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Index › Programming Questions & Help › Syntax Questions › New Programmer. Fill Circular area with shapes.
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New Programmer. Fill Circular area with shapes. (Read 449 times)
leon
New Programmer. Fill Circular area with shapes.
May 1st, 2009, 3:02pm  
Hi, I've just started to learn processing, so my question is very, very simple.

I'm ramdomly filling an area with ellipses

Code:
  for(int i=1; i<200; i++){
    
    int pX = int(random(width));
    int pY = int(random(height));
    int escala = int(random (20));
    int rR = int(random(255));
    int rG = int(random(255));
    int rB = int(random(255));
    fill(rR, rG, rB);
    ellipse(pX, pY, escala, escala);
  }


but I want to restict this area to a circular area. Something similar to the image found here: universodeltarot.com/imagenesuniverso/constelacion.jpg

Thank for help!
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leonfcs  
seltar
Re: New Programmer. Fill Circular area with shapes.
Reply #1 - May 1st, 2009, 4:25pm  
void setup()
{
 size(500,500);
}

void draw()
{
 int x = 0, y = 0;
 while(!insideCircle(x,y,width/2,height/2,width/3)){
   x = (int)random(width);
   y = (int)random(height);
 }
 int s = (int)random(10,45);
 noStroke();
 fill(random(255),random(255),random(255));
 ellipse(x,y,s,s);
}

boolean insideCircle(int x, int y, int cx, int cy, float cr)
{
 float d = sqrt(sq(x-cx)+sq(y-cy));
 return ( d < cr && d >= 0 )?true:false;
}
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