Question

如何用java3d画一个圆并填入颜色

搞定的给50分
要用Java3D实现的

Answer 1

那个本人初学java，还不知道java3d是什么啊！！！惭愧惭愧

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
public class Circle extends Applet implements ItemListener
{

Checkbox red,black,green,yellow;
Color co;
String colorname[]={"红色","黑色","绿色","黄色"};
Color color[]={Color.red,Color.black,Color.green,Color.yellow};

public void init()
{
CheckboxGroup cg=new CheckboxGroup();
co=Color.red;

red=new Checkbox(colorname[0],cg,true);
red.addItemListener(this);
add(red);
black=new Checkbox(colorname[1],cg,false);
black.addItemListener(this);
add(black);
green=new Checkbox(colorname[2],cg,false);
green.addItemListener(this);
add(green);
yellow=new Checkbox(colorname[3],cg,false);
yellow.addItemListener(this);
add(yellow);
}

public void itemStateChanged(ItemEvent e)
{
if(e.getSource()==red) co=Color.red;
if(e.getSource()==black) co=Color.black;
if(e.getSource()==green) co=Color.green;
if(e.getSource()==yellow) co=Color.yellow;
repaint();
}

public void paint(Graphics g)
{
int x=120,y=120,r=70;
g.setColor(co);
g.fillOval(x-r,y-r,2*r,2*r);

}
}