Problem with a csv file in Processing

tomvandijk

Hello all, I am a Processing rookie so maybe its a simple fault but my processing code does read my csv file, but doesnt draw anything like it does when i put it in regular arrays. my code:

    Table table;

     String land [] = {};//"Luxemburg","Noorwegen","Qatar","Zwitserland","Denemarken","Ierland","Nederland","Verenigde    Arabische Emiraten","Verenigde Staten","Oostenrijk","Australië","Finland","Zweden"
     float bbp []   = {};//104.5,79.1,68.9,67.6,56.1,51.4,48.2,46.9,46.4,46.0,45.6,44.5,44.0
     int nr []      = {};//13,12,11,10,9,8,7,6,5,4,3,2,1

     float r = random(250);

  void setup (){
  table = loadTable("data.csv" ,"header");

   for (TableRow row : table.rows()) {

   append(land, row.getString("land"));
   append(bbp, row.getFloat("bbp"));
   append(nr, row.getInt("nr"));
   println(land.length);

  size(2000,600);
  background(240);
  smooth();
  stroke(50,50,50,50);
  strokeWeight(2);

}
}

void draw (){
background(240);
line(0, height/2, width, height/2);
for(int i=0; i< nr.length;i++){
       float c = nr[i]*12;
fill(250, c,c,200);
ellipse(nr[i]*110 -20 , height/2, bbp[i]*3, bbp[i]*3);
fill(30);

pushMatrix();
translate(nr[i]*110 -20, height/2 - bbp[i]/2);
rotate(radians(-45));
text(land[i],-50 ,50);
text(bbp[i],10,10);
textSize(18);
popMatrix();

text("BBP per land plaats 1t/m13",10 ,height/3);
text("Bron: https://nl.wikipedia.org/wiki/Lijst_van_landen_naar_bbp_per_hoofd_van_de_bevolking", height/2, width/4);
smooth();
 }
 }

My csv:

land,bbp,nr
Luxemburg,104.5,1
Noorwegen,79.1,2
Qatar,68.9,3
Zwitserland,67.6,4
Denemarken,56.1,5
Ierland,51.4,6
Nederland,48.2,7
Verenigde Arabische Emiraten,46.9,8
Verenigde Staten, 46.4,9
Oostenrijk,46.0,10
Australië,45.6,11
Finland,44.5,12
Zweden,44.0,13

Chrisir

Table table;

//String land2 [] = {
//  "land,bbp,nr ", 
//  "Luxemburg,104.5,1 ", 
//  "Noorwegen,79.1,2 ", 
//  "Qatar,68.9,3 ", 
//  "Zwitserland,67.6,4 ", 
//  "Denemarken,56.1,5 ", 
//  "Ierland,51.4,6", "Nederland,48.2,7 ", 
//  "Verenigde Arabische Emiraten,46.9,8 ", "Verenigde Staten, 46.4,9 ", "Oostenrijk,46.0,10 ", "Australië,45.6,11 ", "Finland,44.5,12 ", "Zweden,44.0,13"
//};

String land [] = {
};//"Luxemburg","Noorwegen","Qatar","Zwitserland","Denemarken","Ierland","Nederland","Verenigde    Arabische Emiraten","Verenigde Staten","Oostenrijk","Australië","Finland","Zweden"
float bbp []   = {
};//104.5,79.1,68.9,67.6,56.1,51.4,48.2,46.9,46.4,46.0,45.6,44.5,44.0
int nr []      = {
};//13,12,11,10,9,8,7,6,5,4,3,2,1

float r = random(250);

void setup () {

  size(2000, 600);
  background(240);
  smooth();

  table = loadTable("data.csv", "header");
  //table = parseTable(land2, "header");

  for (TableRow row : table.rows ()) {
    land = append(land, row.getString("land"));
    bbp  = append(bbp, row.getFloat("bbp"));
    nr   = append(nr, row.getInt("nr"));
    println(land.length);
    println(nr);
  }

  stroke(50, 50, 50, 50);
  strokeWeight(2);
}

void draw () {
  background(240);
  line(0, height/2, width, height/2);
  for (int i=0; i< nr.length; i++) {
    float c = nr[i]*12;
    fill(250, c, c, 200);
    ellipse(nr[i]*110 -20, height/2, bbp[i]*3, bbp[i]*3);
    fill(30);

    pushMatrix();
    translate(nr[i]*110 -20, height/2 - bbp[i]/2);
    rotate(radians(-45));
    text(land[i], -50, 50);
    text(bbp[i], 10, 10);
    textSize(18);
    popMatrix();

    text("BBP per land plaats 1t/m13", 10, height/3);
    text("Bron: https://nl.wikipedia.org/wiki/Lijst_van_landen_naar_bbp_per_hoofd_van_de_bevolking", height/2, width/4);
    smooth();
  }
}

Chrisir

make size the first line in setup()

always

you also had the closing } of the for loop too late in setup()

then you need land = append..... etc. to make it work