I want to display ID of an object in its centre

xweet

I am trying to display "id" in the centre of object.

Niche(int id, PVector loc, boolean settled) {
  ref = id;  
  happy = settled;  
  //create Nucleus
  centre = new Nucleus(id,  false, loc);
  //create boundaryNodes
  for (int i=0; i<numNodes; i++) {
    origin = loc.get();
    nodes[i] = new boundaryNode(id, true, false, origin);

Thanks in Advance.

koogs

add up all the x and y coordinates, divide by the count to give you the centre of the shape.

post a runnable example.

xweet

i have center location nucleus.add(space[i].nodes[i].pos); but i want to display number or string inside it.

xweet

//nucleus is the centre of the niche

class Nucleus {

  int id;
  PVector pos;
  PVector nucleus = new PVector();
  boolean frozen;

  Nucleus(int identity, boolean hunger, PVector loc) {
    id = identity;
    pos = loc.get();
  }

  void run() {
    updatePos();
    render();
  }

  void updatePos() {
//   println(id, "current pos", pos);
    nucleus = new PVector();
    for (int i=0; i<space.length; i++) {
      if (space[i].ref == id) {
        for (int j=0; j<space[i].nodes.length; j++) {
          nucleus.add(space[i].nodes[i].pos);
        }
      }   
    }
    nucleus.div(numNodes);
// println("current nucleus", nucleus);
//   float d = pos.dist(nucleus);
//    if (d == 0) {
//      frozen = true;
//      println("FROZEN .........!!!!!!!!!!!!!!!");
//    }
    pos = nucleus;
//    println(id, "new pos", pos);
  }

  void render() {
    stroke(200, 70);
//    stroke(250, 50);
    noFill();
    ellipse(pos.x, pos.y, 8, 8);
    stroke(10);
    point(pos.x, pos.y);
  }
}

Chrisir

• for ellipse() you can change the meaning of the parameters with ellipseMode

• for text() you can change it with textAlign. e.g textAlign(CENTER,CENTER); or textAlign(LEFT);

so

void render() { 

    stroke(200, 70); 
    // stroke(250, 50); 
    noFill(); 
    ellipse(pos.x, pos.y, 8, 8); 
    stroke(10); 
    point(pos.x, pos.y); 

    fill(0); 
    textAlign(CENTER,CENTER);
    text(id,pos.x, pos.y); 
}