PostGIS  3.7.0dev-r@@SVN_REVISION@@

◆ linemerge()

Datum linemerge ( PG_FUNCTION_ARGS  )

Definition at line 2169 of file postgis/lwgeom_geos.c.

2170 {
2171  GSERIALIZED *geom1;
2172  bool directed = false;
2174  LWGEOM *lwgeom1, *lwresult ;
2175 
2176  geom1 = PG_GETARG_GSERIALIZED_P(0);
2177 
2178  if ( PG_NARGS() > 1 )
2179  directed = PG_GETARG_BOOL(1);
2180 
2181  lwgeom1 = lwgeom_from_gserialized(geom1) ;
2182 
2183  lwresult = lwgeom_linemerge_directed(lwgeom1, directed ? LW_TRUE : LW_FALSE);
2184  result = geometry_serialize(lwresult) ;
2185 
2186  lwgeom_free(lwgeom1) ;
2187  lwgeom_free(lwresult) ;
2188 
2189  PG_FREE_IF_COPY(geom1, 0);
2190 
2191  PG_RETURN_POINTER(result);
2192 }
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:268
#define LW_FALSE
Definition: liblwgeom.h:94
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1218
LWGEOM * lwgeom_linemerge_directed(const LWGEOM *geom1, int directed)
#define LW_TRUE
Return types for functions with status returns.
Definition: liblwgeom.h:93

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

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