Index: trunk/MagicSoft/Mars/mreflector/MRflEvtData.cc
===================================================================
--- trunk/MagicSoft/Mars/mreflector/MRflEvtData.cc	(revision 8289)
+++ trunk/MagicSoft/Mars/mreflector/MRflEvtData.cc	(revision 8290)
@@ -134,5 +134,5 @@
 // --------------------------------------------------------------------------
 //
-// Fills all photon distances into a TH1 scaled with scale (default=1)
+// Fills all photon distances scaled with scale (default=1) into a TH1
 //
 void MRflEvtData::FillRad(TH1 &hist, Float_t scale) const
@@ -147,18 +147,19 @@
 // --------------------------------------------------------------------------
 //
-// Fills all photon distances into a TH1 scaled with scale (default=1)
-//
-void MRflEvtData::FillRad(TH2 &hist, Double_t z, Float_t scale) const
-{
-    MRflSinglePhoton *ph=NULL;
-
-    TIter Next(&fList);
-    while ((ph=(MRflSinglePhoton*)Next()))
-        ph->FillRad(hist, z, scale);
-}
-
-// --------------------------------------------------------------------------
-//
-// Fills all photons into a TH2 scaled with scale (default=1)
+// Fills all photon distances scaled with scale (default=1) versus x
+// into a TH2
+//
+void MRflEvtData::FillRad(TH2 &hist, Double_t x, Float_t scale) const
+{
+    MRflSinglePhoton *ph=NULL;
+
+    TIter Next(&fList);
+    while ((ph=(MRflSinglePhoton*)Next()))
+        ph->FillRad(hist, x, scale);
+}
+
+// --------------------------------------------------------------------------
+//
+// Fills all photons (x,y) scaled with scale (default=1) into a TH2.
 //
 void MRflEvtData::Fill(TH2 &hist, Float_t scale) const
@@ -173,13 +174,13 @@
 // --------------------------------------------------------------------------
 //
-// Fills all photons into a TH2 scaled with scale (default=1)
-//
-void MRflEvtData::Fill(TH3 &hist, Double_t x, Float_t scale) const
-{
-    MRflSinglePhoton *ph=NULL;
-
-    TIter Next(&fList);
-    while ((ph=(MRflSinglePhoton*)Next()))
-        ph->Fill(hist, x, scale);
+// Fills all photons (x,y) scaled with scale (default=1) versus z into a TH3
+//
+void MRflEvtData::Fill(TH3 &hist, Double_t z, Float_t scale) const
+{
+    MRflSinglePhoton *ph=NULL;
+
+    TIter Next(&fList);
+    while ((ph=(MRflSinglePhoton*)Next()))
+        ph->Fill(hist, z, scale);
 }
 
Index: trunk/MagicSoft/Mars/mreflector/MRflSinglePhoton.cc
===================================================================
--- trunk/MagicSoft/Mars/mreflector/MRflSinglePhoton.cc	(revision 8289)
+++ trunk/MagicSoft/Mars/mreflector/MRflSinglePhoton.cc	(revision 8290)
@@ -44,5 +44,5 @@
 // --------------------------------------------------------------------------
 //
-// Fill radial photon distance into histogram scaled by scale.
+// Fill radial photon distance scaled by scale into 1D histogram.
 //
 void MRflSinglePhoton::FillRad(TH1 &hist, Float_t scale) const
@@ -53,5 +53,5 @@
 // --------------------------------------------------------------------------
 //
-// Fill radial photon distance into histogram scaled by scale.
+// Fill radial photon distance scaled by scale versus x into 2D histogram.
 //
 void MRflSinglePhoton::FillRad(TH2 &hist, Double_t x, Float_t scale) const
@@ -62,5 +62,5 @@
 // --------------------------------------------------------------------------
 //
-// Fill photon position into histogram scaled by scale.
+// Fill photon position (x,y) scaled by scale into 2D histogram.
 //
 void MRflSinglePhoton::Fill(TH2 &hist, Float_t scale) const
@@ -71,5 +71,5 @@
 // --------------------------------------------------------------------------
 //
-// Fill photon position into histogram scaled by scale.
+// Fill photon position (x,y) scaled by scale versus z into 3D histogram.
 //
 void MRflSinglePhoton::Fill(TH3 &hist, Double_t z, Float_t scale) const