//_____________________________________________________________________________
Bool_t AliTOFGeometry::IsInsideThePad(TGeoHMatrix mat, Float_t *pos, Float_t *dist3d) const
{
-//
-// Returns true if space point with coor pos (x,y,z) (cm) falls
-// inside pad with Detector Indices idet (iSect,iPlate,iStrip,iPadX,iPadZ)
-//
+ //
+ // Returns true if space point with coor pos (x,y,z) [cm] falls inside
+ // pad identified by the matrix mat. In case dist3d!=0, dist3d vector
+ // has been filled with the 3D distance between the impact point on
+ // the pad and the pad centre (in the reference frame of the TOF pad
+ // identified by the matrix mat).
+ //
const Float_t kPadDepth = 0.5; // heigth of Sensitive Layer
- Double_t vecg[3];
- vecg[0]=pos[0];
- vecg[1]=pos[1];
- vecg[2]=pos[2];
- Double_t veclr[3]={-1.,-1.,-1.};
- Double_t vecl[3]={-1.,-1.,-1.};
- mat.MasterToLocal(vecg,veclr);
- vecl[0]=veclr[1];
- vecl[1]=veclr[0];
- //take into account reflections
- vecl[2]=-veclr[2];
-
- Float_t xr = vecl[0];
- Float_t yr = vecl[1];
- Float_t zr = vecl[2];
- if (dist3d){
- dist3d[0] = vecl[0];
- dist3d[1] = vecl[1];
- dist3d[2] = vecl[2];
+ Double_t posg[3];
+ posg[0] = pos[0];
+ posg[1] = pos[1];
+ posg[2] = pos[2];
+
+ // from ALICE global reference system
+ // towards TOF pad reference system
+ Double_t posl[3] = {0., 0., 0.};
+ mat.MasterToLocal(posg,posl);
+
+ Float_t xr = posl[0];
+ Float_t yr = posl[1];
+ Float_t zr = posl[2];
+
+ Bool_t isInside = false;
+ if (TMath::Abs(yr)<= kPadDepth*0.5 &&
+ TMath::Abs(xr)<= fgkXPad*0.5 &&
+ TMath::Abs(zr)<= fgkZPad*0.5)
+ isInside = true;
+
+ if (dist3d) {
+ //Double_t padl[3] = {0., 0., 0.};
+ dist3d[0] = posl[0]/* - padl[0]*/;
+ dist3d[1] = posl[1]/* - padl[1]*/;
+ dist3d[2] = posl[2]/* - padl[2]*/;
+
+ /*
+ Double_t padg[3] = {0., 0., 0.};
+ // from TOF pad local reference system
+ // towards ALICE global reference system
+ TGeoHMatrix inverse = mat.Inverse();
+ inverse.MasterToLocal(padl,padg);
+
+ // returns the 3d distance
+ // between the impact point on the pad
+ // and the pad centre (in the ALICE global reference frame)
+ dist3d[0] = posg[0] - padg[0];
+ dist3d[1] = posg[1] - padg[1];
+ dist3d[2] = posg[2] - padg[2];
+ */
}
- Bool_t isInside=false;
- if(TMath::Abs(xr)<= kPadDepth*0.5 && TMath::Abs(yr)<= (fgkXPad*0.5) && TMath::Abs(zr)<= (fgkZPad*0.5))
- isInside=true;
return isInside;
}
Float_t posLocal[3];
for (Int_t ii=0; ii<3; ii++) posLocal[ii] = pos[ii];
-
+ AliDebug(1,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
+ posLocal[0],posLocal[1],posLocal[2]));
+
Int_t isector = GetSector(posLocal);
if(isector == -1){
//AliError("Detector Index could not be determined");
Int_t nstrips=0;
switch (iplate) {
case 0:
- nstrips=kNStripC;
- break;
case 4:
nstrips=kNStripC;
break;
case 1:
- nstrips=kNStripB;
- break;
case 3:
nstrips=kNStripB;
break;
90., (isector+0.5)*fgkPhiSec
};
Rotation(posLocal,angles);
+ AliDebug(1,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
+ posLocal[0],posLocal[1],posLocal[2]));
Float_t step[3] = {0., 0., (fgkRmax+fgkRmin)*0.5};
Translation(posLocal,step);
+ AliDebug(1,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
+ posLocal[0],posLocal[1],posLocal[2]));
// B071/B074/B075 = BTO1/2/3 reference frame -> FTOA = FLTA reference frame
angles[0] = 90.;
angles[5] =270.;
Rotation(posLocal,angles);
+ AliDebug(1,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
+ posLocal[0],posLocal[1],posLocal[2]));
// FTOA/B/C = FLTA/B/C reference frame -> FSTR reference frame
Int_t totStrip=0;
angles[5] = 270.;
}
Rotation(posLoc2,angles);
+ AliDebug(1,Form(" strip %2d: posLoc2[0] = %f, posLoc2[1] = %f, posLoc2[2] = %f ",
+ istrip, posLoc2[0],posLoc2[1],posLoc2[2]));
if ((TMath::Abs(posLoc2[0])<=klstripx*0.5) &&
(TMath::Abs(posLoc2[1])<=khstripy*0.5) &&
