# RefitTrimSectionMode 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)

```cs
public enum RefitTrimSectionMode
```

The mode for dividing the surface into sections

## Values

| Name | Value | Description |
| --- | --- | --- |
| NoSections | 0 | just output one "upper" and one "lower" surface |
| DivideAtInputKnots | 1 | divide into sections at each of the input surface's existing knots |
| DivideAtAddedKnots | 2 | Yes, divide into sections at each of the "nKnot" added knot values |
| DivideAtAllKnots | 3 | Yes, divide into sections at ALL knot values (i.e. both 1 and 2) |