lcsim/src/org/lcsim/mc/fast/reconstructedparticle

diff -u -r1.11 -r1.12
--- MCFastReconstructedParticle.java	18 Sep 2007 03:46:27 -0000	1.11
+++ MCFastReconstructedParticle.java	29 Nov 2007 09:50:08 -0000	1.12
@@ -45,14 +45,22 @@

     private BasicHepLorentzVector p_reco = new BasicHepLorentzVector();
     private BasicHepLorentzVector p_track = new BasicHepLorentzVector();
     

-    public MCFastReconstructedParticle(Track t, ParticleType type, Particle p, Cluster assoc_c, double wtcal)

+    public MCFastReconstructedParticle(Track t, ParticleType type, Particle p, Cluster assoc_c, double wtcal, boolean refPoint000)

     {
 	MCFast.log.info(" PDGID= "+type.getPDGID()+" t.getPX,...= "+t.getPX()+" "+t.getPY()+" "+t.getPZ());
         _mass = type.getMass();
         addTrack(t);
         _charge = t.getCharge();

-        // Use true point of origin for reference point for now.

+	// Use (0,0,0) for reference point if refPoint000=true
+        // Use true point of origin for reference point if refPoint000=false
+	if(refPoint000) 
+	    {
+        _referencePoint = new BasicHep3Vector(0, 0, 0);
+	    }
+	else
+	    {

         _referencePoint = p.getOrigin();

+	    }

         e_track = sqrt(((ReconTrack)t).getDocaMomentumVec(_referencePoint).magnitudeSquared()+ _mass*_mass);
 	p_track.setV3(e_track, ((ReconTrack)t).getDocaMomentumVec(_referencePoint));
 	p3_track = p_track.v3();