PostGIS  2.5.0dev-r@@SVN_REVISION@@

◆ _lwt_split_by_nodes()

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

Definition at line 5697 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().

5698 {
5699  LWCOLLECTION *col = lwgeom_as_lwcollection(nodes);
5700  uint32_t i;
5701  LWGEOM *bg;
5702 
5703  bg = lwgeom_clone_deep(g);
5704  if ( ! col->ngeoms ) return bg;
5705 
5706  for (i=0; i<col->ngeoms; ++i)
5707  {
5708  LWGEOM *g2;
5709  g2 = lwgeom_split(bg, col->geoms[i]);
5710  lwgeom_free(bg);
5711  bg = g2;
5712  }
5713  bg->srid = nodes->srid;
5714 
5715  return bg;
5716 }
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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