afen311
发贴: 9
积分: 0
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于 2005-03-11 14:19
import java.awt.*; import java.awt.geom.*; import javax.swing.*;
public class Map extends JFrame{ public Map(){ super("Map"); setSize(350,350); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); MapPane map=new MapPane(); Container content=getContentPane(); content.add(map); setVisible(true); } }
class MapPane extends JPanel{
public void paintComponent(Graphics comp){ Graphics2D comp2D=(Graphics2D)comp; comp2D.setColor(Color.blue); Rectangle2D.Float background=new Rectangle2D.Float(0F,0F,(float)getSize().width,(float)getSize().height); comp2D.fill(background); //Draw waves comp2D.setColor(Color.white); BasicStroke pen=new BasicStroke(2F,BasicStroke.CAP_BUTT,BasicStroke.JOIN_ROUND); comp2D.setStroke(pen); for(int ax=0;ax<340;ax+=10) for(int ay=0;ay<340;ay+=10){ Arc2D.Float wave=new Arc2D.Float(ax,ay,10,10,0,-180,Arc2D.OPEN); comp2D.draw(wave); } //Draw Florida GradientPaint gp=new GradientPaint(0F,0F,Color.green,350F,350F,Color.orange,true); comp2D.setPaint(gp); GeneralPath f1=new GeneralPath(); f1.moveTo(10F,12F); f1.lineTo(234F,12F); f1.lineTo(253F,25F); f1.lineTo(261F,71F); f1.lineTo(344F,209F); f1.lineTo(336F,278F); f1.lineTo(295F,310F); f1.lineTo(259F,274F); f1.lineTo(205F,188F); f1.lineTo(211F,171F); f1.lineTo(195F,174F); f1.lineTo(191F,118F); f1.lineTo(120F,50F); f1.lineTo(94F,68F); f1.lineTo(81F,49F); f1.lineTo(12F,37F); f1.closePath(); comp2D.fill(f1); //Daw ovals comp2D.setColor(Color.black); BasicStroke pen2=new BasicStroke(); comp2D.setStroke(pen2); Ellipse2D.Float e1=new Ellipse2D.Float(23,40,15,15); Ellipse2D.Float e2=new Ellipse2D.Float(225,130,15,15); Ellipse2D.Float e3=new Ellipse2D.Float(245,130,15,15); comp2D.fill(e1); comp2D.fill(e2); comp2D.fill(e3); } } 以上代码运行正常,为什么不能出现预计的画图效果呢?请大家赐教,先行谢过了!
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