// Used in the configuration macros (macros/Config.C, etc.)
// Author:
//-----------------------------------------------------------------------
+
#include "TSystem.h"
+
#include "TVector.h"
+#include "AliLog.h"
#include "AliMagFCM.h"
ClassImp(AliMagFCM)
}
//_______________________________________________________________________
-AliMagFCM::AliMagFCM(const char *name, const char *title, const Int_t integ,
- const Float_t factor, const Float_t fmax):
- AliMagF(name,title,integ,factor,fmax),
+AliMagFCM::AliMagFCM(const char *name, const char *title, Int_t integ,
+ Float_t factor, Float_t fmax):
+ AliMagFC(name,title,integ,factor,fmax),
fXbeg(0),
fYbeg(0),
fZbeg(0),
fMap = 2;
SetSolenoidField();
- if(fDebug>-1) Info("ctor",
- "%s: Constant Mesh Field %s created: map= %d, factor= %f, file= %s\n",
- ClassName(),fName.Data(), fMap, factor,fTitle.Data());
+ AliDebug(1, Form(
+ "Constant Mesh Field %s created: map= %d, factor= %f, file= %s",
+ fName.Data(), fMap, factor,fTitle.Data()));
}
//_______________________________________________________________________
AliMagFCM::AliMagFCM(const AliMagFCM &magf):
- AliMagF(magf),
+ AliMagFC(magf),
fXbeg(0),
fYbeg(0),
fZbeg(0),
}
//_______________________________________________________________________
-void AliMagFCM::Field(Float_t *x, Float_t *b)
+void AliMagFCM::Field(Float_t *x, Float_t *b) const
{
//
// Method to calculate the magnetic field
// --- find the position in the grid ---
b[0]=b[1]=b[2]=0;
- if(-700<x[2] && x[2]<fZbeg && x[0]*x[0]+(x[1]+30)*(x[1]+30) < 560*560) {
- b[2]= fSolenoid;
+
+
+ if(-700 < -x[2] && -x[2] < fZbeg && x[0] * x[0] +(x[1]+30)*(x[1]+30) < 560*560) {
+ b[2]= fSolenoid;
} else {
- Bool_t infield=(fZbeg<=x[2] && x[2]<fZbeg+fZdel*(fZn-1)
- && ( fXbeg <= TMath::Abs(x[0]) && TMath::Abs(x[0]) < fXbeg+fXdel*(fXn-1) )
- && ( fYbeg <= TMath::Abs(x[1]) && TMath::Abs(x[1]) < fYbeg+fYdel*(fYn-1) ));
+ // The field map used here was calculated in a coordinate system where the muon arm is at z > 0
+ // Transfom x -> -x and z -> -z
+ Float_t xm = - x[0];
+ Float_t ym = x[1];
+ Float_t zm = - x[2];
+
+ Bool_t infield=(fZbeg <= zm && zm < fZbeg+fZdel*(fZn-1)
+ && ( fXbeg <= TMath::Abs(xm) && TMath::Abs(xm) < fXbeg+fXdel*(fXn-1) )
+ && ( fYbeg <= TMath::Abs(ym) && TMath::Abs(ym) < fYbeg+fYdel*(fYn-1) ));
if(infield) {
- xl[0]=TMath::Abs(x[0])-fXbeg;
- xl[1]=TMath::Abs(x[1])-fYbeg;
- xl[2]=x[2]-fZbeg;
+ xl[0]=TMath::Abs(xm)-fXbeg;
+ xl[1]=TMath::Abs(ym)-fYbeg;
+ xl[2]=zm-fZbeg;
// --- start with x
//ratx,raty,ratz,b[0],b[1],b[2]);
//
// ... use the dipole symmetry
- if (x[0]*x[1] < 0) b[1]=-b[1];
- if (x[0]<0) b[2]=-b[2];
+ if (xm*ym < 0) b[1]=-b[1];
+ if (xm<0) b[2]=-b[2];
+ b[0] = -b[0];
+ b[2] = -b[2];
+
} else {
- printf("Invalid field map for constant mesh %d\n",fMap);
+ AliError(Form("Invalid field map for constant mesh %d",fMap));
}
} else {
//This is the ZDC part
- Float_t rad2=x[0]*x[0]+x[1]*x[1];
- if(x[2]>kCORBEG2 && x[2]<kCOREND2){
- if(rad2<kCOR2RA2){
- b[0] = kFCORN2;
- }
- }
- else if(x[2]>kZ1BEG && x[2]<kZ1END){
- if(rad2<kZ1RA2){
- b[0] = -kG1*x[1];
- b[1] = -kG1*x[0];
- }
- }
- else if(x[2]>kZ2BEG && x[2]<kZ2END){
- if(rad2<kZ2RA2){
- b[0] = kG1*x[1];
- b[1] = kG1*x[0];
- }
- }
- else if(x[2]>kZ3BEG && x[2]<kZ3END){
- if(rad2<kZ3RA2){
- b[0] = kG1*x[1];
- b[1] = kG1*x[0];
- }
- }
- else if(x[2]>kZ4BEG && x[2]<kZ4END){
- if(rad2<kZ4RA2){
- b[0] = -kG1*x[1];
- b[1] = -kG1*x[0];
- }
- }
- else if(x[2]>kD1BEG && x[2]<kD1END){
- if(rad2<kD1RA2){
- b[1] = -kFDIP;
- }
- }
- else if(x[2]>kD2BEG && x[2]<kD2END){
- if(((x[0]-kXCEN1D2)*(x[0]-kXCEN1D2)+(x[1]-kYCEN1D2)*(x[1]-kYCEN1D2))<kD2RA2
- || ((x[0]-kXCEN2D2)*(x[0]-kXCEN2D2)+(x[1]-kYCEN2D2)*(x[1]-kYCEN2D2))<kD2RA2){
- b[1] = kFDIP;
- }
+ ZDCField(x,b);
}
+ if(fFactor!=1) {
+ b[0]*=fFactor;
+ b[1]*=fFactor;
+ b[2]*=fFactor;
}
}
- if(fFactor!=1) {
- b[0]*=fFactor;
- b[1]*=fFactor;
- b[2]*=fFactor;
- }
}
//_______________________________________________________________________
Int_t ix, iy, iz, ipx, ipy, ipz;
Float_t bx, by, bz;
char *fname;
- if(fDebug) printf("%s: Reading Magnetic Field %s from file %s\n",ClassName(),fName.Data(),fTitle.Data());
+ AliDebug(1,Form("Reading Magnetic Field %s from file %s",fName.Data(),fTitle.Data()));
fname = gSystem->ExpandPathName(fTitle.Data());
magfile=fopen(fname,"r");
delete [] fname;
if (magfile) {
fscanf(magfile,"%d %d %d %f %f %f %f %f %f",
&fXn, &fYn, &fZn, &fXdel, &fYdel, &fZdel, &fXbeg, &fYbeg, &fZbeg);
- if(fDebug>1) printf("%s: fXn %d, fYn %d, fZn %d, fXdel %f, fYdel %f, fZdel %f, fXbeg %f, fYbeg %f, fZbeg %f\n",
- ClassName(),fXn, fYn, fZn, fXdel, fYdel, fZdel, fXbeg, fYbeg, fZbeg);
+ AliDebug(2,Form("fXn %d, fYn %d, fZn %d, fXdel %f, fYdel %f, fZdel %f, fXbeg %f, fYbeg %f, fZbeg %f",
+ fXn, fYn, fZn, fXdel, fYdel, fZdel, fXbeg, fYbeg, fZbeg));
fXdeli=1./fXdel;
fYdeli=1./fYdel;
fZdeli=1./fZdel;
}
}
} else {
- printf("%s: File %s not found !\n",ClassName(),fTitle.Data());
- exit(1);
+ AliFatal(Form("File %s not found !",fTitle.Data()));
}
}
//_______________________________________________________________________
-void AliMagFCM::Copy(AliMagFCM & /* magf */) const
+void AliMagFCM::Copy(TObject & /* magf */) const
{
//
// Copy *this onto magf -- Not implemented
//
- Fatal("Copy","Not implemented!\n");
+ AliFatal("Not implemented!");
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff