geos.GEOSTopologyPreserveSimplify ⇒ GEOSGeometry ⏏
Apply the Douglas/Peucker algorithm to the coordinate sequences of the input geometry. Removes "unnecessary" vertices, vertices that are co-linear within the tolerance distance. Returns a valid output geometry, checking for collapses, ring-intersections, etc and attempting to avoid. More computationally expensive than GEOSSimplify()
Kind: global property of geos
Returns: GEOSGeometry - The simplified geometry Caller is responsible for freeing with GEOSGeom_destroy().
| Param | Type | Description |
|---|---|---|
| g | GEOSGeometry | The input geometry |
| tolerance | number | The tolerance to apply. Larger tolerance leads to simpler output. |
geos.GEOSTopologyPreserveSimplify_r ⇒ GEOSGeometry ⏏
Apply the Douglas/Peucker algorithm to the coordinate sequences of the input geometry. Removes "unnecessary" vertices, vertices that are co-linear within the tolerance distance. Returns a valid output geometry, checking for collapses, ring-intersections, etc and attempting to avoid. More computationally expensive than GEOSSimplify()
Kind: global property of geos
Returns: GEOSGeometry - The simplified geometry Caller is responsible for freeing with GEOSGeom_destroy().
| Param | Type | Description |
|---|---|---|
| handle | GEOSContextHandle_t | - |
| g | GEOSGeometry | The input geometry |
| tolerance | number | The tolerance to apply. Larger tolerance leads to simpler output. |