# SmoothingCoordinateSystem 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 SmoothingCoordinateSystem
```

The direction of the smoothing used by Curve, Surface, and Mesh Smooth.

## Values

| Name | Value | Description |
| --- | --- | --- |
| World | 0 | World coordinates |
| CPlane | 1 | Construction plane coordinates |
| Object | 2 | Object u, v, and n coordinates |