Open CASCADE学习|BRepOffsetAPI_MakeEvolved

BRepBuilderAPI_MakePolygon类

创建一个polygonal wires，可以通过一组点或向量生成，也可以先生成一个空的对象，再添加点。

BRepOffsetAPI_MakeEvolved类

创建一个可展图形，它是通过一个planar spine (face or wire)和一个profile (wire)来生成的，它是一个非循环的sweep (pipe),用profile沿着spline;自相交点将被移除

#include <BRepBuilderAPI_MakePolygon.hxx>
#include <TopoDS_Wire.hxx>
#include <BRepOffsetAPI_MakeEvolved.hxx>
​
#include"Viewer.h"
​
​
int main(int argc, char* argv[])
{
  BRepBuilderAPI_MakePolygon P;
  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.));
  TopoDS_Wire W = P.Wire();
  TopoDS_Wire wprof = BRepBuilderAPI_MakePolygon(gp_Pnt(0., 0., 0.), gp_Pnt(-60., -60., -200.));
  TopoDS_Shape S = BRepOffsetAPI_MakeEvolved(W, wprof, GeomAbs_Arc, Standard_True, Standard_False,Standard_True, 0.0001);
    Viewer vout(50, 50, 500, 500);
    vout << W;
  vout << wprof;
  vout << S;
    vout.StartMessageLoop();
    return 0;
}