public Point2D getPoint2D( Point2D srcPt, Point2D dstPt ) {
        if ( dstPt == null )
            dstPt = new Point2D.Double();
        dstPt.setLocation( srcPt.getX(), srcPt.getY() );
        return dstPt;
    }
Return a mod b. This differs from the % operator with respect to negative numbers.
@param a the dividend
@param b the divisor
@return a mod b
tomighty-swing/src/main/java/com/jhlabs/image/BrushedMetalFilter.java