Automatically update version to 0.9.0

Bumps [@gltf-transform/functions](https://github.com/donmccurdy/glTF-Transform) from 4.0.8 to 4.0.10.
- [Changelog](https://github.com/donmccurdy/glTF-Transform/blob/main/CHANGELOG.md)
- [Commits](https://github.com/donmccurdy/glTF-Transform/compare/v4.0.8...v4.0.10)

---
updated-dependencies:
- dependency-name: "@gltf-transform/functions"
  dependency-type: direct:production
  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>

example/README.md

@@ -3,13 +3,12 @@
 ## Installation
 
 1. Download the contents of this folder.
-2. Assuming you have a recent version of Python installed, install the required packages:
+2. Assuming you have a recent version of Python 3 installed, install the required packages:
 
 ```bash
 python -m venv venv
+. venv/bin/activate  # Execute this line every time you change the terminal
 pip install -r requirements.txt
-# Do this every time you change the terminal:
-. venv/bin/activate
 ```
 
 ## Usage

example/object.py

@@ -3,6 +3,7 @@ import logging
 import os
 
 from build123d import *  # Also works with cadquery objects!
+from build123d import Compound
 
 logging.basicConfig(level=logging.DEBUG)
 
@@ -15,9 +16,14 @@ with BuildPart() as example:
     Box(10, 10, 5)
     Cylinder(4, 5, mode=Mode.SUBTRACT)
 
-# Show it in the frontend with hot-reloading
+# Custom colors (optional)
-show(example)
+example.color = (0.1, 0.3, 0.1, 1)  # RGBA
+to_highlight = example.edges().group_by(Axis.Z)[-1]
+example_hl = Compound(to_highlight).translate((0, 0, 1e-3))  # To avoid z-fighting
+example_hl.color = (1, 1, .0, 1)
 
+# Show it in the frontend with hot-reloading
+show(example, example_hl)
 
 # %%
 

frontend/misc/gltf.ts

@@ -1,5 +1,5 @@
 import {Buffer, Document, Scene, type Transform, WebIO} from "@gltf-transform/core";
-import {unpartition} from "@gltf-transform/functions";
+import {unpartition, mergeDocuments} from "@gltf-transform/functions";
 
 let io = new WebIO();
 export let extrasNameKey = "__yacv_name";
@@ -56,7 +56,8 @@ export async function mergePartial(url: string, name: string, document: Document
     await newDoc.transform(setNames(name));
 
     // Merge the new document into the current one
-    return document.merge(newDoc);
+    mergeDocuments(document, newDoc);
+    return document;
 }
 
 export async function mergeFinalize(document: Document): Promise<Document> {

frontend/tools/OrientationGizmo.vue

@@ -17,9 +17,13 @@ function createGizmo(expectedParent: HTMLElement, scene: ModelScene): HTMLElemen
   let gizmo = new OrientationGizmoRaw.default(scene.camera, {
     size: expectedParent.clientWidth,
     bubbleSizePrimary: expectedParent.clientWidth / 12,
-    bubbleSizeSeconday: expectedParent.clientWidth / 14,
+    bubbleSizeSeconday: expectedParent.clientWidth / 12,
-    fontSize: (expectedParent.clientWidth / 10) + "px"
+    fontSize: (expectedParent.clientWidth / 10) + "px",
   });
+  // Make sure all bubbles are labeled
+  for (let bubble of gizmo.bubbles) {
+    bubble.label = bubble.axis.toUpperCase();
+  }
   // HACK: Swap axes to fake the CAD orientation
   for (let swap of [["y", "-z"], ["z", "-y"], ["z", "-z"]]) {
     let indexA = gizmo.bubbles.findIndex((bubble: any) => bubble.axis == swap[0])

