java实现心形图案

package Demo;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Image;

import java.awt.Toolkit;

import javax.swing.JFrame;

@SuppressWarnings("serial")

class Cardioid extends JFrame

//定义窗口大小

private static final int WIDTH = 480;

private static final int HEIGHT = 600;

//获取屏幕大小

private static int WINDOW_WIDTH = Toolkit.getDefaultToolkit().getScreenSize().width;

private static int WINDOW_HEIGHT = Toolkit.getDefaultToolkit().getScreenSize().height;

//构造函数

public Cardioid(){

//设置窗口标题

super("❤形线");

//设置背景色

this.setBackground(Color.BLACK);

//设置窗口位置

this.setLocation((WINDOW_WIDTH - WIDTH)/2, (WINDOW_HEIGHT - HEIGHT)/2);

//设置窗口大小

this.setSize(WIDTH, HEIGHT);

//设置窗口布局

this.setLayout(getLayout());

//设置窗口可见

this.setVisible(true);

//设置窗口默认关闭方式

this.setDefaultCloseOperation(DISPOSE_ON_CLOSE);

public void paint(Graphics g){

double x,y,r; //横纵坐标及半径

Image image = this.createImage(WIDTH, HEIGHT);

Graphics pic = image.getGraphics();

//绘制图形

for (int i = 0; i < 100; i++)

for (int j = 0; j < 100; j++)

r = Math.PI / 45 + Math.PI / 45 * i * (1 - Math.sin(Math.PI / 45 * j)) * 18;

x = r * Math.cos(Math.PI / 45 * j) * Math.sin(Math.PI / 45 * i) + WIDTH / 2;

y = -r*Math.sin(Math.PI / 45 * j) + HEIGHT / 2;

pic.setColor(Color.MAGENTA);

pic.fillOval((int)x, (int)y, 2, 2);

//生成图片

g.drawImage(image,0,0,this);

public class CardioidDemo http://www.huiyi8.com/gundongdaima/
public static void main(String[] args){图片滚动代码

new Cardioid();