1. // Ellipse
2.      fill(0);
3.      noStroke();
4.      pushMatrix();
5.        translate(x, y, z);
6.        beginShape(TRIANGLE_STRIP);
7.          for(float t=0; t<TWO_PI; t+=TWO_PI/12) {
8.            fill(0,255);
9.            vertex(0,0);
10.            fill(0,0);
11.            vertex(4*cos(t),4*sin(t));
12.          }
13.        endShape();
14.      popMatrix();

1. import peasy.*;
2. import toxi.geom.Vec3D;
3. 
   
4. int NUM_PARTICLES = 5000;
5. 
   
6. PeasyCam cam;
7. Node nodes[] = new Node[NUM_PARTICLES];
8. float radius = 150;
9. 
   
10. void setup(){
11.   size(800, 600, P3D); 
12.   background(255);  
13.   cam = new PeasyCam(this, width);
14.   
15.   for(int i=0; i<NUM_PARTICLES; i++) { 
16.     Node n = new Node(random(0,TWO_PI), random(-1,1)); 
17.     nodes[i] = n;
18.   }
19.   for(int j=0; j<NUM_PARTICLES; j++) { 
20.     nodes[j].connect(nodes[(int)random(0, nodes.length-1)]);
21.   }
22. };
23. 
    
24. void draw(){
25.   background(255);
26.   for(int i=0; i<nodes.length; i++){
27.     Node n = nodes[i];
28.     n.render();
29.   }
30. };
31. class Node extends Vec3D {
32.  float theta, u;
33.  Node conn;
34.  
35.  Node(float Theta, float U) {
36.    theta = Theta;
37.    u = U;
38.    x = radius*cos(theta)*sqrt(1-(u*u));
39.    y = radius*sin(theta)*sqrt(1-(u*u));
40.    z = u*radius;
41.  }
42.  
43.  void connect(Node cn) {
44.    conn = cn;  
45.  }
46.  
47.  void render() {
48.    pushMatrix();
49.      translate(x, y, z);
50.      point(0, 0, 0);
51.      stroke(0,0,0,20);
52.    popMatrix();
53.  }
54.   
55. }

I want to draw connection lines from one 'node' to another using single pixel lines. I've had a google and can't seem to find what I'm looking for, can anyone help? I found this thread  http://processing.org/discourse/yabb2/YaBB.pl?num=1264522077 but the example given doesn't work for me (yes I have toxiclibs installed.)