Sean, Liviu,

Thanks for the response.  Let me try to rephrase the question.

How do I access the neighbors grid created by createGrids() procedure from 
within the Schelling.java code?  I understand how start() recreates the 
grid because it calls createGrids().  My original code (copied below) was 
similar to what you had except I'm trying to call it from within 
Schelling.java.

I created a procedure within the Schelling.java code (mine is called 
rumDil.java for this project in CSS610) to capture the current agent 
population by using the colors on the grid.  I've copied the code below.  
I call this procedure from the SchellingWithUI.java so I can post some 
population statistics onto the JFree window.

What I get back is a grid with no data -- it seems I get an empty, 
uninitialized version of neighbors or I'm not calling the grid correctly. 
I already tried to move this code to the SchellingWithUI.java code and 
modifying IntGrid2D line with ((rumDil).state).neighbors with the same 
effect.

Moses

    protected double[] getProportion()
     {
     int countTerrorist = 0;
     int countNeutral = 0;
     int countFriendly = 0;
     int population;
     double[] proportion = {0.0, 0.0, 0.0};
     IntGrid2D grid2d = neighbors;
     int[][] c = grid2d.field;
 
     for (int x = 0; x < gridWidth; x++)
      for (int y = 0; y < gridHeight; y++)
       {
       c[x][y] = neighbors.get(x,y);
       if (c[x][y] == RED) countTerrorist++;
       else if (c[x][y] == GREY) countNeutral++;
       else if (c[x][y] == BLUE) countFriendly++;
       }
     population = countTerrorist + countNeutral + countFriendly;
     proportion[0] = countTerrorist/population;
     proportion[1] = countNeutral/population;
     proportion[2] = countFriendly/population;
     return proportion;
     }

On May 2, 2006, at 1:08 AM, Moses wrote:

> New question: I've got to access the grid created in Schelling after 
> createGrids().  I tried to access it through neighbors but got an 
> empty grid in the new function I created to access the grid.  How 
> would I access the grid created by createGrids()?

Moses, your question is not posed well enough to answer.

createGrids() is called when the object is constructed, and then is called 
again at start().  Whenever the method is called, the grid is rebuilt from 
scratch.

If you're trying to access the grid from an agent, you could probably do 
it with something like:

 IntGrid2D grid2d= ((Schelling)state).neighbors;
 int[][] theGridProper = grid.field;

Sean