x=x1; y=yl; for(int i=1;i<=e;i++) SetPixel((int)(x+0.5),(int)(y+0.5)); x+=dx; y+=dy; x=x1; y=y1; for(int i=1;i<=e;i++) { SetPixel((int)(x+0.5), (int)(y+0.5)); x+=dx; y+=dy; } }