PythonOCC基础使用：建模——三维特征运算（拉伸/放样/管道/沿路径放样

1. 拉伸

• 第一种情况：封闭曲线拉伸
  

from OCC.Core.BRepBuilderAPI import BRepBuilderAPI_MakeEdge, BRepBuilderAPI_MakeWire, BRepBuilderAPI_MakeFace
from OCC.Core.BRepPrimAPI import BRepPrimAPI_MakePrism, BRepPrimAPI_MakeRevol
from OCC.Core.gp import gp_Pnt, gp_Vec, gp_Ax1, gp_Dir

E11 = BRepBuilderAPI_MakeEdge(gp_Pnt(40.,0.,0.), gp_Pnt(82.5,25.,0.)).Edge()
E12 = BRepBuilderAPI_MakeEdge(gp_Pnt(82.5,25.,0.), gp_Pnt(42.5,93.,0.)).Edge()
E13 = BRepBuilderAPI_MakeEdge(gp_Pnt(42.5,93.,0.), gp_Pnt(0.,68.,0.)).Edge()
E14 = BRepBuilderAPI_MakeEdge(gp_Pnt(0.,68.,0.), gp_Pnt(40.,0.,0.)).Edge()
W1 = BRepBuilderAPI_MakeWire(E11,E12,E13,E14)

S =BRepPrimAPI_MakePrism(BRepBuilderAPI_MakeFace(W1.Wire()).Face(),gp_Vec(0.,0,50))

if __name__ == "__main__":
    from OCC.Display.SimpleGui import init_display
    display, start_display, add_menu, add_function_to_menu = init_display()
    display.DisplayShape(W1.Shape(),update=True)
    display.DisplayShape(S.Shape(), update=True)



    start_display()

• 第二种情况：非封闭曲线拉伸
  -

from OCC.Core.BRepBuilderAPI import BRepBuilderAPI_MakeEdge, BRepBuilderAPI_MakeWire, BRepBuilderAPI_MakeFace
from<