| Boundary |  | 
| Buffer |  | 
| ConvexHull |  | 
| Difference |  | 
| Distance |  | 
| EhContains |  | 
| EhCoveredBy |  | 
| EhCovers |  | 
| EhDisjoint |  | 
| EhEquals |  | 
| EhInside |  | 
| EhMeet |  | 
| EhOverlap |  | 
| Envelope |  | 
| Intersection |  | 
| JtsSpatialAlgebra | JTS-enabled implementation of spatial algebra, with full support for polygon-related geospatial functions | 
| RCC8DC |  | 
| RCC8EC |  | 
| RCC8EQ |  | 
| RCC8NTPP |  | 
| RCC8NTPPI |  | 
| RCC8PO |  | 
| RCC8TPP |  | 
| RCC8TPPI |  | 
| Relate |  | 
| SfContains |  | 
| SfCrosses |  | 
| SfDisjoint |  | 
| SfEquals |  | 
| SfIntersects |  | 
| SfOverlaps |  | 
| SfTouches |  | 
| SfWithin |  | 
| SRID |  | 
| SymmetricDifference |  | 
| Union |  |