@
   resolved "https://registry.yarnpkg.com/@vitejs/plugin-vue/-/plugin-vue-5.0.4.tgz#508d6a0f2440f86945835d903fcc0d95d1bb8a37"
   integrity sha512-WS3hevEszI6CEVEx28F8RjTX97k3KsrcY6kvTg7+Whm5y3oYvcqzVeGCU3hxSAn4uY2CLCkeokkGKpoctccilQ==
 
-"@volar/language-core@2.1.2", "@volar/language-core@~2.1.2":
+"@volar/language-core@2.1.5", "@volar/language-core@~2.1.3":
-  version "2.1.2"
+  version "2.1.5"
-  resolved "https://registry.yarnpkg.com/@volar/language-core/-/language-core-2.1.2.tgz#2053c0ee48a822d5418be2c192e51e580764b49f"
+  resolved "https://registry.yarnpkg.com/@volar/language-core/-/language-core-2.1.5.tgz#78803531562ca423a3b4fa1b3a90d33537aab928"
-  integrity sha512-5qsDp0Gf6fE09UWCeK7bkVn6NxMwC9OqFWQkMMkeej8h8XjyABPdRygC2RCrqDrfVdGijqlMQeXs6yRS+vfZYA==
+  integrity sha512-u1OHmVkCFsJqNdaM2GKuMhE67TxcEnOqJNF+VtYv2Ji8DnrUaF4FAFSNxY+MRGICl+873CsSJVKas9TQtW14LA==
   dependencies:
-    "@volar/source-map" "2.1.2"
+    "@volar/source-map" "2.1.5"
 
-"@volar/source-map@2.1.2":
+"@volar/source-map@2.1.5":
-  version "2.1.2"
+  version "2.1.5"
-  resolved "https://registry.yarnpkg.com/@volar/source-map/-/source-map-2.1.2.tgz#d270ff8ef5c814582f0efe08272c0fd6b9effb3b"
+  resolved "https://registry.yarnpkg.com/@volar/source-map/-/source-map-2.1.5.tgz#c073549368d399365f0024ed89aea93de0807328"
-  integrity sha512-yFJqsuLm1OaWrsz9E3yd3bJcYIlHqdZ8MbmIoZLrAzMYQDcoF26/INIhgziEXSdyHc8xd7rd/tJdSnUyh0gH4Q==
+  integrity sha512-GIkAM6fHgDcTXcdH4i10fAiAZzO0HLIer8/pt3oZ9A0n7n4R5d1b2F8Xxzh/pgmgNoL+SrHX3MFxs35CKgfmtA==
   dependencies:
     muggle-string "^0.4.0"
 
-"@volar/typescript@~2.1.2":
+"@volar/typescript@~2.1.3":
-  version "2.1.2"
+  version "2.1.5"
-  resolved "https://registry.yarnpkg.com/@volar/typescript/-/typescript-2.1.2.tgz#61f838cf4410e328a7ba638fadc41bb814772508"
+  resolved "https://registry.yarnpkg.com/@volar/typescript/-/typescript-2.1.5.tgz#756a8626af1c5ce3c9d8df3e79d49bfdd0adf39e"
-  integrity sha512-lhTancZqamvaLvoz0u/uth8dpudENNt2LFZOWCw9JZiX14xRFhdhfzmphiCRb7am9E6qAJSbdS/gMt1utXAoHQ==
+  integrity sha512-zo9a3NrNMSkufIvHuExDGTfYv+zO7C5p2wg8fyP7vcqF/Qo0ztjb0ZfOgq/A85EO/MBc1Kj2Iu7PaOBtP++NMw==
   dependencies:
-    "@volar/language-core" "2.1.2"
+    "@volar/language-core" "2.1.5"
     path-browserify "^1.0.1"
 
 "@vue/babel-helper-vue-transform-on@1.2.1":
@@ -948,12 +948,12 @@
     "@vue/compiler-dom" "3.4.21"
     "@vue/shared" "3.4.21"
 
