@Override
    public void transform(AffineTransform t) {
        AffineTransform tx = getTransform();
        tx.concatenate(t);
        setTransform(tx);
    }
@Override
    public void transform(AffineTransform t) {
        AffineTransform tx = getTransform();
        tx.concatenate(t);
        setTransform(tx);
    }
@ Override public void transform ( AffineTransform t ) { AffineTransform tx = getTransform ( ) ; tx . concatenate ( t ) ; setTransform ( tx ) ; }
Applies this transform to the existing transform by concatenating it.

@param t  the transform ({@code null} not permitted).
Applies this transform to the existing transform by concatenating it .