diff -u -r1.2 -r1.3
--- ParticleHelixProducer.java	10 Oct 2012 18:53:10 -0000	1.2
+++ ParticleHelixProducer.java	10 Oct 2012 19:57:34 -0000	1.3
@@ -58,6 +58,14 @@

     // Name of StripHit1D output collection.
     private String trackOutputCollectionName = "MCParticle_HelicalTrackFit";
    

+    private AIDA aida = AIDA.defaultInstance();
+    IPlotter plotter_trkparams;
+    ICloud1D h_pt;
+    ICloud1D h_phi0;
+    ICloud1D h_d0;
+    ICloud1D h_R;
+    ICloud1D h_slope;
+    ICloud1D h_z0;

 
     public void setDebug(boolean debug) {
         this.debug = debug;

@@ -88,6 +96,23 @@

         detToTrk = trackerhitutils.detToTrackRotationMatrix();
         
         

+        plotter_trkparams = aida.analysisFactory().createPlotterFactory().create();
+        plotter_trkparams.createRegions(3,2);
+         h_pt = aida.cloud1D("Track pT");
+         h_R = aida.cloud1D("Track R");
+         h_phi0 = aida.cloud1D("Track phi0");
+         h_d0 = aida.cloud1D("Track d0");
+         h_slope = aida.cloud1D("Track slope");
+         h_z0 = aida.cloud1D("Track z0");
+        plotter_trkparams.region(0).plot(h_pt);
+        plotter_trkparams.region(1).plot(h_R);
+        plotter_trkparams.region(2).plot(h_phi0);
+        plotter_trkparams.region(3).plot(h_d0);
+        plotter_trkparams.region(4).plot(h_slope);
+        plotter_trkparams.region(5).plot(h_z0);
+        plotter_trkparams.show();
+        
+

     }
 
     /**

@@ -163,6 +188,12 @@

                      
                     }
          

+                    h_pt.fill(htf.pT(bfield));
+                    h_R.fill(htf.R());
+                    h_d0.fill(htf.dca());
+                    h_phi0.fill(htf.phi0());
+                    h_slope.fill(htf.slope());
+                    h_z0.fill(htf.z0());

                     
                 }
             }