//
// The geometry constants
//
- const Int_t AliTRDgeometry::fgkNsect = kNsect;
- const Int_t AliTRDgeometry::fgkNplan = kNplan;
- const Int_t AliTRDgeometry::fgkNcham = kNcham;
- const Int_t AliTRDgeometry::fgkNdet = kNdet;
+ const Int_t AliTRDgeometry::fgkNsect = kNsect;
+ const Int_t AliTRDgeometry::fgkNplan = kNplan;
+ const Int_t AliTRDgeometry::fgkNcham = kNcham;
+ const Int_t AliTRDgeometry::fgkNdet = kNdet;
//
// Dimensions of the detector
//
// Parameter of the BTRD mother volumes
- const Float_t AliTRDgeometry::fgkSheight = 77.9;
- const Float_t AliTRDgeometry::fgkSwidth1 = 94.881;
- const Float_t AliTRDgeometry::fgkSwidth2 = 122.353;
- const Float_t AliTRDgeometry::fgkSlength = 751.0;
+ const Float_t AliTRDgeometry::fgkSheight = 77.9;
+ const Float_t AliTRDgeometry::fgkSwidth1 = 94.881;
+ const Float_t AliTRDgeometry::fgkSwidth2 = 122.353;
+ const Float_t AliTRDgeometry::fgkSlength = 751.0;
// The super module side plates
- const Float_t AliTRDgeometry::fgkSMpltT = 0.2;
+ const Float_t AliTRDgeometry::fgkSMpltT = 0.2;
// Height of different chamber parts
// Radiator
- const Float_t AliTRDgeometry::fgkCraH = 4.8;
+ const Float_t AliTRDgeometry::fgkCraH = 4.8;
// Drift region
- const Float_t AliTRDgeometry::fgkCdrH = 3.0;
+ const Float_t AliTRDgeometry::fgkCdrH = 3.0;
// Amplification region
- const Float_t AliTRDgeometry::fgkCamH = 0.7;
+ const Float_t AliTRDgeometry::fgkCamH = 0.7;
// Readout
- const Float_t AliTRDgeometry::fgkCroH = 2.316;
+ const Float_t AliTRDgeometry::fgkCroH = 2.316;
// Total height
- const Float_t AliTRDgeometry::fgkCH = AliTRDgeometry::fgkCraH
- + AliTRDgeometry::fgkCdrH
- + AliTRDgeometry::fgkCamH
- + AliTRDgeometry::fgkCroH;
+ const Float_t AliTRDgeometry::fgkCH = AliTRDgeometry::fgkCraH
+ + AliTRDgeometry::fgkCdrH
+ + AliTRDgeometry::fgkCamH
+ + AliTRDgeometry::fgkCroH;
// Vertical spacing of the chambers
- const Float_t AliTRDgeometry::fgkVspace = 1.784;
+ const Float_t AliTRDgeometry::fgkVspace = 1.784;
// Horizontal spacing of the chambers
- const Float_t AliTRDgeometry::fgkHspace = 2.0;
+ const Float_t AliTRDgeometry::fgkHspace = 2.0;
// Radial distance of the first ROC to the outer plates of the SM
- const Float_t AliTRDgeometry::fgkVrocsm = 1.2;
+ const Float_t AliTRDgeometry::fgkVrocsm = 1.2;
// Thicknesses of different parts of the chamber frame
// Lower aluminum frame
- const Float_t AliTRDgeometry::fgkCalT = 0.4;
+ const Float_t AliTRDgeometry::fgkCalT = 0.4;
// Lower Wacosit frame sides
- const Float_t AliTRDgeometry::fgkCclsT = 0.21;
+ const Float_t AliTRDgeometry::fgkCclsT = 0.21;
// Lower Wacosit frame front
- const Float_t AliTRDgeometry::fgkCclfT = 1.0;
+ const Float_t AliTRDgeometry::fgkCclfT = 1.0;
// Thickness of glue around radiator
- const Float_t AliTRDgeometry::fgkCglT = 0.25;
+ const Float_t AliTRDgeometry::fgkCglT = 0.25;
// Upper Wacosit frame
- const Float_t AliTRDgeometry::fgkCcuT = 0.9;
+ const Float_t AliTRDgeometry::fgkCcuT = 0.9;
// Al frame of back panel
- const Float_t AliTRDgeometry::fgkCauT = 1.5;
+ const Float_t AliTRDgeometry::fgkCauT = 1.5;
// Additional Al of the lower chamber frame