-"@vue/language-core@2.0.6":
+"@vue/language-core@2.0.7":
-  version "2.0.6"
+  version "2.0.7"
-  resolved "https://registry.yarnpkg.com/@vue/language-core/-/language-core-2.0.6.tgz#876f90622a3f801dce5cedcd6eae429d732152e2"
+  resolved "https://registry.yarnpkg.com/@vue/language-core/-/language-core-2.0.7.tgz#af12f752a93c4d2498626fca33f5d1ddc8c5ceb9"
-  integrity sha512-UzqU12tzf9XLqRO3TiWPwRNpP4fyUzE6MAfOQWQNZ4jy6a30ARRUpmODDKq6O8C4goMc2AlPqTmjOHPjHkilSg==
+  integrity sha512-Vh1yZX3XmYjn9yYLkjU8DN6L0ceBtEcapqiyclHne8guG84IaTzqtvizZB1Yfxm3h6m7EIvjerLO5fvOZO6IIQ==
   dependencies:
-    "@volar/language-core" "~2.1.2"
+    "@volar/language-core" "~2.1.3"
     "@vue/compiler-dom" "^3.4.0"
     "@vue/shared" "^3.4.0"
     computeds "^0.0.1"
@@ -1481,34 +1481,34 @@ error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-esbuild@^0.19.3:
+esbuild@^0.20.1:
-  version "0.19.12"
+  version "0.20.2"
-  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.19.12.tgz#dc82ee5dc79e82f5a5c3b4323a2a641827db3e04"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.20.2.tgz#9d6b2386561766ee6b5a55196c6d766d28c87ea1"
-  integrity sha512-aARqgq8roFBj054KvQr5f1sFu0D65G+miZRCuJyJ0G13Zwx7vRar5Zhn2tkQNzIXcBrNVsv/8stehpj+GAjgbg==
+  integrity sha512-WdOOppmUNU+IbZ0PaDiTst80zjnrOkyJNHoKupIcVyU8Lvla3Ugx94VzkQ32Ijqd7UhHJy75gNWDMUekcrSJ6g==
   optionalDependencies:
-    "@esbuild/aix-ppc64" "0.19.12"
+    "@esbuild/aix-ppc64" "0.20.2"
-    "@esbuild/android-arm" "0.19.12"
+    "@esbuild/android-arm" "0.20.2"
-    "@esbuild/android-arm64" "0.19.12"
+    "@esbuild/android-arm64" "0.20.2"
-    "@esbuild/android-x64" "0.19.12"
+    "@esbuild/android-x64" "0.20.2"
-    "@esbuild/darwin-arm64" "0.19.12"
+    "@esbuild/darwin-arm64" "0.20.2"
-    "@esbuild/darwin-x64" "0.19.12"
+    "@esbuild/darwin-x64" "0.20.2"
-    "@esbuild/freebsd-arm64" "0.19.12"
+    "@esbuild/freebsd-arm64" "0.20.2"
-    "@esbuild/freebsd-x64" "0.19.12"
+    "@esbuild/freebsd-x64" "0.20.2"
-    "@esbuild/linux-arm" "0.19.12"
+    "@esbuild/linux-arm" "0.20.2"
-    "@esbuild/linux-arm64" "0.19.12"
+    "@esbuild/linux-arm64" "0.20.2"
-    "@esbuild/linux-ia32" "0.19.12"
+    "@esbuild/linux-ia32" "0.20.2"
-    "@esbuild/linux-loong64" "0.19.12"
+    "@esbuild/linux-loong64" "0.20.2"
-    "@esbuild/linux-mips64el" "0.19.12"
+    "@esbuild/linux-mips64el" "0.20.2"
-    "@esbuild/linux-ppc64" "0.19.12"
+    "@esbuild/linux-ppc64" "0.20.2"
-    "@esbuild/linux-riscv64" "0.19.12"
+    "@esbuild/linux-riscv64" "0.20.2"
-    "@esbuild/linux-s390x" "0.19.12"
+    "@esbuild/linux-s390x" "0.20.2"
-    "@esbuild/linux-x64" "0.19.12"
+    "@esbuild/linux-x64" "0.20.2"
-    "@esbuild/netbsd-x64" "0.19.12"
+    "@esbuild/netbsd-x64" "0.20.2"
-    "@esbuild/openbsd-x64" "0.19.12"
+    "@esbuild/openbsd-x64" "0.20.2"
-    "@esbuild/sunos-x64" "0.19.12"
+    "@esbuild/sunos-x64" "0.20.2"
-    "@esbuild/win32-arm64" "0.19.12"
+    "@esbuild/win32-arm64" "0.20.2"
-    "@esbuild/win32-ia32" "0.19.12"
+    "@esbuild/win32-ia32" "0.20.2"
-    "@esbuild/win32-x64" "0.19.12"
+    "@esbuild/win32-x64" "0.20.2"
 
 escalade@^3.1.1:
   version "3.1.2"
@@ -2410,14 +2410,14 @@ postcss-selector-parser@^6.0.10:
     cssesc "^3.0.0"
     util-deprecate "^1.0.2"
 
-postcss@^8.4.35:
+postcss@^8.4.35, postcss@^8.4.38:
-  version "8.4.35"
+  version "8.4.38"
-  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.35.tgz#60997775689ce09011edf083a549cea44aabe2f7"
+  resolved "https://registry.yarnpkg.com/postcss/-/postcss-8.4.38.tgz#b387d533baf2054288e337066d81c6bee9db9e0e"
-  integrity sha512-u5U8qYpBCpN13BsiEB0CbR1Hhh4Gc0zLFuedrHJKMctHCHAGrMdG0PRM/KErzAL3CU6/eckEtmHNB3x6e3c0vA==
+  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 +2551,26 @@ 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:
+rollup@^4.13.0:
-  version "4.12.0"
+  version "4.13.0"
-  resolved "https://registry.yarnpkg.com/rollup/-/rollup-4.12.0.tgz#0b6d1e5f3d46bbcf244deec41a7421dc54cc45b5"
+  resolved "https://registry.yarnpkg.com/rollup/-/rollup-4.13.0.tgz#dd2ae144b4cdc2ea25420477f68d4937a721237a"
-  integrity sha512-wz66wn4t1OHIJw3+XU7mJJQV/2NAfw5OAk6G6Hoo3zcvz/XOfQ52Vgi+AN4Uxoxi0KBBwk2g8zPrTDA4btSB/Q==
+  integrity sha512-3YegKemjoQnYKmsBlOHfMLVPPA5xLkQ8MHLLSw/fBrFaVkEayL51DilPpNNLq1exr98F2B1TzrV0FUlN3gWRPg==
   dependencies:
     "@types/estree" "1.0.5"
   optionalDependencies:
-    "@rollup/rollup-android-arm-eabi" "4.12.0"
+    "@rollup/rollup-android-arm-eabi" "4.13.0"
-    "@rollup/rollup-android-arm64" "4.12.0"
+    "@rollup/rollup-android-arm64" "4.13.0"
-    "@rollup/rollup-darwin-arm64" "4.12.0"
+    "@rollup/rollup-darwin-arm64" "4.13.0"
-    "@rollup/rollup-darwin-x64" "4.12.0"
+    "@rollup/rollup-darwin-x64" "4.13.0"
-    "@rollup/rollup-linux-arm-gnueabihf" "4.12.0"
+    "@rollup/rollup-linux-arm-gnueabihf" "4.13.0"
-    "@rollup/rollup-linux-arm64-gnu" "4.12.0"
+    "@rollup/rollup-linux-arm64-gnu" "4.13.0"
-    "@rollup/rollup-linux-arm64-musl" "4.12.0"
+    "@rollup/rollup-linux-arm64-musl" "4.13.0"
-    "@rollup/rollup-linux-riscv64-gnu" "4.12.0"
+    "@rollup/rollup-linux-riscv64-gnu" "4.13.0"
-    "@rollup/rollup-linux-x64-gnu" "4.12.0"
+    "@rollup/rollup-linux-x64-gnu" "4.13.0"
-    "@rollup/rollup-linux-x64-musl" "4.12.0"
+    "@rollup/rollup-linux-x64-musl" "4.13.0"
-    "@rollup/rollup-win32-arm64-msvc" "4.12.0"
+    "@rollup/rollup-win32-arm64-msvc" "4.13.0"
-    "@rollup/rollup-win32-ia32-msvc" "4.12.0"
+    "@rollup/rollup-win32-ia32-msvc" "4.13.0"
-    "@rollup/rollup-win32-x64-msvc" "4.12.0"
+    "@rollup/rollup-win32-x64-msvc" "4.13.0"
     fsevents "~2.3.2"
 
 safe-buffer@^5.0.1, safe-buffer@~5.2.0:
@@ -2701,6 +2701,11 @@ 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 +2883,21 @@ tar@^6.1.11, tar@^6.1.2:
     mkdirp "^1.0.3"
     yallist "^4.0.0"
 
-terser@^5.29.1:
+terser@^5.30.0:
-  version "5.29.1"
+  version "5.30.0"
-  resolved "https://registry.yarnpkg.com/terser/-/terser-5.29.1.tgz#44e58045b70c09792ba14bfb7b4e14ca8755b9fa"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-5.30.0.tgz#64cb2af71e16ea3d32153f84d990f9be0cdc22bf"
-  integrity sha512-lZQ/fyaIGxsbGxApKmoPTODIzELy3++mXhS5hOqaAWZjQtpq/hFHAc+rm29NND1rYRxRWKcjuARNwULNXa5RtQ==
+  integrity sha512-Y/SblUl5kEyEFzhMAQdsxVHh+utAxd4IuRNJzKywY/4uzSogh3G219jqbDDxYu4MXO9CzY3tSEqmZvW6AoEDJw==
   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"
@@ -2935,10 +2945,10 @@ tunnel-agent@^0.6.0:
   dependencies:
     safe-buffer "^5.0.1"
 
