如何在Java中旋转图形

如果您使用plain

Graphics

Graphics2D

Graphics2D g2d = (Graphics2D)g;

旋转整个

Graphics2D

g2d.rotate(Math.toRadians(degrees));//draw shape/image (will be rotated)

要重置旋转（因此您只旋转一件事）：

AffineTransform old = g2d.getTransform();g2d.rotate(Math.toRadians(degrees));//draw shape/image (will be rotated)g2d.setTransform(old);//things you draw after here will not be rotated

例：

class MyPanel extends JPanel {    @Override    public void paintComponent(Graphics g) {        super.paintComponent(g);        Graphics2D g2d = (Graphics2D)g;        AffineTransform old = g2d.getTransform();        g2d.rotate(Math.toRadians(degrees));        //draw shape/image (will be rotated)        g2d.setTransform(old);        //things you draw after here will not be rotated    }}