Remove FreeCAD dependency

I have added cqparts support for my jupyter extension https://github.com/bernhard-42/cadquery-jupyter-extension. Since the extension runs only with the pythonOCC version of cadquery, I had to patch geometry.py

 class CoordSystem(cadquery.Plane):
     """
     Defines the location, and rotation of an orthogonal 3 dimensional coordinate
@@ -108,14 +103,14 @@ class CoordSystem(cadquery.Plane):
             i & = cos(\beta) cos(\gamma)
         """
         # Create reference points at origin
-        offset = FreeCAD.Vector(0, 0, 0)
-        x_vertex = FreeCAD.Vector(1, 0, 0)  # vertex along +X-axis
-        z_vertex = FreeCAD.Vector(0, 0, 1)  # vertex along +Z-axis
+        offset = cadquery.Vector((0, 0, 0))
+        x_vertex = cadquery.Vector((1, 0, 0))  # vertex along +X-axis
+        z_vertex = cadquery.Vector((0, 0, 1))  # vertex along +Z-axis

         # Transform reference points
-        offset = matrix.multiply(offset)
-        x_vertex = matrix.multiply(x_vertex)
-        z_vertex = matrix.multiply(z_vertex)
+        offset = offset.transform(matrix)
+        x_vertex = x_vertex.transform(matrix)
+        z_vertex = z_vertex.transform(matrix)

         # Get axis vectors (relative to offset vertex)
         x_axis = x_vertex - offset

I cannot test against the FreeCAD version since on macos there are issues around python versions between FreeCAD and system python (one of the reasons for me to leave FreeCAD)

Thought it could maybe help …

[bernhard-42]

Looking forward to the next release and will switch over to feature/freecad-occ for the time being

[jhselvik]

Thank you @bernhard-42, I will give that a try and let you know how it works!