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Index › Programming Questions & Help › Programs › Program of a model 3D of train
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Program of a model 3D of train (Read 459 times)
kazabandi
Program of a model 3D of train
Nov 13th, 2008, 2:13am  
I have a project to conduct a 3D model train and then allow the steering of the model from the network using the protocol osc.
Here is the beginning of my code, I want to know how to make a cylinder to represent the wheels of tran.
Thank you.

###################

int sval, x;

void setup()
{
size(600, 600, P3D);
noStroke();
}
void draw()
{
lights();
background(388);
pushMatrix();
translate(500, 300, 0);
box(60);
translate(-20, 0, 0);
box(30);
translate(-45, 0, 0);
box(60);
translate(-20, 0, 0);
box(30);
translate(-45, 0, 0);
box(60);
translate(-20, 0, 0);
box(30);
translate(-45, 0, 0);
box(60);
translate(-20, 0, 0);
box(30);
translate(-45, 0, 0);
box(60);
translate(0, -20, 0);
box(30,80,30);
popMatrix();
sval+=1;
}

###################
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antiplastik
Re: Program of a model 3D of train
Reply #1 - Nov 13th, 2008, 11:51pm  
The search field is a good start.

http://processing.org/hacks/hacks:cylinder?s=cylinder
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WWW  
kazabandi
Re: Program of a model 3D of train
Reply #2 - Nov 30th, 2008, 2:05pm  
Thank you for your help.
Now, I'm looking how to do the circuit of the train, I thought of making circles or curves, but I think it can not give good results, someone can give me an idea to make the circuit?

%%%%%%
int sval;
float x;
void setup()
{
 

size(800, 600, P3D);
noStroke();


}
void draw(){

lights();
background(388);

train();
roue();
circuit();


sval+=1;
}

void train(){
color c1 = color(288, 333, 0);
translate(700,300,0);  

fill(c1);
box(50);
translate(-20, 0,0 );
box(40,20,30);
translate(-45, 0, 0);
box(50);
translate(-20, 0,0 );
box(40,20,30);
translate(-45, 0, 0);
box(50);
translate(-20, 0,0 );
box(40,20,30);
translate(-45, 0, 0);
box(50);
translate(-20, 0,0 );
box(40,20,30);
translate(-45, 0, 0);
box(50);
translate(0, -38,0 );
box(25,25,15);

}

void roue(){
translate(0,73,15);
pushMatrix();
rotateZ(PI/2);
rotateX(PI/2);
color c1 = color(204, 22, 0);
fill(c1);

pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,-30,0);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,-65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,-65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,-65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,-65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
translate(0,0,-65);
pushMatrix();
rotateY(sval*0.01);
cylinder(10,10,15);
popMatrix();
popMatrix();
}

void circuit(){
 

}

void cylinder(float w, float h, int sides)
{
 float angle;
 float[] x = new float[sides+1];
 float[] z = new float[sides+1];

 //get the x and z position on a circle for all the sides
 for(int i=0; i < x.length; i++){
   angle = TWO_PI / (sides) * i;
   x[i] = sin(angle) * w;
   z[i] = cos(angle) * w;
 }

 //draw the top of the cylinder
 beginShape(TRIANGLE_FAN);
 
 vertex(0,   -h/2,    0);

 for(int i=0; i < x.length; i++){
   vertex(x[i], -h/2, z[i]);
 }

 endShape();

 //draw the center of the cylinder
 beginShape(QUAD_STRIP);

 for(int i=0; i < x.length; i++){
   vertex(x[i], -h/2, z[i]);
   vertex(x[i], h/2, z[i]);
 }

 endShape();
 
 //draw the bottom of the cylinder
 beginShape(TRIANGLE_FAN);
 
 vertex(0,   h/2,    0);

 for(int i=0; i < x.length; i++){
   vertex(x[i], h/2, z[i]);
 }

 endShape();
}

%%
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kazabandi
Re: Program of a model 3D of train
Reply #3 - Dec 26th, 2008, 11:45am  
I finished the design part of the train, now I want to use the protcole OSC as a remote control, I want to have a small example using the OSC and apply it to my example. Here is my code:

int sval,sval1, sval2,sval3,test, cnd=0, cnd1=0, cnd2=0, cnd3=0,cnd4=0,cnd5=0;
float x;

void setup()
{
size(1250, 600, P3D);
noStroke();
}
void draw(){
 lights();
background(22,111,303);
perspective();


if (keyPressed){
 if (key=='q')  {cnd2=1;cnd3=0;}
 if (key=='s')  {cnd2=0;cnd3=1;}
 if (key == 'd')  {cnd2=0;cnd3=0;}
 }
if (cnd2==1 && cnd3==0) sval2+=1;
rotateX(sval2*0.003);  

if (cnd2==0 && cnd3==1) sval3+=1;
rotateX(-sval3*0.003);  
plan();
circuit();

if (keyPressed)
 {
   if (key == 'a')  cnd=0;
   if (key == 'z' && cnd1!=1 ) {cnd=1;cnd1=0;  }  
  if (key == 'a' ) {cnd1=0;cnd4=0;cnd5=0;}  
  if (key == 'e' && cnd!=1 ) {cnd1=1;cnd=0; }
  if (key == 'r' ) {cnd4=1;cnd5=0;}
  if (key == 't' ) {cnd5=1;cnd4=0;}
 
