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package rzy0705a;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class DrawListener implements ActionListener {
//谢宾斯基三角形
public void draw(double x11,double y11,double x22,double y22,double x33,double y33,int con) {
con--;
if(con<1){return;}
int x1,x2,x3,y1,y2,y3;
x1=(int)x11;
x2=(int)x22;
x3=(int)x33;
y1=(int)y11;
y2=(int)y22;
y3=(int)y33;
g.drawLine(x1,y1,x2,y2);
g.drawLine(x2,y2,x3,y3);
g.drawLine(x1, y1, x3, y3);
double x13=(x11+x33)/2;
double x23=(x22+x33)/2;
double x12=(x11+x22)/2;
double y13=(y11+y33)/2;
double y23=(y22+y33)/2;
double y12=(y11+y22)/2;
draw(x11,y11,x12,y12,x13,y13,con);
draw(x12,y12,x22,y22,x23,y23,con);
draw(x13,y13,x23,y23,x33,y33,con);
}
//谢宾斯基地毯
public void drawF(double a,double b,double w,double h,int con){
con--;
if(con<1){return;}
g.setColor(Color.green);
g.fillRect((int)(a+w/9),(int)(b+h/9),(int)(w/9),(int)(h/9));
g.fillRect((int)(a+w*4/9),(int)(b+h/9),(int)(w/9),(int)(h/9));
g.fillRect((int)(a+w*7/9),(int)(b+h/9),(int)(w/9),(int)(h/9));
g.fillRect((int)(a+w/9),(int)(b+h*4/9),(int)(w/9),(int)(h/9));
g.fillRect((int)(a+w*7/9),(int)(b+h*4/9),(int)(w/9),(int)(h/9));
g.fillRect((int)(a+w/9),(int)(b+h*7/9),(int)(w/9),(int)(h/9));
g.fillRect((int)(a+w*4/9),(int)(b+h*7/9),(int)(w/9),(int)(h/9));
g.fillRect((int)(a+w*7/9),(int)(b+h*7/9),(int)(w/9),(int)(h/9));
drawF(a, b, w/3, h/
3,con);
drawF(a+w/3, b, w/3, h/3,con);
drawF(a+2*w/3, b, w/3, h/3,con);
drawF(a, b+h/3, w/3, h/3,con);
drawF(a+2*w/3, b+h/3, w/3, h/3,con);
drawF(a, b+2*h/3, w/3, h/3,con);
drawF(a+w/3, b+2*h/3, w/3, h/3,con);
drawF(a+2*w/3, b+2*h/3, w/3, h/3,con);
}
private Graphics g;
public DrawListener(Graphics g){this.g=g;}
//重写抽象方法
public void actionPerformed(ActionEvent e) {
g.clearRect(0,0,2000,1000);
//画分形
if(e.getActionCommand()=="分形1")
{int a=-2,b=-2,d=2;
double c=-1.2;
double x=150,y=150;
for(int i=0;i<50000;i++){
double x2=Math.sin(a*y)-Math.cos(b*x);
double y2=Math.sin(c*x)-Math.cos(d*y);
int f=(int)(x2*100)+250;
int h=(int)(y2*120)+300;
Color cl=new Color(i%256,0,0);
g.setColor(cl);
g.drawLine(f,h,f,h);
x=x2;
y=y2;
}}
if(e.getActionCommand()=="分形2"){
//double a=1.40,b=1.56,c=1.40,d=-6.56;
double a=1.40,b=1.56,c=4,d=4;
double x=0,y=0;
for(int i=0;i<100000;i++){
double x2=d*Math.sin(a*x)-Math.sin(b*y);
double y2=c*Math.cos(a*x)+Math.cos(b*y);
int f=(int)(x2*50)+850;
int h=(int)(y2*50)+350;
Color cl=new Color(0,i%256,i%256);
g.setColor(cl);
g.drawLine(f,h,f,h);
x=x2;
y=y2;}
}
if(e.getActionCommand().equals("嵌套矩形")){
for(int i=0;i<35;i++){
if(i>=15&&i<=25){
g.setColor(Color.green);
g.drawRect(700-10*i,380-10*i,10+20*i, 10+20*i);}
else if(i>25){g.setColor(Color.orange);
g.drawRect(700-10*i,380-10*i,10+20*i, 10+20*i);}
else{g.setColor(Color.red);
g.drawRect(700-10*i,380-10*i,10+20*i, 10+20*i);}
}
}
if(e.getActionCommand().equals("嵌套圆")){
for(int i=0;i<46;i++){if(i>=15&&i<=25){
g.setColor(Color.green);
g.drawOval(700-10*i,380-10*i,10+20*i, 10+20*i);}
else if(i<15){g.setColor(Color.red);
g.drawOval(700-10*i,380-10*i,10+20*i, 10+20*i);}
else if(i>=25&&i<35){g.setColor(Color.blue);
g.drawOval(700-10*i,380-10*i,10+20*i, 10+20*i);}
else if(i>=35&&i<=45){g.setColor(Color.orange);
