GeomConverter/src/org/lcsim/geometry/compact/converter/lcdd/util

diff -u -r1.7 -r1.8
--- Volume.java	25 Oct 2007 20:06:01 -0000	1.7
+++ Volume.java	12 Feb 2009 00:16:39 -0000	1.8
@@ -48,6 +48,8 @@

 
     public void setLimitSet(LimitSet limitset)
     {

+    	if (limitset == null)
+    		return;

         Element limitsetref = new Element("limitsetref");
         limitsetref.setAttribute("ref",limitset.getRefName());
         addContent(limitsetref);

@@ -59,6 +61,8 @@

     }
     public void setRegion(Region region)
     {

+    	if (region == null)
+    		return;

         Element regionref = new Element("regionref");
         regionref.setAttribute("ref",region.getRefName());
         addContent(regionref);

@@ -66,6 +70,8 @@

 
     public void setVisAttributes(VisAttributes vis)
     {

+    	if (vis == null)
+    		return;

         Element visref = new Element("visref");
         visref.setAttribute("ref",vis.getRefName());
         addContent(visref);