Index: trunk/MagicSoft/Mars/Changelog
===================================================================
--- trunk/MagicSoft/Mars/Changelog	(revision 1819)
+++ trunk/MagicSoft/Mars/Changelog	(revision 1820)
@@ -1,4 +1,8 @@
                                                  -*-*- END OF LINE -*-*-
 
+ 2003/03/12: Abelardo Moralejo
+
+    * macros/mergecamera.C
+      - Added. Merges several MC camera output files into a single file.
 
  2003/03/08: Wolfgang Wittek
Index: trunk/MagicSoft/Mars/macros/mergecamera.C
===================================================================
--- trunk/MagicSoft/Mars/macros/mergecamera.C	(revision 1820)
+++ trunk/MagicSoft/Mars/macros/mergecamera.C	(revision 1820)
@@ -0,0 +1,53 @@
+//
+// A. Moralejo, March 2003
+// This macro merges several MC camera files into one. The output files
+// are useful to run Mars over larger samples of triggered events than 
+// those contained in a single file.
+//
+
+void mergecamera(Char_t *in="Proton*root", Char_t *out="all.root")
+{
+  //
+  // Open output file:
+  //
+  TFile* f = new TFile(out,"recreate");
+
+  //
+  // First the Events tree:
+  //
+  MMcEvt* mmcevt = new MMcEvt();;
+  MMcTrig* mmctrig = new MMcTrig();
+  MRawEvtHeader* mrawhead = new MRawEvtHeader();
+  MRawEvtData* mrawdata = new MRawEvtData();
+
+  TChain c("Events");
+  c.SetBranchAddress("MMcEvt",&mmcevt);
+  c.SetBranchAddress("MMcTrig",&mmctrig);
+  c.SetBranchAddress("MRawEvtHeader",&mrawhead);
+  c.SetBranchAddress("MRawEvtData",&mrawdata);
+  c.Add(in);
+  c.Merge(f,1000);
+
+  //
+  // Now the RunHeaders tree:
+  //
+  MMcConfigRunHeader* mcconfig = new MMcConfigRunHeader();
+  MMcCorsikaRunHeader* mccorsi = new MMcCorsikaRunHeader();
+  MMcFadcHeader* mcfadc = new MMcFadcHeader();
+  MMcRunHeader* mcrunhead = new MMcRunHeader();
+  MMcTrigHeader* mctrighead = new MMcTrigHeader();
+  MRawRunHeader* mrawrunhead = new MRawRunHeader();
+  TChain d("RunHeaders");
+  d.SetBranchAddress("MMcConfigRunHeader",&mcconfig);
+  d.SetBranchAddress("MMcCorsikaRunHeader",&mccorsi);
+  d.SetBranchAddress("MMcFadcHeader",&mcfadc);
+  d.SetBranchAddress("MMcRunHeader",&mcrunhead);
+  d.SetBranchAddress("MMcTrigHeader",&mctrighead);
+  d.SetBranchAddress("MRawRunHeader",&mrawrunhead);
+  d.Add(in);
+  d.Merge(f,1000);
+
+  f->Close();
+
+  return;
+}