g.drawOval(700-10*i,380-10*i,10+20*i, 10+20*i);}
}
}
if(e.getActionCommand().equals("谢宾斯基三角形")){
draw(0,600,600,600,300,600-300*Math.sqrt(3),12);
}
if(e.getActionCommand().equals("分形3")){
double x,y,nextx,nexty;
x=0;y=0;
double a=1,b=4,c=60;
for(int i=0;i<1000000;i++){
nextx=y-Math.signum(x)*Math.sqrt(Math.abs(b*x-c));
nexty=a-x;
int m=(int)(x*1)+400;
int n=(int)(y*1)+400;
g.setColor(Color.blue);
g.drawLine(m, n, m, n);
x=nextx;
y=nexty;
}
}
if(e.getActionCommand().equals("分形4")){
double x,y,nextx,nexty;
x=0;y=0;
double a=0.4,b=1,c=0;
for(int i=0;i<1000000;i++){
nextx=y-Math.signum(x)*Math.sqrt(Math.abs(b*x-c));
nexty=a-x;
int m=(int)(x*100)+400;
int n=(int)(y*100)+400;
g.setColor(Color.blue);
g.drawLine(m, n, m, n);
x=nextx;
y=nexty;
}
}
if(e.getActionCommand().equals("分形5")){
double x,y,nextx,nexty;
x=0;y=0;
double a=-1,b=-2,c=-3;
for(int i=0;i<1000000;i++){
nextx=y-Math.signum(x)*Math.sqrt(Math.abs(b*x-c));
nexty=a-x;
int m=(int)(x*10)+400;
int n=(int)(y*10)+400;
g.setColor(Color.blue);
g.drawLine(m, n, m, n);
x=nextx;
y=nexty;
}
}
if(e.getActionCommand().equals("分形6")){
//System.out.println("try");
double x1,y1,nextx1,nexty1;
x1=0;y1=0;
double a1=-1000,b1=0.1,c1=-10;
for(int i=0;i<100000000;i++){
nextx1=y1-Math.signum(x1)*Math.sqrt(Math.abs(b1*x1-c1));
nexty1=a1-x1;
int m=(int)(x1*30)+300;
int n=(int)(y1*30)+300;
g.setColor(Color.blue);
g.drawLine(m, n, m, n);
x1=nextx1;
y1=nexty1;
}
}
if(e.getActionCommand().equals("谢宾斯基矩形")){
g.setColor(Color.black);
g.fillRect(100,100,600,600);
g.setColor(Color.green);
g.fillRect(300,300,200,200);
drawF(100,100,600,600,6);
}
}
}
package rzy0705a;
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Graphics;
import java.awt.event.ActionListener;
import java.awt.event.MouseMotionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
//定义类DrawBord，继承自JFrame
public class DrawBord extends JFrame{
/**
* 入口主函数
*/
public static void main(String[] args) {
//实例化DrawBord，创建对象
DrawBord db=new DrawBord();
//定义显示方法
db.initUI();
}
public Graphics g;
public void initUI(){
//设置属性
this.setTitle("分形");
this.setSize(800, 800);
this.setLocationRelativeTo(null);
this.setDefaultCloseOperation(3);
this.setLayout(new FlowLayout());
this.setResizable(true);
this.setVisible(true);
JButton jb=new JButton("分形1");
this.add(jb);
JButton jb1=new JButton("分形2");
this.add(jb1);
JButton jb2=new JButton("嵌套矩形");
this.add(jb2);
JButton jb4=new JButton("嵌套圆");
this.add(jb4);
JButton jb5=new JButton("谢宾斯基三角形");
this.add(jb5);
JButton jb6=new JButton("分形3");
this.add(jb6);
JButton jb7=new JButton("分形4");
this.add(jb7);
JButton jb8=new JButton("分形5");
this.add(jb8);
JButton jb9=new JButton("分形6");
this.add(jb9);
JButton jb10=new JButton("谢宾斯基矩形");
this.add(jb10);
g=this.getGraphics();
//实例化对象
ActionListener al=new DrawListener(g);
jb.addActionListener(al);
jb1.addActionListener(al);
jb2.addActionListener(al);
jb4.addActionListener(al);
jb5.addActionListener(al);
jb6.addActionListener(al);
jb7.addActionListener(al);
jb8.addActionListener(al);
jb9.addActionListener(al);
jb10.addActionListener(al);
MouseMotionListener m=new MouseListen(g);
this.addMouseMotionListener(m);
}
}
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