title: How to draw a circle pixel by pixel?
body: <p>I am able to draw a square pixel by pixel as below</p>
  
  <pre><code>for(int i=0 ;i&lt;drawbox.size.width/2;i++)
      {
          for (int j=0; j&lt;drawbox.size.height/2; j++)
          {
                   Point.y++;
                   NSLog(@"point:%f,%f",Point.x,Point.y);  
          }
          Point.x++;
      }
  </code></pre>
  
  <p>Here drawrect is CGRect and Point is the CGPoint I am using to draw pixel by pixel</p>
  
  <p>I iterate over this and find a square to be made. This square is filled with each pixel so it just not draw a square with border but it includes all pixels within the square.</p>
  
  <p>I want the same thing but for circle (filled circle's pixels).</p>
  
  <p>How can I achieve this?</p>