雷达时钟
这两天真是闲的蛋疼了，有事也不想做，哎……
- Java code
import java.awt.AlphaComposite;import java.awt.BasicStroke;import java.awt.Color;import java.awt.Dimension;import java.awt.Graphics;import java.awt.Graphics2D;import java.awt.RenderingHints;import java.awt.Toolkit;import java.awt.geom.Ellipse2D;import java.awt.image.BufferedImage;import java.util.Date;import javax.swing.JFrame;/** * 雷达表。 * @author Mars.CN * @homepage http://hi.baidu.com/2427 * */public class Radar extends JFrame implements Runnable{ private int pangle=0; //当前搜索角度 private int h_x=0 ,h_y=0 , h_p=360; private int m_x=0 ,m_y=0 , m_p=360; private int s_x=0 ,s_y=0 , s_p=360; private int centerX = 150; private int centerY = 150; private int r = 100;// 半径 public Radar() { setTitle("雷达时钟"); Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize(); setBounds((screenSize.width - 300) / 2, (screenSize.height - 300) / 2, 300, 300); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setResizable(false); setVisible(true); new Thread(this).start(); } public static void main(String[] args) { new Radar(); } @Override public void paint(Graphics gp) { BufferedImage img = new BufferedImage(300, 300, BufferedImage.TYPE_INT_RGB); Graphics2D g = (Graphics2D) img.getGraphics(); g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); // 画背景 g.setColor(new Color(42, 42, 42)); g.fillRect(0, 0, 300, 300); // 画圆 g.setStroke(new BasicStroke(5f)); Ellipse2D circle = new Ellipse2D.Double(); g.setColor(new Color(0, 255, 0)); circle.setFrameFromCenter(centerX, centerY, centerX + r, centerY + r); g.draw(circle); // 划十二分线 g.setStroke(new BasicStroke(1f)); g.setComposite(AlphaComposite .getInstance(AlphaComposite.SRC_ATOP, 0.1f)); // 开始 for (int i = 0; i < 12; i++) { double angle = Math.PI * (180 - 30 * i) / 180.0; int x = centerX - (int) (r * Math.cos(angle)); int y = centerY + (int) (r * Math.sin(angle)); g.drawLine(centerX, centerY, x, y); } circle.setFrameFromCenter(centerX, centerY, centerX + 20, centerY + 20); g.draw(circle); circle.setFrameFromCenter(centerX, centerY, centerX + 40, centerY + 40); g.draw(circle); circle.setFrameFromCenter(centerX, centerY, centerX + 60, centerY + 60); g.draw(circle); circle.setFrameFromCenter(centerX, centerY, centerX + 80, centerY + 80); g.draw(circle); g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER)); // 结束 g.setStroke(new BasicStroke(3f)); for(float i=0 ; i<90 ; i++){ g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, (i/90))); // 开始 double angle = Math.PI * (180 - (pangle + i)) / 180.0; int x = centerX - (int) (r * Math.cos(angle)); int y = centerY + (int) (r * Math.sin(angle)); g.drawLine(centerX, centerY, x, y); g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER)); // 结束 } int m_r=5; g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, (h_p*1.0f/360))); // 开始 circle.setFrameFromCenter(h_x, h_y, h_x+m_r, h_y+m_r ); g.fill(circle); g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER)); // 结束 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, (m_p*1.0f/360))); // 开始 circle.setFrameFromCenter(m_x, m_y, m_x+m_r, m_y+m_r ); g.fill(circle); g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER)); // 结束 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP, (s_p*1.0f/360))); // 开始 circle.setFrameFromCenter(s_x, s_y, s_x+m_r, s_y+m_r ); g.fill(circle); g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER)); // 结束 gp.drawImage(img, 0, 0, img.getWidth(),img.getHeight(),null); } @Override public void run() { while(true){ pangle += 1; if(pangle>360){ pangle=0; } //设置当前时间 Date now = new Date(); int h = now.getHours() % 12; int m = now.getMinutes(); int s = now.getSeconds(); double h_angle = Math.PI * (180 - (360/12)* h + 90 -(30*m/59)) / 180.0; double m_angle = Math.PI * (180 - (360/60)* m +90 -(6*s/59)) / 180.0; double s_angle = Math.PI * (180 - (360/60)* s +90) / 180.0; if(((360/12)* h-(6*s/59)+220) % 360 == pangle){ //如果小时的角度和当前扫描角度一样，小时的亮度为最高 360 h_x = centerX - (int)(40 * Math.cos(h_angle)); h_y = centerY + (int)(40 * Math.sin(h_angle)); h_p=360; } if(((360/60)* m-(6*s/59)+200) % 360==pangle){ m_x = centerX - (int)(60 * Math.cos(m_angle)); m_y = centerY + (int)(60 * Math.sin(m_angle)); m_p=360; } if(((360/60)* s+190) % 360 == pangle){ s_x = centerX - (int)(80 * Math.cos(s_angle)); s_y = centerY + (int)(80 * Math.sin(s_angle)); s_p=360; } h_p=h_p-1<0?0:h_p-1; m_p=m_p-1<0?0:m_p-1; s_p=s_p-1<0?0:s_p-1; try { Thread.sleep(10); } catch (InterruptedException e) { e.printStackTrace(); } repaint(); } }}
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lz真是蛋疼了，写了个效果不错的东东，收藏了。
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大家run下，还不错么
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好玩，哈哈
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看来你说的蛋疼是真的..
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mark一下
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顺便问下LZ， 这干嘛用的
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写的很好，收藏了
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效果不错
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看懂了,其中转得快的是秒针,离中心最近的是时针,然后依次是分针和秒针,不错呀
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不得不批评下,CPU占用率100%,占用率也忒高了
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挺有趣的一个程序。plague
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运行了下，雷达很cool，也很有创建，UI很漂亮，收藏了学习，hoho
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哪位把运行效果贴出来瞅瞅
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碗大个疤！？
LZ很猛啊。。
程序收藏 了。。