Cutting Edge

# coding: utf-8
from OCC import GC
from OCC import gp
from OCC import TopoDS
from OCC import BRepBuilderAPI
from OCC import BRepPrimAPI
from OCC import BRepFill
from OCC.Display.SimpleGui import init_display

a = gp.gp_Pnt(-1.0, 0.0, 0.0)
b = gp.gp_Pnt(0.0, -1.0, 0.0)
c = gp.gp_Pnt(1.0, 0.0, 0.0)
d = gp.gp_Pnt(1.0, 0.0, 5.0)
e = gp.gp_Pnt(0.0, -1.0, 5.0)
f = gp.gp_Pnt(-1.0, 0.0, 5.0)

arc1 = GC.GC_MakeArcOfCircle(a, b, c)
arc1Edge = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(arc1.Value())
side1Edge = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(c, d)
arc2 = GC.GC_MakeArcOfCircle(d, e, f)
arc2Edge = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(arc2.Value())
side2Edge = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(f, a)
#side3Edge = BRepBuilderAPI.BRepBuilderAPI_MakeEdge(b, e)

c0 = BRepFill.OCC.GeomAbs.GeomAbs_C0
c1 = BRepFill.OCC.GeomAbs.GeomAbs_C1
c2 = BRepFill.OCC.GeomAbs.GeomAbs_C2
filling = BRepFill.BRepFill_Filling()

filling.Add(arc1Edge.Edge(), c0)
filling.Add(side1Edge.Edge(), c0)
filling.Add(arc2Edge.Edge(), c0)
filling.Add(side2Edge.Edge(), c0)
#filling.Add(side3Edge.Edge(), c0)

filling.Build()
face = filling.Face()

prismVec = gp.gp_Vec(0.0, -5.0, 0.0)
body = BRepPrimAPI.BRepPrimAPI_MakePrism(face, prismVec)
display, start_display, add_menu, add_function_to_menu = init_display()
display.DisplayShape(body.Shape(), update=True)
start_display()