To get the image of a Geofence, use the request:
http://{host}/avl_poi_image/<rid>/<id>/<max_border>/<any.png>
| Name | Description | 
|---|---|
| rid | resource ID | 
| id | Geofence ID | 
| max_border | max image size (from 16 to 256 pixels, recommended: 32) | 
| any | any value (optional), specified if it is needed to download the image instead of using the cached value | 
Returns the image in PNG format.
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