frontend/tools/Tools.vue

@@ -142,7 +142,7 @@ window.addEventListener('keydown', (event) => {
   <v-divider/>
   <h5>Selection ({{ selectionFaceCount() }}F {{ selectionEdgeCount() }}E {{ selectionVertexCount() }}V)</h5>
   <selection-component ref="selectionComp" v-model="selection" :viewer="props.viewer as any"
-                       @findModel="(name) => emit('findModel', name)"/>
+                       @findModel="(name: string) => emit('findModel', name)"/>
   <v-divider/>
   <v-spacer></v-spacer>
   <h5>Extras</h5>
@@ -199,4 +199,4 @@ window.addEventListener('keydown', (event) => {
 h5 {
   font-size: 14px;
 }
-</style>
+</style>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "yet-another-cad-viewer",
-  "version": "0.8.9",
+  "version": "0.9.0",
   "description": "",
   "license": "MIT",
   "private": true,
@@ -15,33 +15,33 @@
     "update-licenses": "generate-license-file --input package.json --output assets/licenses.txt --overwrite"
   },
   "dependencies": {
-    "@gltf-transform/core": "^3.10.1",
+    "@gltf-transform/core": "^4.0.4",
-    "@gltf-transform/extensions": "^3.10.1",
+    "@gltf-transform/extensions": "^4.0.10",
-    "@gltf-transform/functions": "^3.10.1",
+    "@gltf-transform/functions": "^4.0.10",
-    "@google/model-viewer": "^3.4.0",
+    "@google/model-viewer": "^3.5.0",
     "@jamescoyle/vue-icon": "^0.1.2",
     "@mdi/js": "^7.4.47",
     "@mdi/svg": "^7.4.47",
-    "three": "^0.160.1",
+    "three": "^0.163.0",
-    "three-mesh-bvh": "^0.7.3",
+    "three-mesh-bvh": "^0.8.2",
     "three-orientation-gizmo": "https://github.com/jrj2211/three-orientation-gizmo",
-    "vue": "^3.4.21",
+    "vue": "^3.5.11",
-    "vuetify": "^3.5.13"
+    "vuetify": "^3.7.2"
   },
   "devDependencies": {
     "@tsconfig/node20": "^20.1.4",
-    "@types/node": "^20.12.2",
+    "@types/node": "^22.7.4",
-    "@types/three": "^0.160.0",
+    "@types/three": "^0.163.0",
-    "@vitejs/plugin-vue": "^5.0.3",
+    "@vitejs/plugin-vue": "^5.1.4",
-    "@vitejs/plugin-vue-jsx": "^3.1.0",
+    "@vitejs/plugin-vue-jsx": "^4.0.1",
     "@vue/tsconfig": "^0.5.1",
     "buffer": "^5.5.0||^6.0.0",
     "commander": "^12.0.0",
-    "generate-license-file": "^3.0.1",
+    "generate-license-file": "^3.5.1",
-    "npm-run-all2": "^6.1.1",
+    "npm-run-all2": "^6.2.3",
-    "terser": "^5.30.0",
+    "terser": "^5.34.1",
-    "typescript": "~5.4.3",
+    "typescript": "~5.6.2",
-    "vite": "^5.2.7",
+    "vite": "^5.4.8",
-    "vue-tsc": "^2.0.7"
+    "vue-tsc": "^2.1.6"
   }
 }

poetry.lock

@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.8.2 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.8.3 and should not be changed by hand.
 
 [[package]]
 name = "anytree"
@@ -34,21 +34,21 @@ test = ["astroid (>=1,<2)", "astroid (>=2,<4)", "pytest"]
 
 [[package]]
 name = "build123d"
-version = "0.5.0"
+version = "0.7.0"
 description = "A python CAD programming library"
 optional = false
 python-versions = ">=3.9"
 files = [
-    {file = "build123d-0.5.0-py3-none-any.whl", hash = "sha256:d0a4e82cdb0e53ef21fca8d2c84124351d7c7070077b5efa173d789002c8194c"},
+    {file = "build123d-0.7.0-py3-none-any.whl", hash = "sha256:0771b6f8adf326a4e21a5224cac730045217021c2040e9884fc5dd5028bec3c8"},
+    {file = "build123d-0.7.0.tar.gz", hash = "sha256:530fe4807b0c6fcb682f872973d961c9ad9dbc4ebaf33e3cc1088d3117de54e7"},
 ]
 
