本例子有参考 https://www.cnblogs.com/opencascade/p/MakeFaceWithHoles.html
效果图:
from OCC.Core.gp import gp_Circ, gp_Pln, gp_XOY, gp_Pnt
from OCC.Core.BRepBuilderAPI import (BRepBuilderAPI_MakeEdge,
BRepBuilderAPI_MakeWire,
BRepBuilderAPI_MakeFace)
from OCC.Display.SimpleGui import init_display
display, start_display, add_menu, add_function_to_menu = init_display()
def holes_in_face():
aPlane = gp_Pln()
print(type(gp_Pln()))
print(type(gp_XOY()))
aCircle1 = gp_Circ(gp_XOY(), 1.0)
aCircle2 = gp_Circ(gp_XOY(), 1.0)
aCircle3 = gp_Circ(gp_XOY(), 1.0)
aCircle1.SetLocation(gp_Pnt(3.0, 3.0, 0.0))
aCircle2.SetLocation(gp_Pnt(7.0, 3.0, 0.0))
aCircle3.SetLocation(gp_Pnt(3.0, 7.0, 0.0))
anEdgeMaker1 = BRepBuilderAPI_MakeEdge(aCircle1)
anEdgeMaker2 = BRepBuilderAPI_MakeEdge(aCircle2)
anEdgeMaker3 = BRepBuilderAPI_MakeEdge(aCircle3)
aWireMaker1 = BRepBuilderAPI_MakeWire(anEdgeMaker1.Edge())
aWireMaker2 = BRepBuilderAPI_MakeWire(anEdgeMaker2.Edge())
aWireMaker3 = BRepBuilderAPI_MakeWire(anEdgeMaker3.Edge())
aFaceMaker = BRepBuilderAPI_MakeFace(aPlane, 0.0, 10.0, 0.0, 10.0)
if aWireMaker1.IsDone():
aWire1 = aWireMaker1.Wire()
aWire1.Reverse() # Makes this a hole in outer profile
aFaceMaker.Add(aWire1)
if aWireMaker2.IsDone():
aWire2 = aWireMaker2.Wire()
aWire2.Reverse() # Makes this a hole in outer profile
aFaceMaker.Add(aWire2)
if aWireMaker3.IsDone():
aWire3 = aWireMaker3.Wire()
aWire3.Reverse() # Makes this a hole in outer profile
aFaceMaker.Add(aWire3)
if not aFaceMaker.IsDone():
raise AssertionError("shape not Done.")
return aFaceMaker.Shape()
if __name__ == "__main__":
face = holes_in_face()
display.DisplayShape(face, update=True)
start_display()
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