Start working on python package

.gitignore

@@ -8,4 +8,8 @@
 /.idea/
 
 # TODO: Figure out if we want to keep a big default skybox image in the repo
-/img/st_peters_square_night_8k.jpg
+/assets/st_peters_square_night_8k.jpg
+/assets/fox.glb
+
+*.iml
+venv/

README.md

@@ -0,0 +1 @@
+# Yet Another CAD Viewer

package.json

@@ -14,6 +14,8 @@
     "three-orientation-gizmo": "https://github.com/jrj2211/three-orientation-gizmo"
   },
   "devDependencies": {
+    "@parcel/optimizer-data-url": "2.11.0",
+    "@parcel/transformer-inline-string": "2.11.0",
     "@types/three": "^0.160.0",
     "buffer": "^5.5.0||^6.0.0",
     "parcel": "^2.11.0"

pyproject.toml

@@ -0,0 +1,22 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "yacv_server"
+version = "0.0.1"
+authors = [
+    { name = "Yeicor" },
+]
+description = "Yet Another CAD Viewer (server)"
+readme = "README.md"
+requires-python = ">=3.8"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
+
+[project.urls]
+Homepage = "https://github.com/yeicor-3d/yet-another-cad-viewer"
+Issues = "https://github.com/yeicor-3d/yet-another-cad-viewer/issues"

src/app.ts

@@ -1,10 +1,8 @@
 import {ModelViewerElement} from '@google/model-viewer';
-import {settings} from "./settings";
-import {Renderer} from "@google/model-viewer/lib/three-components/Renderer";
 import {$scene} from "@google/model-viewer/lib/model-viewer-base";
 import {OrientationGizmo} from "./orientation";
-import {$controls} from "@google/model-viewer/lib/features/controls";
 import {ModelScene} from "@google/model-viewer/lib/three-components/ModelScene";
+import {settings} from "./settings";
 
 export class App {
     element: ModelViewerElement
@@ -13,10 +11,12 @@ export class App {
         this.element = new ModelViewerElement();
         this.element.setAttribute('alt', 'The CAD Viewer is not supported on this browser.');
         this.element.setAttribute('camera-controls', '');
+        this.element.setAttribute('camera-orbit', '30deg 75deg auto');
         this.element.setAttribute('max-camera-orbit', 'Infinity 180deg auto');
         this.element.setAttribute('min-camera-orbit', '-Infinity 0deg auto');
         this.element.setAttribute('interaction-prompt', 'none'); // Quits selected views from gizmo
         // this.element.setAttribute('auto-rotate', ''); // Messes with the gizmo (rotates model instead of camera)
+        if (settings.autoplay) this.element.setAttribute('autoplay', '');
         if (settings.arModes) {
             this.element.setAttribute('ar', '');
             this.element.setAttribute('ar-modes', settings.arModes);
@@ -34,16 +34,13 @@ export class App {
         let scene: ModelScene = this.element[$scene];
         let gizmo = new OrientationGizmo(scene);
         gizmo.install();
+
         function updateGizmo() {
             gizmo.update();
             requestAnimationFrame(updateGizmo);
         }
+
         updateGizmo();
-        // document.body.appendChild(this.stats.dom)
-        // this.stats.dom.style.left = '';
-        // this.stats.dom.style.right = '0px';
-        // this.stats.dom.style.top = '120px';
-        // this.stats.showPanel(1); // 0: fps, 1: ms, 2: mb, 3+: custom
     }
 
     replaceModel(url: string) {

src/index.ts

@@ -1,7 +1,7 @@
 import {App} from "./app";
-
+import {settings} from "./settings";
 const app = new App()
 
 app.install();
 
-app.replaceModel(`https://raw.githubusercontent.com/KhronosGroup/glTF-Sample-Models/master/2.0/Duck/glTF-Binary/Duck.glb`)
+app.replaceModel(settings.preloadModel)

src/settings.ts

@@ -1,7 +1,12 @@
 // @ts-ignore
-import skyboxUrl from './../img/st_peters_square_night_8k.jpg';
+import skyboxUrl from '../assets/st_peters_square_night_8k.jpg';
+// @ts-ignore
+import logo from "url:../assets/fox.glb";
 
 export const settings = {
+    // ModelViewer settings
+    preloadModel: logo,
+    autoplay: true,
     arModes: 'webxr scene-viewer quick-look',
     shadowIntensity: 1,
     background: skyboxUrl,

yacv_server/logo/logo.py

@@ -0,0 +1,15 @@
+from build123d import *
+
+from tessellate import tessellate
+
+
+def logo() -> Compound:
+    """Builds the CAD part of the logo"""
+    with BuildPart() as logo_obj:
+        Box(1, 2, 3)
+    return logo_obj.part
+
+
+if __name__ == "__main__":
+    obj = logo()
+    tessellate(obj.wrapped, lambda *args: print(args))

