也不太明白,百科全书里好像没有用CATGeoFactory的例子。就连CAAGeometricObjects.edu里点也是用GSMFactory画的。区别好像就这么一点点。
The GSMInterfaces Framework exports some capability to create Shape/Wireframe Feature such as Points, Lines, Sweep, Extrapolation...
Those Objects are Geometrical Features (or Procedures) that have additional properties compare to Geometrical Objects like CATPoint, CATLine, CATPlane, etc.
个人想法 |