周末用swing绘制了一只直升机 对swing的的绘制技术有些总结： 1.图形基于坐标系定位 坐标原点位于左上角 分别向右（x轴） 向下（y轴）递增 2.图形按像素组成 3.重写Jcomponent的paint方法 其中的Graphics g 对象相当于画笔 4.对于特别复杂的图形无法绘制 可以用g.drawImage载入 但比较消耗资源 5.擅用g.drawArc、g.fillPloygon、g.drawPloyline 这三个函数可以画出比较复杂的图形 感觉swing对图型图像的处理相对较弱，在开发比较痛苦 Plane.java的源代码如下 [code lang="java"] import java.awt.Color; import java.awt.Graphics; import javax.swing.JFrame; import javax.swing.JPanel; public class Plane extends JFrame{ public Plane(){ this.setSize(400,300); this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); this.setVisible(true); } public static void main(String[] args) { Plane frame = new Plane(); Panel panel = new Panel(); frame.add(panel); } } class Panel extends JPanel { public void paint(Graphics g) { super.paint(g); //着色 //后浆 g.setColor(Color.CYAN); g.fillOval((15-12),(31-12),12*2,12*2); //前桨 g.fillPolygon(new int[]{62,63,65,69,77,93,108}, new int[]{11,10,9,8,7,6,6}, 7); g.fillPolygon(new int[]{62,77,93,101,105,107,108}, new int[]{11,10,9,8,7,6,6}, 7); g.fillPolygon(new int[]{112,113,115,119,127,143,158}, new int[]{6,5,4,3,2,1,1}, 7); g.fillPolygon(new int[]{112,127,143,151,155,157,158}, new int[]{6,5,4,3,2,1,1}, 7); //飞机躯干 g.setColor(Color.GREEN); g.fillPolygon( new int[] { 158, 147, 139, 124, 120, 92, 76, 50,46,37,41, 14, 15, 75, 89, 142}, new int[] { 43, 34, 27, 23, 19, 19, 26, 28,25,25,28, 29, 33, 39, 51, 51}, 16); g.fillArc(89+20, 52-(52-43)*2, (158-89)-20, (52-43)*2, 0, -70); //机身 g.setColor(Color.GRAY); g.fillPolygon(new int[]{87,123,124,74}, new int[]{22,22,24,26}, 4); g.fillArc(131-10, 38-(44-38), 10, (44-38)*2, 0, -90); g.fillPolygon(new int[]{74,81,131-10/2,131,124}, new int[]{26,44,44,38,24}, 5); g.fillPolygon(new int[]{54,45,37,46}, new int[]{31,31,25,25}, 4); //尾翼 g.fillPolygon(new int[]{24,17,14,13}, new int[]{28,21,21,28}, 4); g.fillArc(13,19,4,4,160,-180); //前桨 g.setColor(Color.RED); g.fillPolygon(new int[]{112,112,108,108}, new int[]{19,10,10,19}, 4); g.fillOval(108, (10-4), 4, 4); //飞机窗口 g.setColor(Color.BLACK); g.fillPolygon(new int[]{147,133,128,139}, new int[]{34,34,25,27}, 4); g.fillPolygon(new int[]{87,123,120,92}, new int[]{22,22,19,19}, 4); g.fillPolygon(new int[]{129,120,116,124}, new int[]{35,35,26,24}, 4); g.fillPolygon(new int[]{113,117,108,102}, new int[]{26,35,35,26}, 4); //飞机躯干 g.drawPolyline( new int[] { 158, 147, 139, 124, 120, 92, 76, 50,46,37,41, 14, 15, 75,89 ,142}, new int[] { 43, 34, 27, 23, 19, 19, 26, 28,25,25,28, 29, 33, 39, 51,51}, 16); g.drawArc(89+20, 52-(52-43)*2, (158-89)-20, (52-43)*2, 0, -70); //飞机头部 g.drawPolyline(new int[]{147,133,128}, new int[]{34,34,25}, 3); //飞机机身 g.drawPolyline(new int[]{87,123}, new int[]{22,22}, 2); g.drawPolyline(new int[]{74,124,131}, new int[]{26,24,38}, 3); g.drawArc(131-10, 38-(44-38), 10, (44-38)*2, 0, -90); g.drawPolyline(new int[]{74,81,131-10/2}, new int[]{26,44,44}, 3); g.drawPolyline(new int[]{129,120,116}, new int[]{35,35,26}, 3); g.drawPolyline(new int[]{113,117,108,102}, new int[]{26,35,35,26}, 4); g.drawPolygon(new int[]{54,45,37,46}, new int[]{31,31,25,25}, 4); g.drawLine(99, 26, 106, 44); g.drawLine(99, 32, 101, 32); g.drawLine(102, 39, 104, 39); //飞机前桨 g.drawPolyline(new int[]{112,112,108,108}, new int[]{19,10,10,19}, 4); g.drawOval(108, (10-4), 4, 4); g.drawArc(108-(108-62)*2, 6-5, (108-62)*2, 5*2, 0, -90); g.drawArc(108-(108-62), 6, (108-62)*2, 5*2, 180, -90); g.drawArc(112-(108-62), 6-5*2, (108-62)*2, 5*2, 0, -90); g.drawArc(112, 6-5, (108-62)*2, 5*2, 180, -90); //飞机后浆 计算正切圆的切点坐标及外接正方形的起点坐标 g.drawPolyline(new int[]{24,17}, new int[]{28,21}, 2); g.drawPolyline(new int[]{13,14}, new int[]{21,28},2); g.drawArc(13,19,4,4,160,-180); g.drawOval((15-12),(31-12),12*2,12*2); g.drawArc((15-8),(31-8),8*2,8*2,20,120); g.drawArc((15-8),(31-8),8*2,8*2,-20,-50); g.drawArc((15-8),(31-8),8*2,8*2,-90,-100); //飞机底座 g.drawArc(108,51,16,16,0,90); g.drawArc(130,51,16,16,20,90); g.drawArc(55,(51-8+6),100,(16-6),-20,-70); } } [/code] 效果：