| Class | Description | |
|---|---|---|
 | BaseInteractionAttribute | TODO |
| InsertInteraction | Base class for specific interactions that inserts objects. |
| Interaction | Base class for special GED interaction. |
| InteractionAttribute | TODO |
| InteractionContext | This class is used to pass information about current state of environment and placements to GED interaction. |
| InteractionEvent | This class is used to passed informations about event which has occurred. |
| Position | This class represents a mouse position. |
| SelectionContext | This class is used to pass information current selection to interaction. |
| SelectionInteraction | Base class for specific interactions that selects objects. |
