PostGIS  2.4.9dev-r@@SVN_REVISION@@

◆ lwpoly_segmentize2d()

LWPOLY* lwpoly_segmentize2d ( LWPOLY poly,
double  dist 
)

Definition at line 323 of file lwpoly.c.

References lwalloc(), lwfree(), lwpoly_construct(), LWPOLY::nrings, ptarray_free(), ptarray_segmentize2d(), LWPOLY::rings, and LWPOLY::srid.

Referenced by lwgeom_segmentize2d().

324 {
325  POINTARRAY **newrings;
326  uint32_t i;
327 
328  newrings = lwalloc(sizeof(POINTARRAY *)*poly->nrings);
329  for (i=0; i<poly->nrings; i++)
330  {
331  newrings[i] = ptarray_segmentize2d(poly->rings[i], dist);
332  if ( ! newrings[i] ) {
333  while (i--) ptarray_free(newrings[i]);
334  lwfree(newrings);
335  return NULL;
336  }
337  }
338  return lwpoly_construct(poly->srid, NULL,
339  poly->nrings, newrings);
340 }
void lwfree(void *mem)
Definition: lwutil.c:244
void ptarray_free(POINTARRAY *pa)
Definition: ptarray.c:330
POINTARRAY * ptarray_segmentize2d(const POINTARRAY *ipa, double dist)
Returns a modified POINTARRAY so that no segment is longer than the given distance (computed using 2d...
Definition: ptarray.c:415
unsigned int uint32_t
Definition: uthash.h:78
LWPOLY * lwpoly_construct(int srid, GBOX *bbox, uint32_t nrings, POINTARRAY **points)
Definition: lwpoly.c:43
POINTARRAY ** rings
Definition: liblwgeom.h:457
int nrings
Definition: liblwgeom.h:455
int32_t srid
Definition: liblwgeom.h:454
void * lwalloc(size_t size)
Definition: lwutil.c:229
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