PostGIS  2.5.7dev-r@@SVN_REVISION@@

◆ LWGEOM_inside_circle_point()

Datum LWGEOM_inside_circle_point ( PG_FUNCTION_ARGS  )

Definition at line 1097 of file lwgeom_functions_basic.c.

1098 {
1099  GSERIALIZED *geom;
1100  double cx = PG_GETARG_FLOAT8(1);
1101  double cy = PG_GETARG_FLOAT8(2);
1102  double rr = PG_GETARG_FLOAT8(3);
1103  LWPOINT *lwpoint;
1104  LWGEOM *lwgeom;
1105  int inside;
1106 
1107  geom = PG_GETARG_GSERIALIZED_P(0);
1108  lwgeom = lwgeom_from_gserialized(geom);
1109  lwpoint = lwgeom_as_lwpoint(lwgeom);
1110  if ( lwpoint == NULL || lwgeom_is_empty(lwgeom) )
1111  {
1112  PG_FREE_IF_COPY(geom, 0);
1113  PG_RETURN_NULL(); /* not a point */
1114  }
1115 
1116  inside = lwpoint_inside_circle(lwpoint, cx, cy, rr);
1117  lwpoint_free(lwpoint);
1118 
1119  PG_FREE_IF_COPY(geom, 0);
1120  PG_RETURN_BOOL(inside);
1121 }
lwgeom_from_gserialized
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition: g_serialized.c:1530
lwpoint_free
void lwpoint_free(LWPOINT *pt)
Definition: lwpoint.c:213
lwpoint_inside_circle
int lwpoint_inside_circle(const LWPOINT *p, double cx, double cy, double rad)
Definition: lwgeom.c:653
lwgeom_as_lwpoint
LWPOINT * lwgeom_as_lwpoint(const LWGEOM *lwgeom)
Definition: lwgeom.c:161
lwgeom_is_empty
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:1393

References lwgeom_as_lwpoint(), lwgeom_from_gserialized(), lwgeom_is_empty(), lwpoint_free(), and lwpoint_inside_circle().

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