# Grasshopper.GUI.Stacks namespace

Assembly: [Grasshopper](https://developer.rhino3d.com/api/gh1/assembly/grasshopper.md)

## Enums

- [GH_Interpolation](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.stacks.gh-interpolation.md): Interpolation method for time based frame animation.

## Classes

- [GH_Motion](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.stacks.gh-motion.md): Provides functionality for individual rectangle animation.
- [GH_Stack](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.stacks.gh-stack.md): Represents a manager for animating asynchronous box movements. This is a useful feature for GUIs that want to mimic physical behaviour or continuous UI changes.

## Delegates

- [GH_Stack.GH_StackEventDelegate](https://developer.rhino3d.com/api/gh1/type/grasshopper.gui.stacks.gh-stack.gh-stackeventdelegate.md)