Vector3d directedDirection = direction(dcp, dcpStart ? Direction.NEXT : Direction.PREVIOUS);
if (directedDirection == null) {
//updateTurnControlPointTurn(dcp, dcp.getPrevious(), dcp.getNext());
Vector3d directedDirection = direction(dcp, dcpStart ? Direction.NEXT : Direction.PREVIOUS);
if (directedDirection == null) {
//updateTurnControlPointTurn(dcp, dcp.getPrevious(), dcp.getNext());