code: // Theo Walker
  // Max Planck Florida Institute
  // naroom@gmail.com
  
  package cellMagicWand;
  
  public class RingPixel {
  	// a RingPixel is a single pixel from the original image
  	// it is associated with a specific ring (e.g. r=5).
  	
  	// Note that the mapping from cartesian pixels to ring pixels is not 1:1 -- 
  	// some cartesian pixels will be on 2 rings, and hence have 2 ring 
  	// pixels associated with them.
  	
  	//see Ring.java for more details on what this structure is all about.
  	
  	public int x; //x, y are cartesian coordinates from the original image
  	public int y; 
  	public double intensity; 
  	public double thetaMin; //the lowest value of theta that's still inside this pixel for a given r
  	public double thetaMax; 
  	public double r; 
  	
  	public RingPixel(){}
  
  }
  