PostGIS  2.5.1dev-r@@SVN_REVISION@@

◆ _lwt_split_by_nodes()

static LWGEOM* _lwt_split_by_nodes ( const LWGEOM g,
const LWGEOM nodes 
)
static

Definition at line 5467 of file lwgeom_topo.c.

References LWCOLLECTION::geoms, lwgeom_as_lwcollection(), lwgeom_clone_deep(), lwgeom_free(), lwgeom_split(), LWCOLLECTION::ngeoms, and LWGEOM::srid.

Referenced by _lwt_AddLine().

5468 {
5469  LWCOLLECTION *col = lwgeom_as_lwcollection(nodes);
5470  uint32_t i;
5471  LWGEOM *bg;
5472 
5473  bg = lwgeom_clone_deep(g);
5474  if ( ! col->ngeoms ) return bg;
5475 
5476  for (i=0; i<col->ngeoms; ++i)
5477  {
5478  LWGEOM *g2;
5479  g2 = lwgeom_split(bg, col->geoms[i]);
5480  lwgeom_free(bg);
5481  bg = g2;
5482  }
5483  bg->srid = nodes->srid;
5484 
5485  return bg;
5486 }
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1144
LWGEOM * lwgeom_clone_deep(const LWGEOM *lwgeom)
Deep clone an LWGEOM, everything is copied.
Definition: lwgeom.c:520
uint32_t ngeoms
Definition: liblwgeom.h:509
int32_t srid
Definition: liblwgeom.h:401
unsigned int uint32_t
Definition: uthash.h:78
LWGEOM ** geoms
Definition: liblwgeom.h:511
LWCOLLECTION * lwgeom_as_lwcollection(const LWGEOM *lwgeom)
Definition: lwgeom.c:224
LWGEOM * lwgeom_split(const LWGEOM *lwgeom_in, const LWGEOM *blade_in)
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