- const Float_t AliTRDgeometry::fgkCalW = 1.11;
+ const Float_t AliTRDgeometry::fgkCalW = 1.11;
// Additional width of the readout chamber frames
- const Float_t AliTRDgeometry::fgkCroW = 0.9;
+ const Float_t AliTRDgeometry::fgkCroW = 0.9;
// Difference of outer chamber width and pad plane width
- const Float_t AliTRDgeometry::fgkCpadW = 0.0;
- const Float_t AliTRDgeometry::fgkRpadW = 1.0;
+ const Float_t AliTRDgeometry::fgkCpadW = 0.0;
+ const Float_t AliTRDgeometry::fgkRpadW = 1.0;
//
// Thickness of the the material layers
//
- const Float_t AliTRDgeometry::fgkMyThick = 0.005;
- const Float_t AliTRDgeometry::fgkRaThick = 0.3233;
- const Float_t AliTRDgeometry::fgkDrThick = AliTRDgeometry::fgkCdrH;
- const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkCamH;
- const Float_t AliTRDgeometry::fgkXeThick = AliTRDgeometry::fgkDrThick
- + AliTRDgeometry::fgkAmThick;
- const Float_t AliTRDgeometry::fgkWrThick = 0.0002;
- const Float_t AliTRDgeometry::fgkCuThick = 0.0072;
- const Float_t AliTRDgeometry::fgkGlThick = 0.05;
- const Float_t AliTRDgeometry::fgkSuThick = 0.0919;
- const Float_t AliTRDgeometry::fgkRcThick = 0.0058;
- const Float_t AliTRDgeometry::fgkRpThick = 0.0632;
- const Float_t AliTRDgeometry::fgkRoThick = 0.0028;
+ const Float_t AliTRDgeometry::fgkMyThick = 0.005;
+ const Float_t AliTRDgeometry::fgkRaThick = 0.3233;
+ const Float_t AliTRDgeometry::fgkDrThick = AliTRDgeometry::fgkCdrH;
+ const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkCamH;
+ const Float_t AliTRDgeometry::fgkXeThick = AliTRDgeometry::fgkDrThick
+ + AliTRDgeometry::fgkAmThick;
+ const Float_t AliTRDgeometry::fgkWrThick = 0.0002;
+ const Float_t AliTRDgeometry::fgkCuThick = 0.0072;
+ const Float_t AliTRDgeometry::fgkGlThick = 0.05;
+ const Float_t AliTRDgeometry::fgkSuThick = 0.0919;
+ const Float_t AliTRDgeometry::fgkRcThick = 0.0058;
+ const Float_t AliTRDgeometry::fgkRpThick = 0.0632;
+ const Float_t AliTRDgeometry::fgkRoThick = 0.0028;
//
// Position of the material layers
//
- //const Float_t AliTRDgeometry::fgkRaZpos = -1.50;
- const Float_t AliTRDgeometry::fgkRaZpos = 0.0;
- const Float_t AliTRDgeometry::fgkDrZpos = 2.4;
- const Float_t AliTRDgeometry::fgkAmZpos = 0.0;
- const Float_t AliTRDgeometry::fgkWrZpos = 0.0;
- const Float_t AliTRDgeometry::fgkCuZpos = -0.9995;
- const Float_t AliTRDgeometry::fgkGlZpos = -0.5;
- const Float_t AliTRDgeometry::fgkSuZpos = 0.0;
- const Float_t AliTRDgeometry::fgkRcZpos = 1.04;
- const Float_t AliTRDgeometry::fgkRpZpos = 1.0;
- const Float_t AliTRDgeometry::fgkRoZpos = 1.05;
+ const Float_t AliTRDgeometry::fgkRaZpos = 0.0;
+ const Float_t AliTRDgeometry::fgkDrZpos = 2.4;
+ const Float_t AliTRDgeometry::fgkAmZpos = 0.0;
+ const Float_t AliTRDgeometry::fgkWrZpos = 0.0;
+ const Float_t AliTRDgeometry::fgkCuZpos = -0.9995;
+ const Float_t AliTRDgeometry::fgkGlZpos = -0.5;
+ const Float_t AliTRDgeometry::fgkSuZpos = 0.0;
+ const Float_t AliTRDgeometry::fgkRcZpos = 1.04;
+ const Float_t AliTRDgeometry::fgkRpZpos = 1.0;
+ const Float_t AliTRDgeometry::fgkRoZpos = 1.05;
+
+ const Int_t AliTRDgeometry::fgkMCMmax = 16;
