hps-java/src/main/java/org/lcsim/hps/recon/tracking

diff -N HPSMaterialManager.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ HPSMaterialManager.java	26 Nov 2012 03:16:24 -0000	1.1
@@ -0,0 +1,38 @@

+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package org.lcsim.hps.recon.tracking;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.lcsim.recon.tracking.seedtracker.MaterialManager;
+import org.lcsim.recon.tracking.seedtracker.MaterialXPlane;
+
+
+
+/**
+ *
+ * Simple way to remove multiple scattering in HPS tracker 
+ * by returning empty XPlanes that are used to describe the scatters
+ * 
+ * @author phansson
+ */
+public class HPSMaterialManager extends MaterialManager {
+    
+    private boolean _includeMS;
+    private final static List<MaterialXPlane> _emptyMaterialXPlaneList = new ArrayList<MaterialXPlane>();
+    public HPSMaterialManager() {
+        super();
+        this._includeMS = true;
+    }
+    public HPSMaterialManager(boolean includeMS) {
+        super();
+        this._includeMS = includeMS;
+    }
+    @Override
+    public List<MaterialXPlane> getMaterialXPlanes() {
+        return this._includeMS ? super.getMaterialXPlanes() : _emptyMaterialXPlaneList;
+    }
+    
+}