double[] dxy = calcDeltaXY(pm); xydata[pm].setLocation(xydata[pm].getX()+dxy[0], xydata[pm].getY()+dxy[1]);
double[] dxy = calcDeltaXY(pm); xydata[pm].setLocation(xydata[pm].getX()+dxy[0], xydata[pm].getY()+dxy[1]);
double[] dxy = calcDeltaXY(pm); xydata[pm].setLocation(xydata[pm].getX()+dxy[0], xydata[pm].getY()+dxy[1]);
double[] dxy = calcDeltaXY(pm); xydata[pm].setLocation(xydata[pm].getX()+dxy[0], xydata[pm].getY()+dxy[1]);