* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.22 2002/11/21 22:38:47 alibrary
-Removing AliMC and AliMCProcess
-
-Revision 1.21 2002/11/21 16:09:44 cblume
-Change fgkRpadW to 1.0 cm for new pad plane
-
-Revision 1.20 2002/10/31 17:45:35 cblume
-New chamber geometry
-
-Revision 1.19 2002/10/14 14:57:43 hristov
-Merging the VirtualMC branch to the main development branch (HEAD)
-
-Revision 1.15.6.2 2002/07/24 10:09:30 alibrary
-Updating VirtualMC
-
-Revision 1.15.6.1 2002/06/10 15:28:58 hristov
-Merged with v3-08-02
-
-Revision 1.17 2002/04/05 13:20:12 cblume
-Remove const for CreateGeometry
-
-Revision 1.16 2002/03/28 14:59:07 cblume
-Coding conventions
-
-Revision 1.18 2002/06/12 09:54:35 cblume
-Update of tracking code provided by Sergei
-
-Revision 1.17 2002/04/05 13:20:12 cblume
-Remove const for CreateGeometry
-
-Revision 1.16 2002/03/28 14:59:07 cblume
-Coding conventions
-
-Revision 1.15 2002/02/11 14:21:16 cblume
-Update of the geometry. Get rid of MANY
-
-Revision 1.14 2001/11/06 17:19:41 cblume
-Add detailed geometry and simple simulator
-
-Revision 1.13 2001/08/02 08:30:45 cblume
-Fix positions of cooling material
-
-Revision 1.12 2001/05/21 16:45:47 hristov
-Last minute changes (C.Blume)
-
-Revision 1.11 2001/05/11 07:56:12 hristov
-Consistent declarations needed on Alpha
-
-Revision 1.10 2001/05/07 08:08:05 cblume
-Update of TRD code
-
-Revision 1.9 2001/03/27 12:48:33 cblume
-Correct for volume overlaps
-
-Revision 1.8 2001/03/13 09:30:35 cblume
-Update of digitization. Moved digit branch definition to AliTRD
-
-Revision 1.7 2001/02/14 18:22:26 cblume
-Change in the geometry of the padplane
-
-Revision 1.6 2000/11/01 14:53:20 cblume
-Merge with TRD-develop
-
-Revision 1.1.4.7 2000/10/16 01:16:53 cblume
-Changed timebin 0 to be the one closest to the readout
-
-Revision 1.1.4.6 2000/10/15 23:35:57 cblume
-Include geometry constants as static member
-
-Revision 1.1.4.5 2000/10/06 16:49:46 cblume
-Made Getters const
-
-Revision 1.1.4.4 2000/10/04 16:34:58 cblume
-Replace include files by forward declarations
-
-Revision 1.1.4.3 2000/09/22 14:43:40 cblume
-Allow the pad/timebin-dimensions to be changed after initialization
-
-Revision 1.1.4.2 2000/09/18 13:37:01 cblume
-Minor coding corrections
-
-Revision 1.5 2000/10/02 21:28:19 fca
-Removal of useless dependecies via forward declarations
-
-Revision 1.4 2000/06/08 18:32:58 cblume
-Make code compliant to coding conventions
-
-Revision 1.3 2000/06/07 16:25:37 cblume
-Try to remove compiler warnings on Sun and HP
-
-Revision 1.2 2000/05/08 16:17:27 cblume
-Merge TRD-develop
-
-Revision 1.1.4.1 2000/05/08 14:45:55 cblume
-Bug fix in RotateBack(). Geometry update
-
-Revision 1.4 2000/06/08 18:32:58 cblume
-Make code compliant to coding conventions
-
-Revision 1.3 2000/06/07 16:25:37 cblume
-Try to remove compiler warnings on Sun and HP
-
-Revision 1.2 2000/05/08 16:17:27 cblume
-Merge TRD-develop
-
-Revision 1.1.4.1 2000/05/08 14:45:55 cblume
-Bug fix in RotateBack(). Geometry update
-
-Revision 1.1 2000/02/28 19:00:44 cblume
-Add new TRD classes
-
-*/
+/* $Id$ */
///////////////////////////////////////////////////////////////////////////////
// //
}
+
+
+//_____________________________________________________________________________
+Bool_t AliTRDgeometry::Global2Local(Int_t mode, Float_t *local, Float_t *global, Int_t* index, AliTRDparameter *par) const
+{
+ //
+ // Converts local pad-coordinates (row,col,time) into
+ // global ALICE reference frame coordinates (x,y,z)
