diff -u -r1.2 -r1.3
--- PolyhedraEndcapCalorimeter3.java	21 Sep 2010 21:59:58 -0000	1.2
+++ PolyhedraEndcapCalorimeter3.java	28 Sep 2010 22:18:41 -0000	1.3
@@ -1,12 +1,11 @@

 /**
  * @author Jeremy McCormick <[log in to unmask]>

- * @version $Id: PolyhedraEndcapCalorimeter3.java,v 1.2 2010/09/21 21:59:58 jeremy Exp $

+ * @version $Id: PolyhedraEndcapCalorimeter3.java,v 1.3 2010/09/28 22:18:41 jeremy Exp $

  */
 package org.lcsim.geometry.subdetector;
 
 import org.jdom.Element;
 import org.jdom.JDOMException;

-import org.lcsim.geometry.Calorimeter;

 
 /**
  * @author jeremym

@@ -14,9 +13,41 @@

  */
 public class PolyhedraEndcapCalorimeter3 extends AbstractPolyhedraCalorimeter
 {

+    double zmin;
+    double zmax;
+    

     public PolyhedraEndcapCalorimeter3(Element node) throws JDOMException
     {
         super(node);

+        build(node);
+    }
+    
+    private void build(Element node) throws JDOMException
+    {
+        double thickness = getLayering().getThickness();
+        zlength = thickness;
+
+        Element dimensions = node.getChild("dimensions");
+
+        zmin = dimensions.getAttribute("zmin").getDoubleValue();
+        zmax = zmin + thickness;
+
+        irad = dimensions.getAttribute("rmin").getDoubleValue();
+        orad = dimensions.getAttribute("rmax").getDoubleValue();
+        orad = orad * Math.cos(Math.PI / this.nsides);
+
+        // Set layering pre-offset.
+        getLayering().setOffset(zmin);
+    }
+
+    public double getZMin()
+    {
+        return zmin;
+    }
+
+    public double getZMax()
+    {
+        return zmax;

     }
     
     public boolean isEndcap()