Hello, I created a small program that visualize data loaded from a CSV file, I'm trying to create a switch that skips from one CSV file to another as the mouse clicks. How can I get it to work?


int numBalls = 200;
float spring = 0.008;
float friction =0.1;

boolean sw;
String[]lines;
Record[]records;
int recordCount;


PFont font;

Ball[] balls = new Ball[numBalls];
Att[] att = new Att[numBalls];

void setup() {

 size(screen.width, screen.height);

 noStroke();
 smooth();
 sw=true;
 font = loadFont("Monospaced-12.vlw");

 for (int i = 0; i < numBalls; i++) {
   balls[i] = new Ball(random(width), random(height), 0, balls);
   att[i]=new Att();
 }

 for (int i = 0; i < numBalls; i++) {
   att[i].init();
 }

 lines=loadStrings("2009.csv");

 records=new Record[lines.length];

 for(int i=0; i < lines.length; i++){
   String[] pieces = split(lines[i], ';');
   if (pieces.length==2){
     records[recordCount]= new Record(pieces);
     recordCount++;

   }
 }

}

void draw() {
 background(242,255,229);

 mouseOver();



 if(sw==true){
   lines = loadStrings("2008.csv");
   //println(sw);
 }

 else{
   lines = loadStrings("2009.csv");
   //println(sw);
 }


 for(int i=0; i < recordCount; i++){
   balls[i].pos=i+1;
   balls[i].diameter=sqrt(records[i].val)*0.2;
   balls[i].name=records[i].name;
   //balls[i].dim=lines[i];
   att[i].k=(records[i].val)*0.000006;

 }

 for (int i = 0; i < numBalls; i++) {
   balls[i].move();
   balls[i].display();
   // att[i].render();
   att[i].update();

   float dx=(balls[i].x-att[i].x);
   float dy=(balls[i].y-att[i].y);
   float d=dist(balls[i].x,balls[i].y,att[i].x,att[i].y);

   if(d<1){
     balls[i].kx=0;
     balls[i].ky=0;

     balls[i].x=att[i].x;
     balls[i].y=att[i].y;

   }
   else{

     balls[i].kx=(-dx/(d))*100;
     balls[i].ky=(-dy/(d))*100;

   }


 }

}


class Ball {
 float x, y;
 float diameter;
 float vx = 0;
 float vy = 0;
 int id;
 String name;
 int pos;
 Ball[] others;
 float alp=40;
 float kx,ky;
 boolean over=false;
 Ball(float xin, float yin, float din, Ball[] oin) {
   x = xin;
   y = yin;
   diameter = din;
   others = oin;

 }


 void move() {

   x += vx+kx/100;
   y += vy+ky/100;

 }
 void name(){

   textFont (font);



   float tw= textWidth(name+pos);
   float th= textAscent();
   noStroke();
   fill(255);
   rect(x-10+diameter,y+diameter-th-5,tw+30,th+10);
   fill(0, 102, 153);
   text(pos+"°"+" "+name,x+diameter,y+diameter);

 }
 void display() {
   if(over==false){

     noStroke();
     fill(106,22,61,220);
     ellipse(x, y, diameter, diameter);
     over=true;

   }

   else{

     noStroke();
     fill(106,22,61,30);
     ellipse(x, y, diameter, diameter);
     noFill();
     stroke(0);
     strokeWeight(0.4);
     ellipse(width/2,height/2,dist(x,y,width/2,height/2)*2,dist(x,y,width/2,height/2)
*2);
     over=false;
   }

 }


}

class Att{
 float x;
 float y;
 float a;
 float k;
 float molt =0.000001;
 void init(){
   a=random(0,10);
 }
 void update(){
   a+=(1/k)*molt;
   x=sin(a)*(1/k)+width/2;
   y=cos(a)*(1/k)+height/2;
 }

 void render(){
   stroke(255);
   strokeWeight(1);
   point (x,y);
 }
}


class Record{
 String name;
 float val;

 public Record(String[] pieces){
   name = pieces[0];
   val = float(pieces[1]);
 }
}

void mouseOver(){
 for (int i = 0; i < numBalls; i++) {
   if(mouseX<=(balls[i].x+(balls[i].diameter)/2) && mouseX>=(balls[i].x-(balls[i].diameter)/2) && mouseY>=(balls[i].y-(balls[i].diameter)/2) && mouseY<=(balls[i].y+(balls[i].diameter)/2)){


     balls[i].name();
     balls[i].over=true;
     att[i].molt=0;


   }
   else{
     balls[i].over=false;
     att[i].molt=0.000001;

   }


 }
}


void mousePressed(){
 if (sw==true){
   sw=false;
 }

 else{
   sw=true;
 }  
}

I see, the problem is that the "for" is situated in the "setup". So i guess that it loads once the TXT and stop, even if after i activate the switch it doesn't reload it. I tried to move the "for" in the "draw" but like that it crashes. I'm not that good  and i can't really figure out how to solve this issue.

Thanks

Lorenzo

Yeah, that's the loop.
the CSV is something like this:

FERRERO P & C SPA ALBA CUNEO;15299
WIND TELECOMUNIC.SPA ROMA;14153
VOLKSWAGEN GROUP IT.SPA VERONA;10613
…

mmm... as you can probably tell i took the code somewhere else but i can't fit it for what i need.
Thanks for the help

I know that I'm annoying but i can't get it to work! What i originally wanted to do was to parse the CSV file and separate the names from the value as you can see in the above portion of the CSV. I took the code from the Ben Fry, Casey Reas Processing book. Plus i tried to add the switch but i can't get it to work. I copied the for loop in the void mousePressed but it gives me the error:

Exception in thread "Animation Thread" java.lang.ArrayIndexOutOfBoundsException: 200

If you know how to solve the error it would be great!
thanks again
Lorenzo

great, thats what i ment