| Interface | Description | 
|---|---|
| IDataView | 
 View used by an observer to display part of the environment 
 | 
| Class | Description | 
|---|---|
| GeneralDataView2D | 
 A general 2D view that presents all Objects in a Space2D to the observer. 
 | 
| GeneralDataView2D3D | 
 A general 2D view that presents all Objects in a Space2D to the observer. 
 | 
| GeneralDataView3D | 
 A general 2D view that presents all Objects in a Space2D to the observer. 
 | 
| LocalDataView2D | 
 A view showing only objects in a local range. 
 |