yacv_server/requirements.txt

@@ -0,0 +1,3 @@
+build123d==0.3.0
+aiohttp==3.9.3
+partcad==0.3.84

yacv_server/tessellate.py

@@ -0,0 +1,151 @@
+import concurrent
+import copyreg
+from concurrent.futures import ProcessPoolExecutor, Executor
+from dataclasses import dataclass
+from enum import Enum
+from typing import Optional, Tuple, Callable
+
+import OCP
+from OCP.BRepAdaptor import BRepAdaptor_Curve
+from OCP.GCPnts import GCPnts_TangentialDeflection
+from OCP.TopoDS import TopoDS_Face, TopoDS_Edge, TopoDS_Shape
+from build123d import Face, Vector, Shape
+from partcad.wrappers import cq_serialize
+
+
+class UVMode(Enum):
+    """UV mode for tesselation"""
+
+    TRIPLANAR = 0
+    """Triplanar UV mapping"""
+    FACE = 1
+    """Use UV coordinates from each face"""
+
+
+@dataclass
+class TessellationUpdate:
+    """Tessellation update"""
+
+    # Progress
+    root: TopoDS_Shape
+    """The root shape that is being tessellated"""
+    progress: float
+    """Progress in percent"""
+
+    # Current shape
+    shape: TopoDS_Shape
+    """Shape that was tessellated"""
+    vertices: list[Vector]
+    """List of vertices"""
+    indices: Optional[list[Tuple[int, int, int]]]
+    """List of indices (only for faces)"""
+
+
+progress_callback_t = Callable[[TessellationUpdate], None]
+
+
+def _inflate_vec(*values: float):
+    pnt = OCP.gp.gp_Vec(values[0], values[1], values[2])
+    return pnt
+
+
+def _reduce_vec(pnt: OCP.gp.gp_Vec):
+    return _inflate_vec, (pnt.X(), pnt.Y(), pnt.Z())
+
+
+def tessellate(
+        ocp_shape: TopoDS_Shape,
+        progress_callback: progress_callback_t = None,
+        tolerance: float = 0.1,
+        angular_tolerance: float = 0.1,
+        uv: Optional[UVMode] = None,
+        executor: Executor = ProcessPoolExecutor(),  # Set to ThreadPoolExecutor if pickling fails...
+):
+    """Tessellate a whole shape into a list of triangle vertices and a list of triangle indices.
+
+    It uses multiprocessing to speed up the process, and publishes progress updates to the callback.
+    """
+    shape = Shape(ocp_shape)
+    _register_pickle_if_needed()
+    with executor:
+        futures = []
+
+        # Submit tessellation tasks
+        for face in shape.faces():
+            futures.append(executor.submit(_tessellate_element, face.wrapped, tolerance, angular_tolerance, uv))
+        for edge in shape.edges():
+            futures.append(executor.submit(_tessellate_element, edge.wrapped, tolerance, angular_tolerance, uv))
+
+        # Collect results as they come in
+        for i, future in enumerate(concurrent.futures.as_completed(futures)):
+            tessellation, shape = future.result()
+            is_face = isinstance(shape, TopoDS_Face)
+            update = TessellationUpdate(
+                root=ocp_shape,
+                progress=(i + 1) / len(futures),
+                shape=shape,
+                vertices=tessellation[0] if is_face else tessellation,
+                indices=tessellation[1] if is_face else None,
+            )
+            progress_callback(update)
+
+
+_pickle_registered = False
+
+
+def _register_pickle_if_needed():
+    global _pickle_registered
+    if _pickle_registered:
+        return
+    cq_serialize.register()
+    copyreg.pickle(OCP.gp.gp_Vec, _reduce_vec)
+
+
+# Define the function that will tessellate each element in parallel
+def _tessellate_element(element: TopoDS_Shape, tolerance, angular_tolerance, uv):
+    if isinstance(element, TopoDS_Face):
+        return _tessellate_face(element, tolerance, angular_tolerance, uv), element
+    elif isinstance(element, TopoDS_Edge):
+        return _tessellate_edge(element, angular_tolerance, angular_tolerance), element
+
+
+TriMesh = Tuple[list[Vector], list[Tuple[int, int, int]]]
+
+
+def _tessellate_face(
+        ocp_face: TopoDS_Face,
+        tolerance: float = 0.1,
+        angular_tolerance: float = 0.1,
+        uv: Optional[UVMode] = None,
+) -> TriMesh:
+    """Tessellate a face into a list of triangle vertices and a list of triangle indices"""
+    face = Face(ocp_face)
+    tri_mesh = face.tessellate(tolerance, angular_tolerance)
+
+    # TODO: UV mapping
+
+    return tri_mesh
+
+
+def _tessellate_edge(
+        ocp_edge: TopoDS_Edge,
+        angular_deflection: float = 0.1,
+        curvature_deflection: float = 0.1,
+) -> list[Vector]:
+    """Tessellate a wire or edge into a list of ordered vertices"""
+    curve = BRepAdaptor_Curve(ocp_edge)
+    discretizer = GCPnts_TangentialDeflection(curve, angular_deflection, curvature_deflection)
+    assert discretizer.NbPoints() > 1, "Edge is too small??"
+
+    # TODO: get transformation??
+
+    # add vertices
+    vertices: list[Vector] = [
+        Vector(v.X(), v.Y(), v.Z())
+        for v in (
+            discretizer.Value(i)  # .Transformed(transformation)
+            for i in range(1, discretizer.NbPoints() + 1)
+        )
+    ]
+
+    return vertices

