Point
 | 
| Name | Description | |
|---|---|---|
| GetNormal | Returns the normal to the surface at the point corresponding to the parameter. Currently not implemented. | |
| GetNormal(Point2d) | Returns the normal to the surface at the point corresponding to the parameter. Currently not implemented. | |
| GetNormal(Surface, Point2d) | Returns the normal to the specified surface at the point corresponding to the parameter. Currently not implemented. |