用Graphics的drawLine画线或圆,怎么设置线宽?

Question

用Graphics的drawLine画线或圆,怎么设置线宽?
默认的总是1个象素,怎么修改或设置线宽属性?
谢谢

Answer 1

//Graphics不行,Graphics2D可以,利用setStroke()方法设置
Graphics g;
g=cv.getGraphics(); Graphics2D g2d = (Graphics2D)g;
BasicStroke bs=new BasicStroke(width);//width是线宽,float型g2d.setStroke(bs);
g2d.drawRect(10,10,80,80);

Answer 2

private void drawNet( Graphics g ){
            int height = getHeight();
            int width = getWidth();
            Graphics2D g2=(Graphics2D)g;
            coord.setNet(yUnit , xUnit);
            coord.setNetColor( Color.gray );
            g2.setStroke( new BasicStroke(1));   //这局话
            coord.drawNet(g);
    }