yarn.lock

@@ -317,6 +317,16 @@
     lightningcss "^1.22.1"
     nullthrows "^1.1.1"
 
+"@parcel/optimizer-data-url@2.11.0":
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/@parcel/optimizer-data-url/-/optimizer-data-url-2.11.0.tgz#db0681ff38b356b29ddc40d059126bb4641d3ed8"
+  integrity sha512-k/BCJMNhqN+3vykp1jVR8AvCrbV8sYBC3gYh/qNzeS+mcmWaF4VIeoJj/nwIu7qYgb6LIC1Ib0ph6i16YmcRFg==
+  dependencies:
+    "@parcel/plugin" "2.11.0"
+    "@parcel/utils" "2.11.0"
+    isbinaryfile "^4.0.2"
+    mime "^2.4.4"
+
 "@parcel/optimizer-htmlnano@2.11.0":
   version "2.11.0"
   resolved "https://registry.yarnpkg.com/@parcel/optimizer-htmlnano/-/optimizer-htmlnano-2.11.0.tgz#2d62e5a0f15a58feeee67cdd23bf54da528d0207"
@@ -590,6 +600,13 @@
     "@parcel/workers" "2.11.0"
     nullthrows "^1.1.1"
 
+"@parcel/transformer-inline-string@2.11.0":
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/@parcel/transformer-inline-string/-/transformer-inline-string-2.11.0.tgz#36ef8add36ac45b48df6db379def2f920ade6a09"
+  integrity sha512-yLLjVqS7/P/ySOOjwdl2mElNHmCtJK81+7mnoA2oLEsf4kTKlW3JnIvX5BqJj6Dy6Ek0V1M48E86T9U3fwzWzg==
+  dependencies:
+    "@parcel/plugin" "2.11.0"
+
 "@parcel/transformer-js@2.11.0":
   version "2.11.0"
   resolved "https://registry.yarnpkg.com/@parcel/transformer-js/-/transformer-js-2.11.0.tgz#1067d929a5c7f577b3c40068d5f6cb6428398771"
@@ -1290,6 +1307,11 @@ is-promise@^2.1.0:
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.2.2.tgz#39ab959ccbf9a774cf079f7b40c7a26f763135f1"
   integrity sha512-+lP4/6lKUBfQjZ2pdxThZvLUAafmZb8OAxFb8XXtiQmS35INgr85hdOGoEs124ez1FCnZJt6jau/T+alh58QFQ==
 
+isbinaryfile@^4.0.2:
+  version "4.0.10"
+  resolved "https://registry.yarnpkg.com/isbinaryfile/-/isbinaryfile-4.0.10.tgz#0c5b5e30c2557a2f06febd37b7322946aaee42b3"
+  integrity sha512-iHrqe5shvBUcFbmZq9zOQHBoeOhZJu6RQGrDpBgenUm/Am+F3JM2MgQj+rK3Z601fzrL5gLZWtAPH2OBaSVcyw==
+
 js-tokens@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
@@ -1454,6 +1476,11 @@ micromatch@^4.0.5:
     braces "^3.0.2"
     picomatch "^2.3.1"
 
+mime@^2.4.4:
+  version "2.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-2.6.0.tgz#a2a682a95cd4d0cb1d6257e28f83da7e35800367"
+  integrity sha512-USPkMeET31rOMiarsBNIHZKLGgvKc/LrjofAnBlOttf5ajRvqiRA8QsenbcooctK6d6Ts6aqZXBA+XbkKthiQg==
+
 msgpackr-extract@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/msgpackr-extract/-/msgpackr-extract-3.0.2.tgz#e05ec1bb4453ddf020551bcd5daaf0092a2c279d"