-typescript@~5.4.2:
+typescript@~5.4.3:
-  version "5.4.2"
+  version "5.4.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.4.2.tgz#0ae9cebcfae970718474fe0da2c090cad6577372"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.4.3.tgz#5c6fedd4c87bee01cd7a528a30145521f8e0feff"
-  integrity sha512-+2/g0Fds1ERlP6JsakQQDXjZdZMM+rqpamFZJEKh4kwTIn3iDkgKtby0CeNd5ATNZ4Ry1ax15TMx0W2V+miizQ==
+  integrity sha512-KrPd3PKaCLr78MalgiwJnA25Nm8HAmdwN3mYUYZgG/wizIo9EainNVQI9/yDavtVFRN2h3k8uf3GLHuhDMgEHg==
 
 undici-types@~5.26.4:
   version "5.26.5"
@@ -2992,14 +3002,14 @@ validate-npm-package-name@^5.0.0:
   dependencies:
     builtins "^5.0.0"
 
-vite@^5.1.5:
+vite@^5.2.7:
-  version "5.1.5"
+  version "5.2.7"
-  resolved "https://registry.yarnpkg.com/vite/-/vite-5.1.5.tgz#bdbc2b15e8000d9cc5172f059201178f9c9de5fb"
+  resolved "https://registry.yarnpkg.com/vite/-/vite-5.2.7.tgz#e1b8a985eb54fcb9467d7f7f009d87485016df6e"
-  integrity sha512-BdN1xh0Of/oQafhU+FvopafUp6WaYenLU/NFoL5WyJL++GxkNfieKzBhM24H3HVsPQrlAqB7iJYTHabzaRed5Q==
+  integrity sha512-k14PWOKLI6pMaSzAuGtT+Cf0YmIx12z9YGon39onaJNy8DLBfBJrzg9FQEmkAM5lpHBZs9wksWAsyF/HkpEwJA==
   dependencies:
-    esbuild "^0.19.3"
+    esbuild "^0.20.1"
-    postcss "^8.4.35"
+    postcss "^8.4.38"
-    rollup "^4.2.0"
+    rollup "^4.13.0"
   optionalDependencies:
     fsevents "~2.3.3"
 
@@ -3011,13 +3021,13 @@ vue-template-compiler@^2.7.14:
     de-indent "^1.0.2"
     he "^1.2.0"
 
-vue-tsc@^2.0.6:
+vue-tsc@^2.0.7:
-  version "2.0.6"
+  version "2.0.7"
-  resolved "https://registry.yarnpkg.com/vue-tsc/-/vue-tsc-2.0.6.tgz#29cb195ffea63d66ec70b64eb4aadc6cd162bb12"
+  resolved "https://registry.yarnpkg.com/vue-tsc/-/vue-tsc-2.0.7.tgz#3177a2fe720bfa7355d3717929ee8c8d132bc5d0"
-  integrity sha512-kK50W4XqQL34vHRkxlRWLicrT6+F9xfgCgJ4KSmCHcytKzc1u3c94XXgI+CjmhOSxyw0krpExF7Obo7y4+0dVQ==
+  integrity sha512-LYa0nInkfcDBB7y8jQ9FQ4riJTRNTdh98zK/hzt4gEpBZQmf30dPhP+odzCa+cedGz6B/guvJEd0BavZaRptjg==
   dependencies:
-    "@volar/typescript" "~2.1.2"
+    "@volar/typescript" "~2.1.3"
-    "@vue/language-core" "2.0.6"
+    "@vue/language-core" "2.0.7"
     semver "^7.5.4"
 
 vue@^3.4.21:
@@ -3031,10 +3041,10 @@ vue@^3.4.21:
     "@vue/server-renderer" "3.4.21"
     "@vue/shared" "3.4.21"
 
-vuetify@^3.5.8:
+vuetify@^3.5.13:
-  version "3.5.8"
+  version "3.5.13"
-  resolved "https://registry.yarnpkg.com/vuetify/-/vuetify-3.5.8.tgz#bc8f08dfd3314640e7b5d43b50138a26d650cbbf"
+  resolved "https://registry.yarnpkg.com/vuetify/-/vuetify-3.5.13.tgz#24a45d19ce5dcf71b2653f0bcf3ea91edf1f406c"
-  integrity sha512-8nGS+lKejZkev55HFwIfsRt+9fOqbeDQNmXxfmLKAlnUT8FtynVwbjAwHMtX/OQAQ3ZwRaR1ptqQQmx3OgxzbQ==
+  integrity sha512-3ZyIoHgB2GR87ojIpqNwkkRXlUNTEKh83fjUuQ1hOKdTXzEuZXBgtfUt9kp4WOVnYILGdZKWTJ6gv8nXOa/tZA==
 
 walk-up-path@^3.0.1:
   version "3.0.1"