Java2d:减慢旋转速度(就像幸运轮一样)

import javax.swing.*;
import java.awt.*;
import java.awt.geom.AffineTransform;

public class RotationExample extends JPanel {
    private double angle = 0;

    public RotationExample() {
        Timer timer = new Timer(50, e -> {
            angle += Math.toRadians(1); // 每次旋转1度
            repaint();
        });
        timer.start();
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);

        Graphics2D g2d = (Graphics2D) g.create();
        int centerX = getWidth() / 2;
        int centerY = getHeight() / 2;

        // 设置旋转中心和角度
        AffineTransform transform = new AffineTransform();
        transform.rotate(angle, centerX, centerY);
        g2d.setTransform(transform);

        // 绘制旋转的图形（例如幸运轮）
        // ...

        g2d.dispose();
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Rotation Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 400);
        frame.add(new RotationExample());
        frame.setVisible(true);
    }
}