PostGIS  2.3.7dev-r@@SVN_REVISION@@
Datum LWGEOM_inside_circle_point ( PG_FUNCTION_ARGS  )

Definition at line 1093 of file lwgeom_functions_basic.c.

References dumpnode::geom, lwgeom_as_lwpoint(), lwgeom_from_gserialized(), lwgeom_is_empty(), lwpoint_free(), and lwpoint_inside_circle().

1094 {
1095  GSERIALIZED *geom;
1096  double cx = PG_GETARG_FLOAT8(1);
1097  double cy = PG_GETARG_FLOAT8(2);
1098  double rr = PG_GETARG_FLOAT8(3);
1099  LWPOINT *lwpoint;
1100  LWGEOM *lwgeom;
1101  int inside;
1102 
1103  geom = PG_GETARG_GSERIALIZED_P(0);
1104  lwgeom = lwgeom_from_gserialized(geom);
1105  lwpoint = lwgeom_as_lwpoint(lwgeom);
1106  if ( lwpoint == NULL || lwgeom_is_empty(lwgeom) )
1107  {
1108  PG_FREE_IF_COPY(geom, 0);
1109  PG_RETURN_NULL(); /* not a point */
1110  }
1111 
1112  inside = lwpoint_inside_circle(lwpoint, cx, cy, rr);
1113  lwpoint_free(lwpoint);
1114 
1115  PG_FREE_IF_COPY(geom, 0);
1116  PG_RETURN_BOOL(inside);
1117 }
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
void lwpoint_free(LWPOINT *pt)
Definition: lwpoint.c:195
int lwpoint_inside_circle(const LWPOINT *p, double cx, double cy, double rad)
Definition: lwgeom.c:579
LWPOINT * lwgeom_as_lwpoint(const LWGEOM *lwgeom)
Definition: lwgeom.c:93
LWGEOM * geom
int lwgeom_is_empty(const LWGEOM *geom)
Return true or false depending on whether a geometry is an "empty" geometry (no vertices members) ...
Definition: lwgeom.c:1310

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