 [package.dependencies]
 anytree = ">=2.8.0,<3"
 cadquery-ocp = ">=7.7.0"
-ezdxf = ">=1.0.0,<2"
+ezdxf = ">=1.1.0,<2"
 ipython = ">=8.0.0,<9"
 numpy = ">=1.24.1,<2"
-numpy-stl = ">=3.0.0,<4"
 ocpsvg = "*"
 py-lib3mf = ">=2.3.1"
 svgpathtools = ">=1.5.1,<2"
@@ -426,21 +426,6 @@ files = [
     {file = "numpy-1.26.4.tar.gz", hash = "sha256:2a02aba9ed12e4ac4eb3ea9421c420301a0c6460d9830d74a9df87efa4912010"},
 ]
 
-[[package]]
-name = "numpy-stl"
-version = "3.1.1"
-description = "Library to make reading, writing and modifying both binary and ascii STL files easy."
-optional = false
-python-versions = ">3.6.0"
-files = [
-    {file = "numpy-stl-3.1.1.tar.gz", hash = "sha256:f78eea62c80938bf53ea914fa5b6c92f448f0eab5609e0e5a737dde039404334"},
-    {file = "numpy_stl-3.1.1-py3-none-any.whl", hash = "sha256:b0b7f4455c29d26d3dc0eed894f5b17c64e4019b056d0060be48f93680f6e6d3"},
-]
-
-[package.dependencies]
-numpy = "*"
-python-utils = ">=3.4.5"
-
 [[package]]
 name = "ocpsvg"
 version = "0.2.0"
@@ -502,83 +487,95 @@ ptyprocess = ">=0.5"
 
 [[package]]
 name = "pillow"
-version = "10.2.0"
+version = "10.4.0"
 description = "Python Imaging Library (Fork)"
 optional = false
 python-versions = ">=3.8"
 files = [
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 ]
 
 [package.extras]
-docs = ["furo", "olefile", "sphinx (>=2.4)", "sphinx-copybutton", "sphinx-inline-tabs", "sphinx-removed-in", "sphinxext-opengraph"]
+docs = ["furo", "olefile", "sphinx (>=7.3)", "sphinx-copybutton", "sphinx-inline-tabs", "sphinxext-opengraph"]
 fpx = ["olefile"]
 mic = ["olefile"]
 tests = ["check-manifest", "coverage", "defusedxml", "markdown2", "olefile", "packaging", "pyroma", "pytest", "pytest-cov", "pytest-timeout"]
@@ -677,25 +674,6 @@ files = [
 [package.extras]
 diagrams = ["jinja2", "railroad-diagrams"]
 
-[[package]]
-name = "python-utils"
-version = "3.8.2"
-description = "Python Utils is a module with some convenient utilities not included with the standard Python install"
-optional = false
-python-versions = ">3.8.0"
-files = [
-    {file = "python-utils-3.8.2.tar.gz", hash = "sha256:c5d161e4ca58ce3f8c540f035e018850b261a41e7cb98f6ccf8e1deb7174a1f1"},
-    {file = "python_utils-3.8.2-py2.py3-none-any.whl", hash = "sha256:ad0ccdbd6f856d015cace07f74828b9840b5c4072d9e868a7f6a14fd195555a8"},
-]
-
-[package.dependencies]
-typing-extensions = ">3.10.0.2"
-
-[package.extras]
-docs = ["mock", "python-utils", "sphinx"]
-loguru = ["loguru"]
-tests = ["flake8", "loguru", "pytest", "pytest-asyncio", "pytest-cov", "pytest-mypy", "sphinx", "types-setuptools"]
-
 [[package]]
 name = "scipy"
 version = "1.12.0"
@@ -951,4 +929,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "612c2f4fcc3ff9e37bc9e604bf092452138843ec4dc529dadc210887f0e728fd"
+content-hash = "c7ab4daa707db1d54f8af490ab8f85a5d80052049aead04b08c867739829418d"

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "yacv-server"
-version = "0.8.9"
+version = "0.9.0"
 description = "Yet Another CAD Viewer (server)"
 authors = ["Yeicor <4929005+Yeicor@users.noreply.github.com>"]
 license = "MIT"
@@ -14,7 +14,7 @@ include = [
 python = "^3.9"
 
 # CAD
-build123d = "^0.5.0"
+build123d = ">=0.5,<0.8"
 
 # Misc
 pygltflib = "^1.16.2"

tsconfig.json

@@ -8,12 +8,11 @@
     "frontend/**/__tests__/*"
   ],
   "compilerOptions": {
-    "composite": true,
     "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.app.tsbuildinfo",
-
+    "declaration": false,
     "baseUrl": ".",
     "paths": {
       "@/*": ["./src/*"]
     }
   }
-}
+}

yacv_server/cad.py

@@ -10,12 +10,29 @@ 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 build123d import Compound, Shape, Color
 
 from yacv_server.gltf import GLTFMgr
 
 CADCoreLike = Union[TopoDS_Shape, TopLoc_Location]  # Faces, Edges, Vertices and Locations for now
 CADLike = Union[CADCoreLike, any]  # build123d and cadquery types
+ColorTuple = Tuple[float, float, float, float]
+
+
+def get_color(obj: CADLike) -> Optional[ColorTuple]:
+    """Get color from a CAD Object"""
+    if 'color' in dir(obj):
+        if isinstance(obj.color, tuple):
+            c = None
+            if len(obj.color) == 3:
+                c = obj.color + (1,)
+            elif len(obj.color) == 4:
+                c = obj.color
+            # noinspection PyTypeChecker
+            return [min(max(float(x), 0), 1) for x in c]
+        if isinstance(obj.color, Color):
+            return obj.color.to_tuple()
+    return None
 
 
 def get_shape(obj: CADLike, error: bool = True) -> Optional[CADCoreLike]:
@@ -164,7 +181,7 @@ def image_to_gltf(source: str | bytes, center: any, width: Optional[float] = Non
     return b''.join(mgr.build().save_to_bytes()), name
 
 
-def _hashcode(obj: Union[bytes, CADCoreLike], **extras) -> str:
+def _hashcode(obj: Union[bytes, CADCoreLike], color: Optional[ColorTuple], **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
@@ -172,6 +189,8 @@ def _hashcode(obj: Union[bytes, CADCoreLike], **extras) -> str:
     for k, v in extras.items():
         hasher.update(str(k).encode())
         hasher.update(str(v).encode())
+    if color:
+        hasher.update(str(color).encode())
     if isinstance(obj, bytes):
         hasher.update(obj)
     elif isinstance(obj, TopLoc_Location):

yacv_server/gltf.py

@@ -8,6 +8,12 @@ _checkerboard_image_bytes = base64.decodebytes(
     b'iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAIAAAD91JpzAAAAF0lEQVQI12N49OjR////Gf'
     b'/////48WMATwULS8tcyj8AAAAASUVORK5CYII=')
 
+def get_version() -> str:
+    try:
+        return importlib.metadata.version("yacv_server")
+    except importlib.metadata.PackageNotFoundError:
+        return "unknown"
+
 
 class GLTFMgr:
     """A utility class to build our GLTF2 objects easily and incrementally"""
@@ -32,7 +38,7 @@ class GLTFMgr:
 
     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')}"),
+            asset=Asset(generator=f"yacv_server@{get_version()}"),
             scene=0,
             scenes=[Scene(nodes=[0])],
             nodes=[Node(mesh=0)],  # TODO: Server-side detection of shallow copies --> nodes
@@ -71,9 +77,9 @@ class GLTFMgr:
         return [p for p in self.gltf.meshes[0].primitives if p.mode == POINTS][0]
 
     def add_face(self, vertices_raw: List[Vector], indices_raw: List[Tuple[int, int, int]],
-                 tex_coord_raw: List[Tuple[float, float]],
+                 tex_coord_raw: List[Tuple[float, float]], color: Optional[Tuple[float, float, float, float]] = None):
-                 color: Tuple[float, float, float, float] = (1.0, 0.75, 0.0, 1.0)):
         """Add a face to the GLTF mesh"""
+        if color is None: color = (1.0, 0.75, 0.0, 1.0)
         # 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"
@@ -85,8 +91,9 @@ class GLTFMgr:
         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)):
+                 color: Optional[Tuple[float, float, float, float]] = None):
         """Add an edge to the GLTF mesh"""
+        if color is None: color = (0.1, 0.1, 1.0, 1.0)
         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))])
@@ -94,9 +101,9 @@ class GLTFMgr:
         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],
+    def add_vertex(self, vertex: Tuple[float, float, float], color: Optional[Tuple[float, float, float, float]] = None):
-                   color: Tuple[float, float, float, float] = (0.1, 0.1, 0.1, 1.0)):
         """Add a vertex to the GLTF mesh"""
+        if color is None: color = (0.1, 0.1, 0.1, 1.0)
         base_index = len(self.vertex_positions) // 3
         self.vertex_indices.append(base_index)
         self.vertex_positions.extend(vertex)

yacv_server/logo.py

@@ -16,18 +16,25 @@ def build_logo(text: bool = True) -> Dict[str, Union[Part, Location, str]]:
             text_at_plane = Plane.YZ
             text_at_plane.origin = faces().group_by(Axis.X)[-1].face().center()
             with BuildSketch(text_at_plane.location):
-                Text('Yet Another\nCAD Viewer', 7, font_path='/usr/share/fonts/TTF/OpenSans-Regular.ttf')
+                Text('Yet Another\nCAD Viewer', 6, font_path='/usr/share/fonts/TTF/Hack-Regular.ttf')
             extrude(amount=1)
+    logo_obj.color = (0.7, 0.4, 0.1, 1) # Custom color for faces
 
+    # Highlight text edges with a custom color
+    to_highlight = logo_obj.edges().group_by(Axis.X)[-1]
+    logo_obj_hl = Compound(to_highlight).translate((1e-3, 0, 0))  # To avoid z-fighting
+    logo_obj_hl.color = (0, 0.3, 0.3, 1)
+
+    # Add a logo image to the CAD part
     logo_img_location = logo_obj.faces().group_by(Axis.X)[0].face().center_location
     logo_img_location *= Location((0, 0, 4e-2), (0, 0, 90))  # Avoid overlapping and adjust placement
-
     logo_img_path = os.path.join(ASSETS_DIR, 'img.jpg')
     img_glb_bytes, img_name = image_to_gltf(logo_img_path, logo_img_location, height=18)
 
+    # Add an animated fox to the CAD part
     fox_glb_bytes = open(os.path.join(ASSETS_DIR, 'fox.glb'), 'rb').read()
 
-    return {'fox': fox_glb_bytes, 'logo': logo_obj, 'location': logo_img_location, img_name: img_glb_bytes}
+    return {'fox': fox_glb_bytes, 'logo': logo_obj, 'logo_hl': logo_obj_hl, 'location': logo_img_location, img_name: img_glb_bytes}
 
 
 if __name__ == "__main__":

yacv_server/tessellate.py

@@ -1,4 +1,4 @@
-from typing import List, Dict, Tuple
+from typing import List, Dict, Tuple, Optional
 
 from OCP.BRep import BRep_Tool
 from OCP.BRepAdaptor import BRepAdaptor_Curve
@@ -8,7 +8,7 @@ from OCP.TopoDS import TopoDS_Face, TopoDS_Edge, TopoDS_Shape, TopoDS_Vertex
 from build123d import Shape, Vertex, Face, Location
 from pygltflib import GLTF2
 
