PostGIS  3.1.6dev-r@@SVN_REVISION@@

◆ LWGEOM_inside_circle_point()

Datum LWGEOM_inside_circle_point ( PG_FUNCTION_ARGS  )

Definition at line 1104 of file lwgeom_functions_basic.c.

1105 {
1106  GSERIALIZED *geom;
1107  double cx = PG_GETARG_FLOAT8(1);
1108  double cy = PG_GETARG_FLOAT8(2);
1109  double rr = PG_GETARG_FLOAT8(3);
1110  LWPOINT *lwpoint;
1111  LWGEOM *lwgeom;
1112  int inside;
1113 
1114  geom = PG_GETARG_GSERIALIZED_P(0);
1115  lwgeom = lwgeom_from_gserialized(geom);
1116  lwpoint = lwgeom_as_lwpoint(lwgeom);
1117  if (lwpoint == NULL || lwgeom_is_empty(lwgeom))
1118  {
1119  PG_FREE_IF_COPY(geom, 0);
1120  PG_RETURN_NULL(); /* not a point */
1121  }
1122 
1123  inside = lwpoint_inside_circle(lwpoint, cx, cy, rr);
1124  lwpoint_free(lwpoint);
1125 
1126  PG_FREE_IF_COPY(geom, 0);
1127  PG_RETURN_BOOL(inside);
1128 }
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition: gserialized.c:239
void lwpoint_free(LWPOINT *pt)
Definition: lwpoint.c:213
int lwpoint_inside_circle(const LWPOINT *p, double cx, double cy, double rad)
Definition: lwgeom.c:645
static int lwgeom_is_empty(const LWGEOM *geom)
Return true or false depending on whether a geometry is an "empty" geometry (no vertices members)
Definition: lwinline.h:203
static LWPOINT * lwgeom_as_lwpoint(const LWGEOM *lwgeom)
Definition: lwinline.h:131

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

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