geos.GEOSSymDifference ⇒ GEOSGeometry ⏏
Returns the symmetric difference of two geometries A and B: the set of points that fall in A but not within B and the set of points that fall in B but not in A.
Kind: global property of geos
Returns: GEOSGeometry - A newly allocated geometry of the symmetric difference. NULL on exception. Caller is responsible for freeing with GEOSGeom_destroy().
| Param | Type | Description |
|---|---|---|
| ga | GEOSGeometry | geometry A |
| gb | GEOSGeometry | geometry B |
geos.GEOSSymDifferencePrec ⇒ GEOSGeometry ⏏
Returns the symmetric difference of two geometries A and B: the set of points that fall in A but not within B and the set of points that fall in B but not in A. All the vertices of the output geometry must fall on the grid defined by the gridSize, and the output will be a valid geometry.
Kind: global property of geos
Returns: GEOSGeometry - A newly allocated geometry of the symmetric difference. NULL on exception. Caller is responsible for freeing with GEOSGeom_destroy().
| Param | Type | Description |
|---|---|---|
| ga | GEOSGeometry | one of the geometries |
| gb | GEOSGeometry | the other geometry |
| gridSize | number | the cell size of the precision grid |
geos.GEOSSymDifferencePrec_r ⇒ GEOSGeometry ⏏
Returns the symmetric difference of two geometries A and B: the set of points that fall in A but not within B and the set of points that fall in B but not in A. All the vertices of the output geometry must fall on the grid defined by the gridSize, and the output will be a valid geometry.
Kind: global property of geos
Returns: GEOSGeometry - A newly allocated geometry of the symmetric difference. NULL on exception. Caller is responsible for freeing with GEOSGeom_destroy().
| Param | Type | Description |
|---|---|---|
| handle | GEOSContextHandle_t | - |
| g1 | GEOSGeometry | one of the geometries |
| g2 | GEOSGeometry | the other geometry |
| gridSize | number | the cell size of the precision grid |
geos.GEOSSymDifference_r ⇒ GEOSGeometry ⏏
Returns the symmetric difference of two geometries A and B: the set of points that fall in A but not within B and the set of points that fall in B but not in A.
Kind: global property of geos
Returns: GEOSGeometry - A newly allocated geometry of the symmetric difference. NULL on exception. Caller is responsible for freeing with GEOSGeom_destroy().
| Param | Type | Description |
|---|---|---|
| handle | GEOSContextHandle_t | - |
| g1 | GEOSGeometry | geometry A |
| g2 | GEOSGeometry | geometry B |