def buildFaceBotUp():
"""Following procedure in Roman Lygen's blog
"""
origin = gp_Pnt(0, 0, 0)
wDir = gp_Dir(0, 0, 1)
uDir = gp_Dir(1, 0, 0)
vDir = gp_Dir(0, 1, 0)
xyzAx3 = gp_Ax3(origin, wDir, uDir)
gpPlane = gp_Pln(xyzAx3) # type OCC.gp.gp_Pln
# gpPlane = gp_XOY() # type gp_Ax2
plane = Geom_Plane(gpPlane) # type: OCC.Geom.Geom_Plane
aSurf = Handle_Geom_Surface(plane) # type: Handle_Geom_Surface
anExtC = Geom_Circle(gp_XOY(), 10.0) # type: OCC.Geom.Geom_Circle
anIntC = Geom_Circle(gp_XOY(), 5.0) # type: OCC.Geom.Geom_Circle
anExtE = BRepBuilderAPI_MakeEdge(anExtC.GetHandle())
anIntE = BRepBuilderAPI_MakeEdge(anIntC.GetHandle())
anExtWire = BRepBuilderAPI_MakeWire(anExtE.Edge())
anIntWire = BRepBuilderAPI_MakeWire(anIntE.Edge())
aFace = BRepBuilderAPI_MakeFace(anExtWire.Wire())
aFace.Add(anIntWire.Wire()) # adds wire to the face as a hole
display.DisplayShape(aFace.Face())
edgeList = []
anEdgeExplorer = TopExp_Explorer(aFace.Face(), TopAbs_EDGE)
while anEdgeExplorer.More():
anEdge = topods.Edge(anEdgeExplorer.Current())
anEdgeExplorer.Next()
edgeList.append(anEdge)
print 'Number of edges: ', len(edgeList)
Topology.dumpTopology(aFace.Face())
topo = Topology.Topo(aFace.Face())
print 'Number of wires: ', topo.number_of_wires_from_face(aFace.Face())
wires = topo.wires_from_face(aFace.Face())
for wire in wires:
display.DisplayShape(wire)
def topoDumpAP():
if win.activePart:
Topology.dumpTopology(win.activePart)