* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+
//_________________________________________________________________________
-// Digit class for PHOS that contains an absolute ID and an energy
-//*-- Author : Laurent Aphecetche SUBATECH
-//////////////////////////////////////////////////////////////////////////////
+// PHOS digit: Id
+// energy
+// 3 identifiers for the primary particle(s) at the origine of the digit
+// The digits are made in FinishEvent() by summing all the hits in a single PHOS crystal or PPSD gas cell
+// It would be nice to replace the 3 identifiers by an array, but, because digits are kept in a TClonesQArray,
+// it is not possible to stream such an array... (beyond my understqnding!)
+//
+//*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH)
+
// --- ROOT system ---
// --- Standard library ---
-#include <iostream>
+#include <iostream.h>
// --- AliRoot header files ---
ClassImp(AliPHOSDigit)
//____________________________________________________________________________
-AliPHOSDigit::AliPHOSDigit(Int_t id, Int_t DigEnergy) : AliDigitNew( ), fId(id),fAmp(DigEnergy)
-{
- // This part should be a true Digitization, but is not for the moment.
- // fAmp = energy ;
- fId = id;
- fAmp = DigEnergy ;
-}
-
-//____________________________________________________________________________
-Bool_t AliPHOSDigit::operator==(AliPHOSDigit const &Digit) const
+ AliPHOSDigit::AliPHOSDigit()
{
- if ( fId == Digit.fId )
- return kTRUE ;
- else
- return kFALSE ;
+ // default ctor
+
+ fIndexInList = -1 ;
+ fNprimary = 0 ;
+ fPrimary1 = -1 ;
+ fPrimary2 = -1 ;
+ fPrimary3 = -1 ;
}
//____________________________________________________________________________
-AliPHOSDigit& AliPHOSDigit::operator+(AliPHOSDigit const &Digit)
-{
- fAmp += Digit.fAmp ;
-
- return *this ;
+AliPHOSDigit::AliPHOSDigit(Int_t primary, Int_t id, Int_t DigEnergy, Int_t index)
+{
+ // ctor with all data
+
+ fAmp = DigEnergy ;
+ fId = id ;
+ fIndexInList = index ;
+ fPrimary1 = primary ;
+ fNprimary = 1 ;
+ fPrimary2 = -1 ;
+ fPrimary3 = -1 ;
}
//____________________________________________________________________________
-ostream& operator << ( ostream& out , const AliPHOSDigit& Digit)
+AliPHOSDigit::AliPHOSDigit(const AliPHOSDigit & digit)
{
- out << "ID " << Digit.fId << " Energy = " << Digit.fAmp ;
-
- return out ;
+ // copy ctor
+
+ fAmp = digit.fAmp ;
+ fId = digit.fId;
+ fIndexInList = digit.fIndexInList ;
+ fNprimary = digit.fNprimary ;
+ fPrimary1 = digit.fPrimary1 ;
+ fPrimary2 = digit.fPrimary2 ;
+ fPrimary3 = digit.fPrimary3 ;
}
//____________________________________________________________________________
Int_t AliPHOSDigit::Compare(TObject * obj)
{
- Int_t rv ;
+ // Compares two digits with respect to its Id
+ // to sort according increasing Id
+
+ Int_t rv ;
AliPHOSDigit * digit = (AliPHOSDigit *)obj ;
return rv ;
}
+
+//____________________________________________________________________________
+Int_t AliPHOSDigit::GetPrimary(Int_t index) const
+{
+ // Returns the primary particle id index =1,2,3
+
+ Int_t rv = -1 ;
+ if ( index > 3 )
+ cout << "AliPHOSDigit ERROR > only 3 primaries allowed" << endl ;
+ else {
+ switch (index) {
+ case 1 :
+ rv = fPrimary1 ;
+ break ;
+ case 2 :
+ rv = fPrimary2 ;
+ break ;
+ case 3 :
+ rv = fPrimary3 ;
+ break ;
+ }
+ }
+
+ return rv ;
+
+}
+
+//____________________________________________________________________________
+Bool_t AliPHOSDigit::operator==(AliPHOSDigit const & digit) const
+{
+ // Two digits are equal if they have the same Id
+
+ if ( fId == digit.fId )
+ return kTRUE ;
+ else
+ return kFALSE ;
+}
+
+//____________________________________________________________________________
+AliPHOSDigit& AliPHOSDigit::operator+(AliPHOSDigit const & digit)
+{
+ // Adds the amplitude of digits and completes the list of primary particles
+
+ fAmp += digit.fAmp ;
+
+ // Here comes something crummy ... but I do not know how to stream pointers
+ // because AliPHOSDigit is in a TCLonesArray
+
+ Int_t tempo1[3] ;
+ tempo1[0] = fPrimary1 ;
+ tempo1[1] = fPrimary2 ;
+ tempo1[2] = fPrimary3 ;
+
+ Int_t tempo2[3] ;
+ tempo2[0] = digit.fPrimary1 ;
+ tempo2[1] = digit.fPrimary2 ;
+ tempo2[2] = digit.fPrimary3 ;
+
+ Int_t max1 = fNprimary ;
+ Int_t max2 = digit.fNprimary ;
+
+ if ( fNprimary >= 3 ) {
+ cout << "AliPHOSDigit + operator ERROR > too many primaries, modify AliPHOSDigit" << endl ;
+ }
+ else {
+ fNprimary += digit.fNprimary ;
+ if ( fNprimary > 3 ) {
+ cout << "AliPHOSDigit + operator ERROR > too many primaries, modify AliPHOSDigit" << endl ;
+ fNprimary = 3 ;
+ }
+
+ Int_t tempo3[3] ;
+ Int_t index ;
+ for (index = 0 ; index < 3 ; index++)
+ tempo3[index] = 0 ;
+
+ for (index = 0 ; index < max1 ; index++)
+ tempo3[index] = tempo1[index] ;
+
+ for (index = 0 ; index < max2 ; index++)
+ tempo3[index+max1] = tempo2[index] ;
+
+ fPrimary1 = tempo3[0] ;
+ fPrimary2 = tempo3[1] ;
+ fPrimary3 = tempo3[2] ;
+
+ }
+ // end of crummy stuff
+
+ return *this ;
+}
+
+//____________________________________________________________________________
+ostream& operator << ( ostream& out , const AliPHOSDigit & digit)
+{
+ // Prints the data of the digit
+
+ out << "ID " << digit.fId << " Energy = " << digit.fAmp << endl
+ << "Primary 1 = " << digit.fPrimary1 << endl
+ << "Primary 2 = " << digit.fPrimary2 << endl
+ << "Primary 3 = " << digit.fPrimary3 << endl
+ << "Position in list = " << digit.fIndexInList << endl ;
+ return out ;
+}
+
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff