better mock Mesh

Geometry/clash.py

@@ -1,7 +1,12 @@
 from concurrent.futures import ProcessPoolExecutor, as_completed
 from typing import List, Tuple, Any, Optional
 
-import pymesh
+try:
+    import pymesh
+except ImportError:
+    from Geometry.mocks import mypymesh
+
+    pymesh = mypymesh
 
 from speckle_automate import AutomationContext
 
@@ -41,7 +46,7 @@ def detect_clashes_old(
                         continue
 
                     intersection = pymesh.boolean(
-                        ref_pymesh, latest_pymesh, operation="intersection"
+                        latest_pymesh, operation="intersection"
                     )
 
                     if (
@@ -77,9 +82,7 @@ def check_for_clash(
             if not ref_pymesh or not latest_pymesh:
                 continue
 
-            intersection = pymesh.boolean(
-                ref_pymesh, latest_pymesh, operation="intersection"
-            )
+            intersection = pymesh.boolean(latest_pymesh, operation="intersection")
             if intersection and intersection.volume > 0:
                 severity = intersection.volume / min(
                     ref_pymesh.volume, latest_pymesh.volume

Geometry/mesh.py

@@ -1,19 +1,15 @@
-from typing import Union, Type, TYPE_CHECKING
+from typing import Union, Type
 
+try:
+    import pymesh
+except ImportError:
+    from Geometry.mocks import mypymesh
 
-import pymesh
-
+    pymesh = mypymesh
 
 import trimesh
 
-
-class MockPyMesh:
-    def __init__(self, vertices, faces):
-        self.vertices = vertices or []
-        self.faces = faces or []
-
-    def boolean(self, other, operation):
-        return MockPyMesh([], [])
+from Geometry.helpers import triangulate_face
 
 
 def trimesh_to_pymesh(mesh: trimesh.Trimesh) -> pymesh.Mesh:

Geometry/mocks.py

@@ -0,0 +1,13 @@
+class mypymesh:
+    class Mesh:
+        def __init__(self, vertices, faces):
+            self.vertices = vertices
+            self.faces = faces
+
+        @property
+        def volume(self):
+            return 0
+
+    @staticmethod
+    def boolean(_other, _operation):
+        return mypymesh.Mesh([], [])

pyproject.toml

@@ -9,7 +9,6 @@ readme = "README.md"
 python = "^3.10"
 specklepy = "2.17.11"
 trimesh = "^4.0.4"
-pymesh = {git = "https://github.com/PyMesh/PyMesh.git"}
 
 [tool.poetry.group.dev.dependencies]
 black = "^23.3.0"
@@ -23,11 +22,11 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.ruff]
 select = [
-  "E",   # pycodestyle
-  "F",   # pyflakes
-  "UP",  # pyupgrade
-  "D",   # pydocstyle
-  "I",   # isort
+    "E", # pycodestyle
+    "F", # pyflakes
+    "UP", # pyupgrade
+    "D", # pydocstyle
+    "I", # isort
 ]
 
 [tool.ruff.pydocstyle]