i think we're on to something

post code :)

ok so is this what you want?

1. void setup()
2. {
3.   size(800,600);
4.   smooth();
5. }
6. void draw()
7. {
8.   for (int yy=100; yy<=1100; yy +=100) {
9.     for (int xx=100;  xx<=1500; xx +=100) {
10.       if(floor(random(2)) == 1)
11.         continue;
12.       ellipse(xx,yy,160,160); ////////////
13.     }
14.     noLoop();
15.   }
16. }

if not then there's some translation issue between both of us :)
it would also help if you drew a picture that explained what you want to do (seriously)

also if you don't want the "fishscale pattern" you can just make the ellipses smaller

damn, you beat me to it. although mine saves the drawing order :)

yeah it's new to Processing.

if you define your arraylist like this:

1. ArrayList<ObjectType> myList = new ArrayList<ObjectType>();

you can use that kind of for loop, however it should be noted that the list (myList in this case) can only store objects of the type "ObjectType".

and yes it is the same.

also if you create your arraylist like state above (ArrayList<>) then you no longer need to cast the object, since the arraylist only can store one type of object. so your could would have been:

1.   for (int i = 0 ; i<points.size() ; i++)
2.   {
3.     PVector p = points.get(i); //no casting
   
4.   }

also also edit edit: when i use for(ObjectType ot:myList) in processing 1.2.1 auto-formatting, ctrl+t, stops working so i try to avoid it.

that's what i said:

yeah it's new to Processing.