| Class | Description | 
|---|---|
| GeoHash | A GeoHash module. | 
| HPRtree | Create a SpatialIndex using the Hilbert Packed Rtree (HPRtree) spatial index. | 
| Quadtree | Create a SpatialIndex using the Quad Tree spatial index. | 
| STRtree | Create a SpatialIndex using the STR Tree spatial index. | 
| SpatialIndex | A SpatialIndex base class. | 
| Enum | Description | 
|---|---|
| GeoHash.Direction | A Direction enum used when calculating neighbors |