Added evolved shape example

Author: tpaviot

examples/core_topology_evolved_shape.py

@@ -0,0 +1,47 @@
+##Copyright 2009-2015 Thomas Paviot ([email protected])
+##
+##This file is part of pythonOCC.
+##
+##pythonOCC is free software: you can redistribute it and/or modify
+##it under the terms of the GNU Lesser General Public License as published by
+##the Free Software Foundation, either version 3 of the License, or
+##(at your option) any later version.
+##
+##pythonOCC is distributed in the hope that it will be useful,
+##but WITHOUT ANY WARRANTY; without even the implied warranty of
+##MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+##GNU Lesser General Public License for more details.
+##
+##You should have received a copy of the GNU Lesser General Public License
+##along with pythonOCC.  If not, see <http://www.gnu.org/licenses/>.
+
+from OCC.gp import gp_Pnt
+from OCC.BRepBuilderAPI import BRepBuilderAPI_MakePolygon
+from OCC.GeomAbs import GeomAbs_Arc
+from OCC.BRepOffsetAPI import BRepOffsetAPI_MakeEvolved
+
+from OCC.Display.SimpleGui import init_display
+display, start_display, add_menu, add_function_to_menu = init_display()
+
+
+def evolved_shape():
+    P = BRepBuilderAPI_MakePolygon()
+    P.Add(gp_Pnt(0., 0., 0.))
+    P.Add(gp_Pnt(200., 0., 0.))
+    P.Add(gp_Pnt(200., 200., 0.))
+    P.Add(gp_Pnt(0., 200., 0.))
+    P.Add(gp_Pnt(0., 0., 0.))
+    wprof = BRepBuilderAPI_MakePolygon(gp_Pnt(0., 0., 0.), gp_Pnt(-60., -60., -200.))
+    S = BRepOffsetAPI_MakeEvolved(P.Wire(),
+                                  wprof.Wire(),
+                                  GeomAbs_Arc,
+                                  True,
+                                  False,
+                                  True,
+                                  0.0001)
+    S.Build()
+    display.DisplayShape(S.Shape(), update=True)
+
+if __name__ == '__main__':
+    evolved_shape()
+    start_display()