| Interface | Description | 
|---|---|
| Circle | 
 A circle, denoted by a center point and radius. 
 | 
| LineString | |
| Point | 
 A Point with X and Y coordinates. 
 | 
| Polygon | 
 A polygon, denoted by 3 or more points 
 | 
| Rectangle | 
 A rectangle, denoted by 2 points. 
 | 
| Shape | 
 Markup interface to serve as base for all spatial shapes supported by XAP. 
 | 
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