_lwt_CheckFacesExist()

static int _lwt_CheckFacesExist ( LWT_TOPOLOGY *  topo )

static

Definition at line 777 of file lwgeom_topo_polygonizer.c.

{
  LWT_ISO_FACE *faces;
  int fields = LWT_COL_FACE_FACE_ID;
  uint64_t nelems = 1;
  GBOX qbox;
 
  qbox.xmin = qbox.ymin = -DBL_MAX;
  qbox.xmax = qbox.ymax = DBL_MAX;
  faces = lwt_be_getFaceWithinBox2D( topo, &qbox, &nelems, fields, 1);
  if (nelems == UINT64_MAX)
  {
          PGTOPO_BE_ERROR();
          return -1;
  }
  if ( faces )
  {
    /* we do not call _lwt_release_faces because we are not asking
     * for the MBR so there are no nested objects to release */
    lwfree(faces);
  }
  return nelems;
}

References lwfree(), lwt_be_getFaceWithinBox2D(), LWT_COL_FACE_FACE_ID, PGTOPO_BE_ERROR, GBOX::xmax, GBOX::xmin, GBOX::ymax, and GBOX::ymin.

Referenced by lwt_Polygonize().

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