| Interface | Description | 
|---|---|
| Filter | A filter for applying operations to a WorldPainter dimensions. | 
| GlobalOperation | A WorldPainter  operationwhich is not activated and deactivated but invoked instantly. | 
| Operation | A WorldPainter operation or tool which affects the world in some way, directed by the user. | 
| OperationOptions<O extends Operation> | Created by Pepijn Schmitz on 07-11-16. |