-from yacv_server.cad import CADCoreLike
+from yacv_server.cad import CADCoreLike, ColorTuple
 from yacv_server.gltf import GLTFMgr
 from yacv_server.mylogger import logger
 
@@ -20,6 +20,7 @@ def tessellate(
         faces: bool = True,
         edges: bool = True,
         vertices: bool = True,
+        obj_color: Optional[ColorTuple] = None,
 ) -> GLTF2:
     """Tessellate a whole shape into a list of triangle vertices and a list of triangle indices."""
     mgr = GLTFMgr()
@@ -34,21 +35,25 @@ def tessellate(
         edge_to_faces: Dict[str, List[TopoDS_Face]] = {}
         vertex_to_faces: Dict[str, List[TopoDS_Face]] = {}
         if faces:
-            for face in shape.faces():
+            shape_faces = shape.faces()
-                _tessellate_face(mgr, face.wrapped, tolerance, angular_tolerance)
+            for face in shape_faces:
+                _tessellate_face(mgr, face.wrapped, tolerance, angular_tolerance, obj_color)
                 if edges:
                     for edge in face.edges():
                         edge_to_faces[edge.wrapped] = edge_to_faces.get(edge.wrapped, []) + [face.wrapped]
                 if vertices:
                     for vertex in face.vertices():
                         vertex_to_faces[vertex.wrapped] = vertex_to_faces.get(vertex.wrapped, []) + [face.wrapped]
+            if len(shape_faces) > 0: obj_color = None  # Don't color edges/vertices if faces are colored
         if edges:
-            for edge in shape.edges():
+            shape_edges = shape.edges()
+            for edge in shape_edges:
                 _tessellate_edge(mgr, edge.wrapped, edge_to_faces.get(edge.wrapped, []), angular_tolerance,
-                                 angular_tolerance)
+                                 angular_tolerance, obj_color)
+            if len(shape_edges) > 0: obj_color = None  # Don't color vertices if edges are colored
         if vertices:
             for vertex in shape.vertices():
-                _tessellate_vertex(mgr, vertex.wrapped, vertex_to_faces.get(vertex.wrapped, []))
+                _tessellate_vertex(mgr, vertex.wrapped, vertex_to_faces.get(vertex.wrapped, []), obj_color)
 
     return mgr.build()
 
@@ -57,7 +62,8 @@ def _tessellate_face(
         mgr: GLTFMgr,
         ocp_face: TopoDS_Face,
         tolerance: float = 1e-3,
-        angular_tolerance: float = 0.1
+        angular_tolerance: float = 0.1,
+        color: Optional[ColorTuple] = None,
 ):
     face = Shape(ocp_face)
     # face.mesh(tolerance, angular_tolerance)
@@ -75,7 +81,7 @@ def _tessellate_face(
 
     vertices = tri_mesh[0]
     indices = tri_mesh[1]
-    mgr.add_face(vertices, indices, uv)
+    mgr.add_face(vertices, indices, uv, color)
 
 
 def _push_point(v: Tuple[float, float, float], faces: List[TopoDS_Face]) -> Tuple[float, float, float]:
@@ -100,6 +106,7 @@ def _tessellate_edge(
         faces: List[TopoDS_Face],
         angular_deflection: float = 0.1,
         curvature_deflection: float = 0.1,
+        color: Optional[ColorTuple] = None,
 ):
     # Use a curve discretizer to get the vertices
     curve = BRepAdaptor_Curve(ocp_edge)
@@ -117,11 +124,12 @@ def _tessellate_edge(
 
