The namespace contains a structure for ColorRGB and Point3D.

### Classes
| Class | Description |
| :- | :- |
| [`ColorRGB`](/cad/python-net/aspose.cad.fileformats.iges.commondefinitions/colorrgb) | Structure that defines RGB color |
| [`Point3D`](/cad/python-net/aspose.cad.fileformats.iges.commondefinitions/point3d) | Structure that defines a point in 3D space with X,Y and Z coordinates |