| Class | Description | 
|---|---|
| Overlay | This class is the root polygon which describes every markers within Rhizomatics. | 
| OverlayCircle | Overlay's child class used for parametric generated polygon. | 
| OverlayPolygon | Overlay's child class used for raw polygon's points. | 
| PolyDrawer | Since we can't set the stroke width of a polygon (issue #4087),
 this container stores the drawing of an area as both a  Polylineand aPolygon. | 
| PolyFactory | This class contains static method to compute parametric polygons' coordinates. |