Didn't you just ask this?  Looks like you deleted the thread, including my response; which seems a bit rude.  Why didn't you just clarify what you were asking if you didn't get the reply you wanted?

There are different approaches to what you want.  e.g. Instead of drawing an ellipse you could instead use it as a mask to reveal filled lines underneath and bake the whole thing into a PImage.

do you mean the hash-lines pattern in the outer ring? this is a very confusing query

kb, http://www.riftgame.com/

If the OP hadn't deleted the original post it might make more sense:  And yes - I think the question is how to get the hash-lines in the background of the largest circle.  Pretty sure phi.lho posted something about 'texturing' arbitrary shapes a while ago...  But I'd imagine that since it doesn't look like the ellipse will be moving, using the masking approach would work well enough in this context.

i guess this might help:

1. float startAngle;
   float density;
   float radius;
   void setup() {
     size(800,800);
     smooth();
     stroke(0);
     noFill();
     startAngle  = PI/3;
     radius = 380;
     density = 0.01;
   }
   void draw() {
     background(255);
     startAngle = atan2(height/2-mouseY,width/2-mouseX);
     translate(width/2,height/2);
     noFill();
     stroke(0);
     strokeWeight(0.5);
     for(float i = -1; i <1;i+=density) {
       float angle = acos(i);
       line(cos(startAngle+angle)*radius,sin(startAngle+angle)*radius,cos(startAngle-angle)*radius,sin(startAngle-angle)*radius);
     }
     strokeWeight(1.5);
     ellipse(0,0,radius*2,radius*2);
     fill(220,220,0);
     stroke(255);
     for(float i = radius-10; i>0;i-= 15) {
       ellipse(0,0,i*2,i*2);
     }
   }