PostGIS  3.0.6dev-r@@SVN_REVISION@@

◆ ST_DelaunayTriangles()

Datum ST_DelaunayTriangles ( PG_FUNCTION_ARGS  )

Definition at line 3096 of file postgis/lwgeom_geos.c.

3097 {
3098  GSERIALIZED *result;
3099  GSERIALIZED *geom;
3100  LWGEOM *lwgeom_in, *lwgeom_out;
3101  double tolerance = 0.0;
3102  int flags = 0;
3103 
3104  geom = PG_GETARG_GSERIALIZED_P(0);
3105  tolerance = PG_GETARG_FLOAT8(1);
3106  flags = PG_GETARG_INT32(2);
3107 
3108  lwgeom_in = lwgeom_from_gserialized(geom);
3109  lwgeom_out = lwgeom_delaunay_triangulation(lwgeom_in, tolerance, flags);
3110  lwgeom_free(lwgeom_in) ;
3111 
3112  if ( ! lwgeom_out )
3113  {
3114  PG_FREE_IF_COPY(geom, 0);
3115  PG_RETURN_NULL();
3116  }
3117 
3118  result = geometry_serialize(lwgeom_out) ;
3119  lwgeom_free(lwgeom_out) ;
3120 
3121  PG_FREE_IF_COPY(geom, 0);
3122  PG_RETURN_POINTER(result);
3123 }
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition: gserialized.c:239
LWGEOM * lwgeom_delaunay_triangulation(const LWGEOM *geom, double tolerance, int32_t edgeOnly)
Take vertices of a geometry and build a delaunay triangulation on them.
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1138
GSERIALIZED * geometry_serialize(LWGEOM *lwgeom)

References geometry_serialize(), lwgeom_delaunay_triangulation(), lwgeom_free(), and lwgeom_from_gserialized().

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