Added topology edge example

Author: tpaviot

examples/core_topology_edge.py

@@ -0,0 +1,82 @@
+##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/>.
+
+import math
+
+from OCC.gp import gp_Pnt, gp_Lin, gp_Ax1, gp_Dir, gp_Elips, gp_Ax2
+from OCC.BRepBuilderAPI import (BRepBuilderAPI_MakeEdge,
+                                BRepBuilderAPI_MakeVertex)
+from OCC.TColgp import TColgp_Array1OfPnt
+from OCC.Geom import Geom_BezierCurve
+
+from OCC.Display.SimpleGui import init_display
+display, start_display, add_menu, add_function_to_menu = init_display()
+
+
+def edge(event=None):
+    # The blud edge
+    BlueEdge = BRepBuilderAPI_MakeEdge(gp_Pnt(-80, -50, -20),
+                                       gp_Pnt(-30, -60, -60))
+    V1 = BRepBuilderAPI_MakeVertex(gp_Pnt(-20, 10, -30))
+    V2 = BRepBuilderAPI_MakeVertex(gp_Pnt(10, 7, -25))
+    YellowEdge = BRepBuilderAPI_MakeEdge(V1.Vertex(), V2.Vertex())
+
+    #The white edge
+    line = gp_Lin(gp_Ax1(gp_Pnt(10, 10, 10), gp_Dir(1, 0, 0)))
+    WhiteEdge = BRepBuilderAPI_MakeEdge(line, -20, 10)
+
+    #The red edge
+    Elips = gp_Elips(gp_Ax2(gp_Pnt(10, 0, 0), gp_Dir(1, 1, 1)), 60, 30)
+    RedEdge = BRepBuilderAPI_MakeEdge(Elips, 0, math.pi/2)
+
+    # The green edge and the both extreme vertex
+    P1 = gp_Pnt(-15, 200, 10)
+    P2 = gp_Pnt(5, 204, 0)
+    P3 = gp_Pnt(15, 200, 0)
+    P4 = gp_Pnt(-15, 20, 15)
+    P5 = gp_Pnt(-5, 20, 0)
+    P6 = gp_Pnt(15, 20, 0)
+    P7 = gp_Pnt(24, 120, 0)
+    P8 = gp_Pnt(-24, 120, 12.5)
+    array = TColgp_Array1OfPnt(1, 8)
+    array.SetValue(1, P1)
+    array.SetValue(2, P2)
+    array.SetValue(3, P3)
+    array.SetValue(4, P4)
+    array.SetValue(5, P5)
+    array.SetValue(6, P6)
+    array.SetValue(7, P7)
+    array.SetValue(8, P8)
+    curve = Geom_BezierCurve(array)
+    ME = BRepBuilderAPI_MakeEdge(curve.GetHandle())
+    GreenEdge = ME
+    V3 = ME.Vertex1()
+    V4 = ME.Vertex2()
+
+    display.DisplayColoredShape(BlueEdge.Edge(), 'BLUE')
+    display.DisplayShape(V1.Vertex())
+    display.DisplayShape(V2.Vertex())
+    display.DisplayColoredShape(WhiteEdge.Edge(), 'WHITE')
+    display.DisplayColoredShape(YellowEdge.Edge(), 'YELLOW')
+    display.DisplayColoredShape(RedEdge.Edge(), 'RED')
+    display.DisplayColoredShape(GreenEdge.Edge(), 'GREEN')
+    display.DisplayShape(V3)
+    display.DisplayShape(V4, update=True)
+
+if __name__ == '__main__':
+    edge()
+    start_display()