+ //
+ //index[0]=plane number
+ //index[1]=chamber number
+ //index[2]=sector number
+ //
+ // mode=0 - local coordinate in y, z, x - rotated global
+ // mode=2 - local coordinate in pad, and pad row, x - rotated global
+ //
+ if (!par) {
+ Error("Local2Global","No parameter defined\n");
+ return kFALSE;
+ }
+
+ //Int_t idet = GetDetector(iplan,icham,isect); // Detector number
+ Int_t idet = GetDetector(index[0],index[1],index[2]); // Detector number
+ Rotate(idet,global,local);
+ if (mode==0) return kTRUE;
+ //
+ // Float_t row0 = par->GetRow0(iplan,icham,isect);
+ //Float_t col0 = par->GetCol0(iplan);
+ //Float_t time0 = par->GetTime0(iplan);
+ //
+ // mode 1 to be implemented later
+ // calculate (x,y,z) position in time bin pad row pad
+ //
+ //rot[0] = time0 - (timeSlice - par->GetTimeBefore())
+ // * par->GetTimeBinSize();
+ //rot[1] = col0 + padCol
+ // * par->GetColPadSize(iplan);
+ //rot[2] = row0 + padRow
+ // * par->GetRowPadSize(iplan,icham,isect);
+
+ return kTRUE;
+
+}
+
+//___________________________________________________________________
+Bool_t AliTRDgeometry::Global2Detector(Float_t global[3], Int_t index[3], AliTRDparameter *par)
+{
+ //
+ //
+ //input = global position
+ //output =index
+ //index[0]=plane number
+ //index[1]=chamber number
+ //index[2]=sector number
+ Float_t fi;
+ //
+ fi = TMath::ATan2(global[1],global[0]);
+ if (fi<0) fi += 2*TMath::Pi();
+ index[2] = Int_t(TMath::Nint((fi - GetAlpha()/2.)/GetAlpha()));
+ //
+ //
+ Float_t locx = global[0] * fRotA11[index[2]] + global[1] * fRotA12[index[2]];
+ index[0] = 0;
+ Float_t max = locx-par->GetTime0(0);
+ for (Int_t iplane=1; iplane<fgkNplan;iplane++){
+ Float_t dist = TMath::Abs(locx-par->GetTime0(iplane));
+ if (dist < max){
+ index[0] = iplane;
+ max = dist;
+ }
+ }
+ Float_t theta = TMath::ATan2(global[2],locx);
+ index[1] = TMath::Nint(float(fgkNcham)*theta/(0.25*TMath::Pi()));
+ return kTRUE;
+
+}
+
+
//_____________________________________________________________________________
Bool_t AliTRDgeometry::Rotate(Int_t d, Float_t *pos, Float_t *rot) const
{
}
//_____________________________________________________________________________
-Int_t AliTRDgeometry::GetDetectorSec(const Int_t p, const Int_t c) const
+Int_t AliTRDgeometry::GetDetectorSec(Int_t p, Int_t c) const
{
//
// Convert plane / chamber into detector number for one single sector
}
//_____________________________________________________________________________
-Int_t AliTRDgeometry::GetDetector(const Int_t p, const Int_t c, const Int_t s) const
+Int_t AliTRDgeometry::GetDetector(Int_t p, Int_t c, Int_t s) const
{
//
// Convert plane / chamber / sector into detector number
}
//_____________________________________________________________________________
-Int_t AliTRDgeometry::GetPlane(const Int_t d) const
+Int_t AliTRDgeometry::GetPlane(Int_t d) const
{
//
// Reconstruct the plane number from the detector number
}
//_____________________________________________________________________________
-Int_t AliTRDgeometry::GetChamber(const Int_t d) const
+Int_t AliTRDgeometry::GetChamber(Int_t d) const
{
//
// Reconstruct the chamber number from the detector number
}
//_____________________________________________________________________________
-Int_t AliTRDgeometry::GetSector(const Int_t d) const
+Int_t AliTRDgeometry::GetSector(Int_t d) const
{
//
// Reconstruct the sector number from the detector number
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff