/** @return */
public WB_Coord getFaceCenter() {
if (_halfedge == null) {
return null;
}
HE_Halfedge he = _halfedge;
final WB_Point _center = new WB_Point();
int c = 0;
do {
_center.addSelf(he.getVertex());
c++;
he = he.getNextInFace();
} while (he != _halfedge);
_center.divSelf(c);
return new WB_Point(_center);
}