+ const Int_t AliTRDgeometry::fgkMCMrow = 4;
+ const Int_t AliTRDgeometry::fgkROBmaxC0 = 6;
+ const Int_t AliTRDgeometry::fgkROBmaxC1 = 8;
+ const Int_t AliTRDgeometry::fgkADCmax = 21;
+ const Int_t AliTRDgeometry::fgkTBmax = 60;
+ const Int_t AliTRDgeometry::fgkPadmax = 18;
+ const Int_t AliTRDgeometry::fgkColmax = 144;
+ const Int_t AliTRDgeometry::fgkRowmaxC0 = 12;
+ const Int_t AliTRDgeometry::fgkRowmaxC1 = 16;
const Double_t AliTRDgeometry::fgkTime0Base = 300.65;
- const Float_t AliTRDgeometry::fgkTime0[6] = { fgkTime0Base + 0 * (Cheight() + Cspace()),
- fgkTime0Base + 1 * (Cheight() + Cspace()),
- fgkTime0Base + 2 * (Cheight() + Cspace()),
- fgkTime0Base + 3 * (Cheight() + Cspace()),
- fgkTime0Base + 4 * (Cheight() + Cspace()),
- fgkTime0Base + 5 * (Cheight() + Cspace()) };
+ const Float_t AliTRDgeometry::fgkTime0[6] = { fgkTime0Base + 0 * (Cheight() + Cspace())
+ , fgkTime0Base + 1 * (Cheight() + Cspace())
+ , fgkTime0Base + 2 * (Cheight() + Cspace())
+ , fgkTime0Base + 3 * (Cheight() + Cspace())
+ , fgkTime0Base + 4 * (Cheight() + Cspace())
+ , fgkTime0Base + 5 * (Cheight() + Cspace())};
//_____________________________________________________________________________
AliTRDgeometry::AliTRDgeometry()
// The rotation matrix elements
Float_t phi = 0.0;
for (isect = 0; isect < fgkNsect; isect++) {
- phi = -2.0 * TMath::Pi() / (Float_t) fgkNsect * ((Float_t) isect + 0.5);
+ phi = 2.0 * TMath::Pi() / (Float_t) fgkNsect * ((Float_t) isect + 0.5);
fRotA11[isect] = TMath::Cos(phi);
fRotA12[isect] = TMath::Sin(phi);
fRotA21[isect] = TMath::Sin(phi);
// Position the frames of the chambers in the TRD mother volume
xpos = 0.0;
- ypos = - fClength[iplan][0] - fClength[iplan][1] - fClength[iplan][2]/2.0;
+ ypos = fClength[iplan][0] + fClength[iplan][1] + fClength[iplan][2]/2.0;
for (Int_t ic = 0; ic < icham; ic++) {
- ypos += fClength[iplan][ic];
+ ypos -= fClength[iplan][ic];
}
- ypos += fClength[iplan][icham]/2.0;
+ ypos -= fClength[iplan][icham]/2.0;
zpos = fgkVrocsm + fgkSMpltT + fgkCraH/2.0 + fgkCdrH/2.0 - fgkSheight/2.0
+ iplan * (fgkCH + fgkVspace);
// The lower aluminum frame, radiator + drift region
gMC->Gsvolu(cTagV,"BOX",idtmed[1302-1],parServ,kNparServ);
xpos = 0.0;
- ypos = - fClength[iplan][0] - fClength[iplan][1] - fClength[iplan][2]/2.0;
+ ypos = fClength[iplan][0] + fClength[iplan][1] + fClength[iplan][2]/2.0;
for (Int_t ic = 0; ic < icham; ic++) {
- ypos += fClength[iplan][ic];
+ ypos -= fClength[iplan][ic];
}
- ypos += fClength[iplan][icham]/2.0;
+ ypos -= fClength[iplan][icham]/2.0;
zpos = fgkVrocsm + fgkSMpltT + fgkCH + fgkVspace/2.0 - fgkSheight/2.0
+ iplan * (fgkCH + fgkVspace);
zpos -= 0.742/2.0;
}
+//_____________________________________________________________________________
+Int_t AliTRDgeometry::GetPadRowFromMCM(Int_t irob, Int_t imcm) const
+{
+
+ // return on which row this mcm sits
+
+ return fgkMCMrow*(irob/2) + imcm/fgkMCMrow;
+
+;
+}
+
+//_____________________________________________________________________________
+Int_t AliTRDgeometry::GetPadColFromADC(Int_t irob, Int_t imcm, Int_t iadc) const
+{
+ //
+ // return which pad is connected to this adc channel.
