# GH_Interpolation enum

Namespace: [Grasshopper.GUI](https://developer.rhino3d.com/api/gh1/namespace/grasshopper.gui.md) · Assembly: [Grasshopper](https://developer.rhino3d.com/api/gh1/assembly/grasshopper.md)

```cs
public enum GH_Interpolation
```

Enumerates the possible animation progression types.

## Values

| Name | Value | Description |
| --- | --- | --- |
| None | 0 | No animation occurs. |
| NearestNeighbour | 1 | Animation interpolation is either equal to A or B, whichever is closest. |
| Linear | 2 | Linear interpolation between A and B. |
| EaseIn | 3 | Interpolation that has a derivative of zero at the start. |
| EaseOut | 4 | Inteprolation that has a derivative of zero at the end. |
| EaseInAndOut | 5 | Interpolation that has a derivative of zero at both ends. |