ok = block.setSide( i, findBlockSide( B_FRONT, edgeOfFront[i], edgeOfAdj[i],
advAnalys, sidesAround));
// try to find a BACK side by a TOP one
ok = block.setSide( i, findBlockSide( B_FRONT, edgeOfFront[i], edgeOfAdj[i],
advAnalys, sidesAround));
// try to find a BACK side by a TOP one