       
 }
if ((cnd==1 && cnd1==0)|(cnd==1 && cnd1==0 && cnd5==1)) sval+=1;
if (cnd==1 && cnd1==0 && cnd4==1) sval+=2;

rotate(sval*0.01);

if ((cnd1==1 && cnd==0)|(cnd1==1 && cnd==0 && cnd5==1)) sval1+=1;
if (cnd1==1 && cnd==0 && cnd4==1) sval1+=2;
rotate(-sval1*0.01);



 

trainpartie1();
trainpartie2();
trainpartie3();
roue();


}

void plan(){
 pushMatrix();
 noStroke();

 rotateX(PI/4);
  translate(630,0,-198);
 fill(11,330,44);
 box(850,850,20);
 
 
 translate(-330,370,60);
 rotateX(PI/2);
 fill(#8B4513);
 cylinder(10,100,300);
 translate(0,40,0);
   fill(11,130,44);
 sphere(40);
 translate(640,0,0);
 sphere(40);
 translate(0,-40,0);
 fill(#8B4513);
 cylinder(10,100,300);
 translate(0,0,680);
 cylinder(10,100,300);
 translate(0,40,0);
   fill(11,130,44);
 sphere(40);
 translate(-640,0,0);
 sphere(40);
 translate(0,-40,0);
 fill(#8B4513);
 cylinder(10,100,300);
 popMatrix();
 
 }
 
 void circuit(){
   translate(670,280,15);
 rotateX(PI/4);
 translate(-40,-180,0);
 noFill();
stroke(0);
ellipse(0, 0, 760, 760);
ellipse(0, 0, 740, 740);
ellipse(0, 0, 710, 710);
ellipse(0, 0, 690, 690);

for (int i = 0; i < 63;  i++)
{
 
rotate( 0.05);
fill(0);
rect(0,355, 5, 15);
rotateZ(PI);
rect(0,355, 5, 15);
}
}

void trainpartie1(){
 
 pushMatrix();
 noStroke();
 fill(#FF0000);
 
translate(0,360,45);
 box(50);



popMatrix();
rotate(0.2);
pushMatrix();
 noStroke();
 fill(#FF4500);
 
translate(0,360,45);
 box(50);



popMatrix();

rotate(0.2);
pushMatrix();
 noStroke();
 fill(#1E90FF);
 
translate(0,360,45);
 box(50);



popMatrix();

rotate(0.2);
pushMatrix();
 noStroke();
 fill(#FFFF00);
 
translate(0,360,45);
 box(50);



popMatrix();

rotate(0.2);
pushMatrix();
 noStroke();
 fill(#4B0082);
 
translate(0,360,45);
 box(50);



popMatrix();
 }
 
 void trainpartie2(){
   rotate(-1);
   for (int i = 0; i < 4;  i++)
{
  rotate(0.2);
   pushMatrix();
 noStroke();
 fill(#000000);
translate(-40,360,45);
box(40,20,30);
popMatrix();
}
}

void trainpartie3(){
rotate(0.2);
pushMatrix();
noStroke();
fill(#FFA500);
translate(0,360,85);
box(25,25,30);
popMatrix();

rotate(-0.8);
pushMatrix();
noStroke();
fill(#FFA500);
translate(0,360,85);
box(25,25,30);
popMatrix();
 }

void roue(){
 rotate(-0.2);
 
 test+=1;
 for (int i = 0; i < 5;  i++)
{
  rotate(0.2);
 pushMatrix();
 fill(#C0C0C0);

translate(0,350,10);


rotateY(sval*0.1);
rotateY(-sval1*0.1);


cylinder(10,10,15);
translate(0,25,0);
cylinder(10,10,15);
popMatrix();
 
 }
 }
 


void cylinder(float w, float h, int sides)
{
 float angle;
 float[] x = new float[sides+1];
 float[] z = new float[sides+1];

 //get the x and z position on a circle for all the sides
 for(int i=0; i < x.length; i++){
   angle = TWO_PI / (sides) * i;
   x[i] = sin(angle) * w;
   z[i] = cos(angle) * w;
 }

 //draw the top of the cylinder
 beginShape(TRIANGLE_FAN);
 
 vertex(0,   -h/2,    0);

 for(int i=0; i < x.length; i++){
   vertex(x[i], -h/2, z[i]);
 }

 endShape();

 //draw the center of the cylinder
 beginShape(QUAD_STRIP);

 for(int i=0; i < x.length; i++){
   vertex(x[i], -h/2, z[i]);
   vertex(x[i], h/2, z[i]);
 }

 endShape();
 
 //draw the bottom of the cylinder
 beginShape(TRIANGLE_FAN);
 
 vertex(0,   h/2,    0);

 for(int i=0; i < x.length; i++){
   vertex(x[i], h/2, z[i]);
 }

 endShape();
}

 
 void perspective() {
 lights();
 
 float cameraY = height/2.0;
 float fov = mouseX/float(width) * PI/2;
 float cameraZ = cameraY / tan(fov / 2.0);
 float aspect = float(width)/float(height);
 
 perspective(fov, aspect, cameraZ/10.0, cameraZ*10.0);
 
 
 
}
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