     # 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)
+    mgr.add_edge(vertices, color)
 
 
-def _tessellate_vertex(mgr: GLTFMgr, ocp_vertex: TopoDS_Vertex, faces: List[TopoDS_Face]):
+def _tessellate_vertex(mgr: GLTFMgr, ocp_vertex: TopoDS_Vertex, faces: List[TopoDS_Face],
+                          color: Optional[ColorTuple] = None):
     c = Vertex(ocp_vertex).center()
-    mgr.add_vertex(_push_point((c.X, c.Y, c.Z), faces))
+    mgr.add_vertex(_push_point((c.X, c.Y, c.Z), faces), color)
 
 

yacv_server/yacv.py

@@ -8,7 +8,6 @@ import threading
 import time
 from dataclasses import dataclass
 from http.server import ThreadingHTTPServer
-from importlib.metadata import version
 from threading import Thread
 from typing import Optional, Dict, Union, Callable, List, Tuple
 
@@ -18,13 +17,14 @@ from OCP.TopoDS import TopoDS_Shape
 from build123d import Shape, Axis, Location, Vector
 from dataclasses_json import dataclass_json
 
+from yacv_server.cad import _hashcode, ColorTuple, get_color
 from yacv_server.cad import get_shape, grab_all_cad, CADCoreLike, CADLike
+from yacv_server.gltf import get_version
 from yacv_server.myhttp import HTTPHandler
 from yacv_server.mylogger import logger
 from yacv_server.pubsub import BufferedPubSub
 from yacv_server.rwlock import RWLock
 from yacv_server.tessellate import tessellate
-from yacv_server.cad import _hashcode
 
 
 @dataclass_json
@@ -44,16 +44,20 @@ YACVSupported = Union[bytes, CADCoreLike]
 
 class UpdatesApiFullData(UpdatesApiData):
     obj: YACVSupported
-    """The OCCT object, if any (not serialized)"""
+    """The OCCT object (not serialized)"""
+    color: Optional[ColorTuple]
+    """The color of the object, if any (not serialized)"""
     kwargs: Optional[Dict[str, any]]
     """The show_object options, if any (not serialized)"""
 
     def __init__(self, obj: YACVSupported, name: str, _hash: str, is_remove: Optional[bool] = False,
+                 color: Optional[ColorTuple] = None,
                  kwargs: Optional[Dict[str, any]] = None):
         self.name = name
         self.hash = _hash
         self.is_remove = is_remove
         self.obj = obj
+        self.color = color
         self.kwargs = kwargs
 
     def to_json(self) -> str:
@@ -98,7 +102,7 @@ class YACV:
         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'))
+        logger.info('Using yacv-server v%s', get_version())
 
     def start(self):
         """Starts the web server in the background"""
@@ -185,10 +189,11 @@ class YACV:
 
         # Publish the show event
         for obj, name in zip(objs, names):
+            color = get_color(obj)
             if not isinstance(obj, bytes):
                 obj = _preprocess_cad(obj, **kwargs)
-            _hash = _hashcode(obj, **kwargs)
+            _hash = _hashcode(obj, color, **kwargs)
-            event = UpdatesApiFullData(name=name, _hash=_hash, obj=obj, kwargs=kwargs or {})
+            event = UpdatesApiFullData(name=name, _hash=_hash, obj=obj, color=color, kwargs=kwargs or {})
             self.show_events.publish(event)
 
         logger.info('show %s took %.3f seconds', names, time.time() - start)
@@ -277,7 +282,8 @@ class YACV:
                                       angular_tolerance=event.kwargs.get('angular_tolerance', 0.1),
                                       faces=event.kwargs.get('faces', True),
                                       edges=event.kwargs.get('edges', True),
-                                      vertices=event.kwargs.get('vertices', True))
+                                      vertices=event.kwargs.get('vertices', True),
+                                      obj_color=event.color)
                     glb_list_of_bytes = gltf.save_to_bytes()
                     glb_bytes = b''.join(glb_list_of_bytes)
                     publish_to.publish(glb_bytes)