| 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 pass information about the event that 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. | 

