_lwt_EdgeRingGetFace()

static LWT_ELEMID _lwt_EdgeRingGetFace ( LWT_EDGERING *  ring )

static

Definition at line 6437 of file lwgeom_topo.c.

{
  LWT_EDGERING_ELEM *el = ring->elems[0];
  return el->left ? el->edge->face_left : el->edge->face_right;
}

References LWT_EDGERING_ELEM_T::edge, LWT_EDGERING_T::elems, LWT_ISO_EDGE::face_left, LWT_ISO_EDGE::face_right, and LWT_EDGERING_ELEM_T::left.

Referenced by _lwt_FindFaceContainingRing().

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