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Merge pull request #476 from MatthiasJ1/chamfer_performance

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Improve chamfer performance on m1
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Roger Maitland 2024-01-12 13:01:46 -05:00 • committed by GitHub
commit 047d9cc53f
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1 changed files with 21 additions and 16 deletions
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35
src/build123d/topology.py
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@ -2104,6 +2104,7 @@ class Shape(NodeMixin):
def _entities_from(
self, child_type: Shapes, parent_type: Shapes
) -> Dict[Shape, list[Shape]]:
"""This function is very slow on M1 macs and is currently unused"""
res = TopTools_IndexedDataMapOfShapeListOfShape()
TopExp.MapShapesAndAncestors_s(
@ -5596,28 +5597,33 @@ class Face(Shape):
Face: face with a chamfered corner(s)
"""
reference_edge = edge
del edge
chamfer_builder = BRepFilletAPI_MakeFillet2d(self.wrapped)
edge_map = self._entities_from(Vertex.__name__, Edge.__name__)
for vertex in vertices:
edges = edge_map[vertex]
if len(edges) < 2:
raise ValueError("Cannot chamfer at this location")
vertex_edge_map = TopTools_IndexedDataMapOfShapeListOfShape()
TopExp.MapShapesAndAncestors_s(self.wrapped, ta.TopAbs_VERTEX, ta.TopAbs_EDGE, vertex_edge_map)
if edge:
if edge not in edges:
for v in vertices:
edges = vertex_edge_map.FindFromKey(v.wrapped)
# Index or iterator access to OCP.TopTools.TopTools_ListOfShape is slow on M1 macs
# Using First() and Last() to omit
edges = [edges.First(), edges.Last()]
# Need to wrap in b3d objects for comparison to work
# ref.wrapped != edge.wrapped but ref == edge
edges = [Shape.cast(e) for e in edges]
if reference_edge:
if reference_edge not in edges:
raise ValueError("One or more vertices are not part of edge")
edge1 = edge
edge2 = [x for x in edges if x != edge][0]
edge1 = reference_edge
edge2 = [x for x in edges if x != reference_edge][0]
else:
edge1, edge2 = edges
if edge in edges:
pass
chamfer_builder.AddChamfer(
TopoDS.Edge_s(edge1.wrapped),
TopoDS.Edge_s(edge2.wrapped),
@ -5626,7 +5632,6 @@ class Face(Shape):
)
chamfer_builder.Build()
return self.__class__(chamfer_builder.Shape()).fix()
def is_coplanar(self, plane: Plane) -> bool: