diff -u -r1.6 -r1.7
--- MaterialManager.java	8 Jul 2010 17:09:46 -0000	1.6
+++ MaterialManager.java	1 Feb 2011 22:49:09 -0000	1.7
@@ -42,8 +42,8 @@

     private List<MaterialCylinder> _matcyl = new ArrayList<MaterialCylinder>();
     private List<MaterialDisk> _matdsk = new ArrayList<MaterialDisk>();
     private HashMap<ISolid, Double> solid_vol_map = new HashMap<ISolid, Double>(400);

-    private double _rmax;
-    private double _zmax = 1800.;

+    private static double _rmax;
+    private static double _zmax = 1800.;

 
     /** Creates a new instance of MaterialManager */
     public MaterialManager() {

@@ -146,11 +146,11 @@

         return _matpc;
     }
 

-    public double getRMax() {

+    public static double getRMax() {

         return _rmax;
     }
 

-    public double getZMax() {

+    public static double getZMax() {

         return _zmax;
     }