Enum values
| Name | Value | Description |
|---|---|---|
| Freeform | 0 | The cross-section curve rotates to maintain its angle to the rail throughout the sweep. |
| Roadlike | 1 | Specify an axis for calculating the 3-D rotation of the cross-section. |
| AlignWithSurface | 2 | The cross-section rotates to follow the normal of the surface that the rail lies on. This requires a rail that knows its surface, so pass a BrepEdge or a BrepTrim as the rail. Any other curve falls back to Freeform. |