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Hi, I'm trying to select a Polyhedron and copy some of its faces, but I can't find the right method to do it. Could someone point me in the right direction?
Hi,
there is no dedicated function for your use-case, but try this
def get_face_polygons(polyhedron: AllplanGeo.Polyhedron3D) -> list[AllplanGeo.Polygon3D]:
"""Extracts the face polygons from a polyhedron.
Args:
polyhedron (AllplanGeo.Polyhedron3D): The polyhedron from which to extract the faces.
Returns:
list[AllplanGeo.Polygon3D]: A list of polygons representing the faces of the polyhedron.
"""
face_polygons: list[AllplanGeo.Polygon3D] = []
for idx in range(polyhedron.GetFacesCount()):
face = polyhedron.GetFace(idx)
face_polygon = AllplanGeo.Polygon3D()
for edge in face.GetEdges():
_, start, end = polyhedron.GetEdgeVertices(edge)
face_polygon += start
face_polygon += end
face_polygons.append(face_polygon)
return face_polygonsIt worked on my side.
Cheers,
Bart
Hi.
Can you tell more about the workflow? So the user selects a polyhedron, not a face. What criteria do you want to use to get the faces? And what should be the output? A Polygon3D?
Cheers,
Bart
I would like to select a solid (Polyhedron 3D) and "extract" all the faces (and then filter them based on riles that I can define). the problem is that I found methods that give me the vertices or the edges of the face, but not the actual face. I didn't find something like GetFace3D....
Hi,
there is no dedicated function for your use-case, but try this
def get_face_polygons(polyhedron: AllplanGeo.Polyhedron3D) -> list[AllplanGeo.Polygon3D]:
"""Extracts the face polygons from a polyhedron.
Args:
polyhedron (AllplanGeo.Polyhedron3D): The polyhedron from which to extract the faces.
Returns:
list[AllplanGeo.Polygon3D]: A list of polygons representing the faces of the polyhedron.
"""
face_polygons: list[AllplanGeo.Polygon3D] = []
for idx in range(polyhedron.GetFacesCount()):
face = polyhedron.GetFace(idx)
face_polygon = AllplanGeo.Polygon3D()
for edge in face.GetEdges():
_, start, end = polyhedron.GetEdgeVertices(edge)
face_polygon += start
face_polygon += end
face_polygons.append(face_polygon)
return face_polygonsIt worked on my side.
Cheers,
Bart