+ //
+ // ADC channels 2 to 19 are connected directly to a pad via PASA.
+ // ADC channels 0, 1 and 20 are not connected to the PASA on this MCM.
+ // So the mapping (for MCM 0 on ROB 0 at least) is
+ //
+ // ADC channel : 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
+ // Pad : x x 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 x
+ // Func. returns: 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 -1
+ //
+ // Here we assume that 21 ADC channels are transmitted. Maybe it will only be
+ // 18 later on!!!
+ //
+ // This function maps also correctly the channels that cross from MCM to MCM
+ // (ADC channels 0, 1, 20).
+ //
+
+ return (17-(iadc-2)) + (imcm%fgkMCMrow)*fgkPadmax + GetRobSide(irob)*fgkColmax/2;
+
+}
+
+//_____________________________________________________________________________
+Int_t AliTRDgeometry::GetMCMfromPad(Int_t irow, Int_t icol) const
+{
+
+ // return on which mcm this pad is
+
+ if ( irow < 0 || icol < 0 || irow > fgkRowmaxC1 || icol > fgkColmax ) return -1;
+
+ return (icol%(fgkColmax/2))/fgkPadmax + fgkMCMrow*(irow%fgkMCMrow);
+
+}
+
+//_____________________________________________________________________________
+Int_t AliTRDgeometry::GetROBfromPad(Int_t irow, Int_t icol) const
+{
+
+ // return on which rob this pad is
+
+ return (irow/fgkMCMrow)*2 + GetColSide(icol);
+
+}
+
+//_____________________________________________________________________________
+Int_t AliTRDgeometry::GetRobSide(Int_t irob) const
+{
+
+ // return on which side this rob sits (A side = 0, B side = 1)
+
+ if ( irob < 0 || irob >= fgkROBmaxC1 ) return -1;
+
+ return irob%2;
+
+}
+
+//_____________________________________________________________________________
+Int_t AliTRDgeometry::GetColSide(Int_t icol) const
+{
+
+ // return on which side this column sits (A side = 0, B side = 1)
+
+ if ( icol < 0 || icol >= fgkColmax ) return -1;
+
+ return icol/(fgkColmax/2);
+
+}
+
//_____________________________________________________________________________
AliTRDgeometry *AliTRDgeometry::GetGeometry(AliRunLoader *runLoader)
{
if (!geom) {
// If it is not in the file, try to get it from the run loader
- AliTRD *trd = (AliTRD *) runLoader->GetAliRun()->GetDetector("TRD");
- geom = trd->GetGeometry();
+ if (runLoader->GetAliRun()) {
+ AliTRD *trd = (AliTRD *) runLoader->GetAliRun()->GetDetector("TRD");
+ if (trd) geom = trd->GetGeometry();
+ }
}
if (!geom) {
AliErrorGeneral("AliTRDgeometry::GetGeometry","Geometry not found");
Bool_t AliTRDgeometry::ReadGeoMatrices()
{
//
- // Read geo matrices from current gGeoManager for each TRD sector
+ // Read the geo matrices from the current gGeoManager for each TRD detector
+ //
+ // This fill three arrays of TGeoHMatrix, ordered by detector numbers
+ // for fast access:
+ // fMatrixArray: Used for transformation local <-> global ???
