->number, where the first argument is the Cell itself and the other represent its neighbor. It returns the weight of the relation. This function will be called only if filter returns true.
    </li> 
    
  
    <li>
	  <strong>wrap</strong>: Will the Cells in the borders be connected to the Cells in the opposite border? The default value is false.
    </li> 
    
  
  </span></ul>







<h3>Usage</h3>
<pre class="example"><code><span class="id">cs</span>:<span class="function">createNeighborhood2</span>()