diff -u -r1.1 -r1.2
--- ClusterTableModel.java	14 Mar 2005 16:11:33 -0000	1.1
+++ ClusterTableModel.java	25 Aug 2005 23:09:21 -0000	1.2
@@ -9,7 +9,7 @@

  */
 class ClusterTableModel extends GenericTableModel
 {

-   private static final String[] columns = {"Type","Energy","Position","ITheta","IPhi"};

+   private static final String[] columns = {"Type","Energy","Position","ITheta","IPhi","Size"};

    private static Class klass = Cluster.class;
 
    ClusterTableModel()

diff -u -r1.6 -r1.7
--- BasicCluster.java	5 Aug 2005 18:17:01 -0000	1.6
+++ BasicCluster.java	25 Aug 2005 23:09:21 -0000	1.7
@@ -3,6 +3,8 @@

 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;

+import java.util.Set;
+import java.util.HashSet;

 import org.lcsim.event.CalorimeterHit;
 import org.lcsim.event.Cluster;
 import org.lcsim.geometry.compact.Subdetector;

@@ -282,4 +284,15 @@

         needsPropertyCalculation = false;
     }
     

+    /** Return the hits comprising the cluster, including hits in
+     * subclusters, as per interface.  Hits belonging to more than one
+     * cluster/subcluster should be counted only once.
+     */
+    public int getSize() {
+	Set<CalorimeterHit> hitSet = new HashSet<CalorimeterHit>(this.hits);
+	for( Cluster clus : clusters ) {
+	    hitSet.addAll( clus.getCalorimeterHits() );
+	}
+	return hitSet.size();
+    }

 }