せいじょう - プログラム倉庫

import java.awt.*;
import java.awt.event.*;

class pro extends Frame {

public static void main(String [] args) {

       Frame f=[[new]] pro(); 
       f.setTitle("3D"); 
       f.setSize(700,700); 
       f.setBackground(Color.yellow); 
       f.setVisible(true); 
   } 

pro(){addWindowListener(new stopwin());}
class stopwin extends WindowAdapter{

   public void windowClosing(WindowEvent we){System.exit(0);} 
   } 

public void paint(Graphics g){
double x,y,z;
int px,py,pxs,pys;
int beginx,beginy,beginz,d;
int s1,s2,s3;
double theta,phi;

x=0;
y=0;
z=500;
px=pointx(x,y,z);
py=pointy(x,y,z);
g.drawLine(100,600,100+px,600-py);

x=500;
y=0;
z=0;
px=pointx(x,y,z);
py=pointy(x,y,z);
g.drawLine(100,600,100+px,600-py);

x=0;
y=500;
z=0;
px=pointx(x,y,z);
py=pointy(x,y,z);
g.drawLine(100,600,100+px,600-py);

for (s1=1;s1<20;s1++){
for (s2=1;s2<20;s2++){
for (s3=1;s3<20;s3++){

d=10;
beginx=100+d*s1;
beginy=100+d*s2;
beginz=100+d*s3;

x=beginx;
y=beginy;
z=beginz;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx+d;
y=beginy;
z=beginz;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx+d;
y=beginy;
z=beginz;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx+d;
y=beginy+d;
z=beginz;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx+d;
y=beginy+d;
z=beginz;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx;
y=beginy+d;
z=beginz;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx;
y=beginy+d;
z=beginz;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx;
y=beginy;
z=beginz;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx;
y=beginy;
z=beginz+d;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx+d;
y=beginy;
z=beginz+d;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx+d;
y=beginy;
z=beginz+d;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx+d;
y=beginy+d;
z=beginz+d;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx+d;
y=beginy+d;
z=beginz+d;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx;
y=beginy+d;
z=beginz+d;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx;
y=beginy+d;
z=beginz+d;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx;
y=beginy;
z=beginz+d;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx;
y=beginy;
z=beginz;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx;
y=beginy;
z=beginz+d;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx+d;
y=beginy;
z=beginz;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx+d;
y=beginy;
z=beginz+d;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx;
y=beginy+d;
z=beginz;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx;
y=beginy+d;
z=beginz+d;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

x=beginx+d;
y=beginy+d;
z=beginz;
px=pointx(x,y,z);
py=pointy(x,y,z);
x=beginx+d;
y=beginy+d;
z=beginz+d;
pxs=pointx(x,y,z);
pys=pointy(x,y,z);
g.setColor(Color.blue);
g.drawLine(100+px,600-py,100+pxs,600-pys);

}
}
}

}

public static int pointy(double x,double y,double z){
int p2;
double theta,phi;
theta=-0.222222*Math.PI;
phi=0.333333*Math.PI;
p2=(int)(-Math.cos(theta)*Math.cos(phi)*x-Math.sin(theta)*Math.cos(phi)*y+Math.sin(phi)*z);
return p2;
}

public static int pointx(double x,double y,double z){
int p1;
double theta;
theta=-0.222222*Math.PI;
p1=(int)(-Math.sin(theta)*x+Math.cos(theta)*y);
return p1;
}

}