PostGIS  3.2.2dev-r@@SVN_REVISION@@

◆ _lwt_split_by_nodes()

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

Definition at line 5647 of file lwgeom_topo.c.

5648 {
5649  LWCOLLECTION *col = lwgeom_as_lwcollection(nodes);
5650  uint32_t i;
5651  LWGEOM *bg;
5652 
5653  bg = lwgeom_clone_deep(g);
5654  if ( ! col->ngeoms ) return bg;
5655 
5656  for (i=0; i<col->ngeoms; ++i)
5657  {
5658  LWGEOM *g2;
5659  g2 = lwgeom_split(bg, col->geoms[i]);
5660  lwgeom_free(bg);
5661  bg = g2;
5662  }
5663  bg->srid = nodes->srid;
5664 
5665  return bg;
5666 }
void lwgeom_free(LWGEOM *geom)
Definition: lwgeom.c:1138
LWGEOM * lwgeom_split(const LWGEOM *lwgeom_in, const LWGEOM *blade_in)
LWGEOM * lwgeom_clone_deep(const LWGEOM *lwgeom)
Deep clone an LWGEOM, everything is copied.
Definition: lwgeom.c:512
LWCOLLECTION * lwgeom_as_lwcollection(const LWGEOM *lwgeom)
Definition: lwgeom.c:216
uint32_t ngeoms
Definition: liblwgeom.h:594
LWGEOM ** geoms
Definition: liblwgeom.h:589
int32_t srid
Definition: liblwgeom.h:474

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

Referenced by _lwt_AddLine().

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