+ // fMatrixCorrectionArray: Used for transformation local <-> tracking system
+ // fMatrixGeo: Alignable objects
//
if (!gGeoManager) {
fMatrixArray = new TObjArray(kNdet);
fMatrixCorrectionArray = new TObjArray(kNdet);
fMatrixGeo = new TObjArray(kNdet);
- AliAlignObjAngles o;
for (Int_t iLayer = AliAlignObj::kTRD1; iLayer <= AliAlignObj::kTRD6; iLayer++) {
for (Int_t iModule = 0; iModule < AliAlignObj::LayerSize(iLayer); iModule++) {
+ // Find the path to the different alignable objects (ROCs)
UShort_t volid = AliAlignObj::LayerToVolUID(iLayer,iModule);
const char *symname = AliAlignObj::SymName(volid);
TGeoPNEntry *pne = gGeoManager->GetAlignableEntry(symname);
if (!gGeoManager->cd(path)) {
return kFALSE;
}
- TGeoHMatrix *m = gGeoManager->GetCurrentMatrix();
- Int_t iLayerTRD = iLayer - AliAlignObj::kTRD1;
- Int_t isector = Nsect() - 1 - (iModule/Ncham());
- Int_t ichamber = Ncham() - 1 - (iModule%Ncham());
- Int_t lid = GetDetector(iLayerTRD,ichamber,isector);
-
- //
- // Local geo system z-x-y to x-y--z
- //
- fMatrixGeo->AddAt(new TGeoHMatrix(*m),lid);
-
- TGeoRotation mchange;
- mchange.RotateY(90);
- mchange.RotateX(90);
-
- TGeoHMatrix gMatrix(mchange.Inverse());
- gMatrix.MultiplyLeft(m);
- fMatrixArray->AddAt(new TGeoHMatrix(gMatrix),lid);
-
- //
- // Cluster transformation matrix
- //
- TGeoHMatrix rotMatrix(mchange.Inverse());
- rotMatrix.MultiplyLeft(m);
+
+ // Get the geo matrix of the current alignable object
+ // and add it to the corresponding list
+ TGeoHMatrix *matrix = gGeoManager->GetCurrentMatrix();
+ Int_t iplane = iLayer - AliAlignObj::kTRD1;
+ Int_t isector = iModule / Ncham();
+ Int_t ichamber = iModule % Ncham();
+ Int_t idet = GetDetector(iplane,ichamber,isector);
+ fMatrixGeo->AddAt(new TGeoHMatrix(* matrix),idet);
+
+ // Construct the geo matrix for the local <-> global transformation
+ // and add it to the corresponding list.
+ // In addition to the original geo matrix also a rotation of the
+ // kind z-x-y to x-y--z is applied.
+ TGeoRotation rotMatrixA;
+ rotMatrixA.RotateY(90);
+ rotMatrixA.RotateX(90);
+ TGeoHMatrix matrixGlobal(rotMatrixA.Inverse());
+ matrixGlobal.MultiplyLeft(matrix);
+ fMatrixArray->AddAt(new TGeoHMatrix(matrixGlobal),idet);
+
+ // Construct the geo matrix for the cluster transformation
+ // and add it to the corresponding list.
+ // In addition to the original geo matrix also a rotation of the
+ // kind x-y--z to z-x-y and a rotation by the sector angle is applied.
Double_t sectorAngle = 20.0 * (isector % 18) + 10.0;
- TGeoHMatrix rotSector;
+ TGeoHMatrix rotMatrixB(rotMatrixA.Inverse());
+ rotMatrixB.MultiplyLeft(matrix);
+ TGeoHMatrix rotSector;
rotSector.RotateZ(sectorAngle);
- rotMatrix.MultiplyLeft(&rotSector);
-
- fMatrixCorrectionArray->AddAt(new TGeoHMatrix(rotMatrix),lid);
+ rotMatrixB.MultiplyLeft(&rotSector);
+ fMatrixCorrectionArray->AddAt(new TGeoHMatrix(rotMatrixB),idet);
}
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff