# RailType enum

Namespace: [Rhino.Geometry](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.geometry.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md) · Since v6.0

```cs
public enum RailType
```

Rail types used for creating filleted Brep edges

## Values

| Name | Value | Description |
| --- | --- | --- |
| DistanceFromEdge | 0 | The distance from the edge curves determines the intersection. |
| RollingBall | 1 | The radius of a rolling ball determines the intersection. |
| DistanceBetweenRails | 2 | The distance between the edge rails determines the intersection. |