Index: trunk/MagicSoft/Mars/mmontecarlo/MMcCollectionAreaCalc.cc
===================================================================
--- trunk/MagicSoft/Mars/mmontecarlo/MMcCollectionAreaCalc.cc	(revision 853)
+++ trunk/MagicSoft/Mars/mmontecarlo/MMcCollectionAreaCalc.cc	(revision 853)
@@ -0,0 +1,94 @@
+/* ======================================================================== *\
+!
+! *
+! * This file is part of MARS, the MAGIC Analysis and Reconstruction
+! * Software. It is distributed to you in the hope that it can be a useful
+! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
+! * It is distributed WITHOUT ANY WARRANTY.
+! *
+! * Permission to use, copy, modify and distribute this software and its
+! * documentation for any purpose is hereby granted without fee,
+! * provided that the above copyright notice appear in all copies and
+! * that both that copyright notice and this permission notice appear
+! * in supporting documentation. It is provided "as is" without express
+! * or implied warranty.
+! *
+!
+!
+!   Author(s): Harald Kornmayer 1/2001 (harald@mppmu.mpg.de)
+!              Thomas Bretz  12/2000 (tbretz@uni-sw.gwdg.de)
+!
+!   Copyright: MAGIC Software Development, 2000-2001
+!
+!
+\* ======================================================================== */
+
+#include "MMcCollectionAreaCalc.h"
+
+#include "MParList.h"
+
+#include "MLog.h"
+#include "MLogManip.h"
+
+#include "MMcEvt.hxx"
+#include "MMcTrig.hxx" 
+
+#include "MHMcCollectionArea.h"
+
+ClassImp(MMcCollectionAreaCalc)
+
+MMcCollectionAreaCalc::MMcCollectionAreaCalc (const char *name, const char *title)
+{
+    *fName  = name  ? name  : "MMcCollectionAreaCalc";
+    *fTitle = title ? title : "Task to calc the collection area ";
+} 
+
+Bool_t MMcCollectionAreaCalc::PreProcess (MParList *pList)
+{
+    // connect the raw data with this task
+
+    fMcEvt = (MMcEvt*)pList->FindObject("MMcEvt");
+    if (!fMcEvt)
+    {
+        *fLog << dbginf << "MMcEvt not found... exit." << endl;
+        return kFALSE;
+    }
+
+    fMcTrig = (MMcTrig*)pList->FindObject("MMcTrig");
+    if (!fMcTrig)
+    {
+        *fLog << dbginf << "MMcTrig not found... exit." << endl;
+        return kFALSE;
+    }
+
+    fCollArea = (MHMcCollectionArea*)pList->FindCreateObj("MHMcCollectionArea");
+    if (!fCollArea)
+        return kFALSE;
+
+    return kTRUE;
+}
+
+Bool_t MMcCollectionAreaCalc::Process () 
+{ 
+    const Float_t energy = log10(fMcEvt->GetEnergy());
+    const Float_t impact = fMcEvt->GetImpact()/100.;
+
+    fCollArea->FillAll(energy, impact);
+
+    if (fMcTrig->GetFirstLevel() <= 0)
+        return kTRUE;
+
+    fCollArea->FillSel(energy, impact);
+
+    return kTRUE;
+}
+
+Bool_t MMcCollectionAreaCalc::PostProcess () 
+{ 
+    //
+    //   do the calculation of the effectiv area
+    //
+    fCollArea->CalcEfficiency();
+
+    return kTRUE;
+}
Index: trunk/MagicSoft/Mars/mmontecarlo/MMcCollectionAreaCalc.h
===================================================================
--- trunk/MagicSoft/Mars/mmontecarlo/MMcCollectionAreaCalc.h	(revision 853)
+++ trunk/MagicSoft/Mars/mmontecarlo/MMcCollectionAreaCalc.h	(revision 853)
@@ -0,0 +1,32 @@
+#ifndef MMCCOLLECTIONAREACALC_H
+#define MMCCOLLECTIONAREACALC_H
+
+#ifndef MTASK_H
+#include "MTask.h"
+#endif
+
+class MParList;
+class MMcEvt;
+class MMcTrig;
+class MHMcCollectionArea;
+
+class MMcCollectionAreaCalc : public MTask
+{
+private:
+    MMcEvt  *fMcEvt;
+    MMcTrig *fMcTrig;
+
+    MHMcCollectionArea *fCollArea;
+
+public:
+    MMcCollectionAreaCalc(const char *name=NULL, const char *title=NULL);
+
+    Bool_t PreProcess(MParList *pList);
+    Bool_t Process() ;
+    Bool_t PostProcess() ;
+
+    ClassDef(MMcCollectionAreaCalc, 0) // Task to calculate the collection area histogram
+};
+
+#endif 
+