运用Polygon类绘制六边形

来源：互联网发布：docker安装windows 10 编辑：程序博客网时间：2024/05/29 17:58

import javax.swing.JPanel;import java.awt.Graphics;import java.awt.Polygon;public class PolygonsPanel extends JPanel {protected void paintComponent(Graphics g){super.paintComponent(g);int xCenter=getWidth()/2;int yCenter=getHeight()/2;int radius=(int)(Math.min(getWidth(), getHeight()*0.4));Polygon polygon=new Polygon();polygon.addPoint(xCenter+radius,yCenter);polygon.addPoint((int)(xCenter+radius*Math.cos(2*Math.PI/6)), (int)(yCenter-radius*Math.sin(2*Math.PI/6)));polygon.addPoint((int)(xCenter+radius*Math.cos(2*2*Math.PI/6)),(int)(yCenter-radius*Math.sin(2*2*Math.PI/6)));polygon.addPoint((int)(xCenter+radius*Math.cos(2*3*Math.PI/6)),(int)(yCenter-radius*Math.sin(2*3*Math.PI/6)));polygon.addPoint((int)(xCenter+radius*Math.cos(2*4*Math.PI/6)),(int)(yCenter-radius*Math.sin(2*4*Math.PI/6)));polygon.addPoint((int)(xCenter+radius*Math.cos(2*5*Math.PI/6)),(int)(yCenter-radius*Math.sin(2*5*Math.PI/6)));g.drawPolygon(polygon);}}

import javax.swing.JFrame;import javax.swing.JPanel;import java.awt.Graphics;import java.awt.Polygon;public class DrawPolygon extends JFrame{public DrawPolygon(){setTitle("DrawPolygon");add(new PolygonsPanel());}public static void main(String[] args){DrawPolygon frame =new DrawPolygon();frame.setSize(200,250);frame.setLocationRelativeTo(null);frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.setVisible(true);}}

0 0