PostGIS  3.3.9dev-r@@SVN_REVISION@@

◆ linemerge()

Datum linemerge ( PG_FUNCTION_ARGS  )

Definition at line 3097 of file postgis/lwgeom_geos.c.

3098 {
3099  GSERIALIZED *geom1;
3100  bool directed = false;
3102  LWGEOM *lwgeom1, *lwresult ;
3103 
3104  geom1 = PG_GETARG_GSERIALIZED_P(0);
3105 
3106  if ( PG_NARGS() > 1 )
3107  directed = PG_GETARG_BOOL(1);
3108 
3109  lwgeom1 = lwgeom_from_gserialized(geom1) ;
3110 
3111  lwresult = lwgeom_linemerge_directed(lwgeom1, directed ? LW_TRUE : LW_FALSE);
3112  result = geometry_serialize(lwresult) ;
3113 
3114  lwgeom_free(lwgeom1) ;
3115  lwgeom_free(lwresult) ;
3116 
3117  PG_FREE_IF_COPY(geom1, 0);
3118 
3119  PG_RETURN_POINTER(result);
3120 }
char result[OUT_DOUBLE_BUFFER_SIZE]
Definition: cu_print.c:267
LWGEOM * lwgeom_from_gserialized(const GSERIALIZED *g)
Allocate a new LWGEOM from a GSERIALIZED.
Definition: gserialized.c:239
#define LW_FALSE
Definition: liblwgeom.h:109
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1155
LWGEOM * lwgeom_linemerge_directed(const LWGEOM *geom1, int directed)
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:108

References LW_FALSE, LW_TRUE, lwgeom_free(), lwgeom_from_gserialized(), lwgeom_linemerge_directed(), and result.

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