iStrip = istrip;
totStrip++;
for (Int_t jj=0; jj<3; jj++) posLocal[jj]=posLoc2[jj];
- //AliInfo(Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ", posLocal[0],posLocal[1],posLocal[2]));
+ AliDebug(2,Form(" posLocal[0] = %f, posLocal[1] = %f, posLocal[2] = %f ",
+ posLocal[0],posLocal[1],posLocal[2]));
- //AliInfo(Form(" GetAngles(%1i,%2i) = %f, pos[0] = %f, pos[1] = %f, pos[2] = %f", iplate, istrip, GetAngles(iplate,istrip), pos[0], pos[1], pos[2]));
+ AliDebug(2,Form(" GetAngles(%1i,%2i) = %f, pos[0] = %f, pos[1] = %f, pos[2] = %f",
+ iplate, istrip, GetAngles(iplate,istrip), pos[0], pos[1], pos[2]));
break;
}
||
(iplate!=2 && (istrip<0 || istrip>=kNStripC))
)
- printf("E-AliTOFGeometry::GetStripNumberPerSM: Wrong strip number in TOF (strip=%2d in the plate=%1d)!\n",istrip,iplate);
+ printf("E-AliTOFGeometry::GetStripNumberPerSM: Wrong strip number in TOF "
+ "(strip=%2d in the plate=%1d)!\n",istrip,iplate);
Int_t stripOffset = 0;
switch (iplate) {
return index;
}
+//-------------------------------------------------------------------------
+
+void AliTOFGeometry::PadRF2TrackingRF(Float_t *ctrackPos, Float_t *differenceT)
+{
+ //
+ // To convert the 3D distance ctrackPos, referred to the ALICE RF,
+ // into the 3D distance differenceT, referred to the tracking RF
+ // in case ctrakPos belongs to a TOF sensitive volume.
+ //
+
+ for (Int_t ii=0; ii<3; ii++) differenceT[ii] = 999.;
+
+ AliDebug(1,Form(" track position in ALICE global Ref. frame -> %f, %f, %f",
+ ctrackPos[0],ctrackPos[1],ctrackPos[2]));
+
+ Int_t detId[5] = {-1,-1,-1,-1,-1};
+
+ detId[0] = GetSector(ctrackPos);
+ if (detId[0]==-1) {
+ AliWarning(Form("This point does not belong to any TOF sector"));
+ return;
+ }
+
+ detId[1] = GetPlate(ctrackPos);
+ if (detId[1]==-1) {
+ AliWarning(Form("This point does not belong to any TOF module"));
+ return;
+ }
+
+ detId[2] = GetStrip(ctrackPos);
+ if (detId[2]==-1) {
+ AliWarning(Form("This point does not belong to any TOF strip"));
+ return;
+ }
+
+ detId[3] = GetPadZ(ctrackPos);
+ if (detId[3]==-1) {
+ AliWarning(Form("This point does not belong to any TOF pad-row"));
+ return;
+ }
+
+ detId[4] = GetPadX(ctrackPos);
+ if (detId[4]==-1) {
+ AliWarning(Form("This point does not belong to any TOF pad"));
+ return;
+ }
+
+
+ UShort_t alignableStripIndex =
+ GetAliSensVolIndex(detId[0],detId[1],detId[2]);
+ AliDebug(1,Form(" sector = %2d, plate = %1d, strip = %2d (padZ = %1d, padX = %2d) "
+ "---> stripIndex = %4d",
+ detId[0], detId[1], detId[2], detId[3], detId[4], alignableStripIndex));
+
+ // pad centre coordinates in the strip ref. frame
+ Double_t padCentreL[3] = {(detId[4]-AliTOFGeometry::NpadX()/2)*AliTOFGeometry::XPad()
+ +AliTOFGeometry::XPad()/2.,
+ 0.,
+ (detId[3]-AliTOFGeometry::NpadZ()/2)*AliTOFGeometry::XPad()
+ +AliTOFGeometry::XPad()/2.};
+ // pad centre coordinates in the strip tracking frame
+ Double_t padCentreT[3] = {0., 0., 0.};
+ TGeoHMatrix l2t = *AliGeomManager::GetTracking2LocalMatrix(alignableStripIndex);
+ l2t.MasterToLocal(padCentreL,padCentreT);
+
+
+ Char_t path[100];
+ // pad centre coordinates in its ref. frame
+ Double_t padCentreL2[3] = {0., 0., 0.};
+ // pad centre coordinates in the ALICE global ref. frame
+ Double_t padCentreG[3] = {0., 0., 0.};
+ GetVolumePath(detId,path);
+ gGeoManager->cd(path);
+ TGeoHMatrix g2l = *gGeoManager->GetCurrentMatrix();
+ TGeoHMatrix l2g = g2l.Inverse();
+ l2g.MasterToLocal(padCentreL2,padCentreG);
+
+
+ Char_t path2[100];
+ // strip centre coordinates in its ref. frame
+ Double_t stripCentreL[3] = {0., 0., 0.};
+ // strip centre coordinates in the ALICE global ref. frame
+ Double_t stripCentreG[3] = {0., 0., 0.};
+ GetVolumePath(detId[0],detId[1],detId[2],path2);
+ gGeoManager->cd(path2);
+ TGeoHMatrix g2lb = *gGeoManager->GetCurrentMatrix();
+ TGeoHMatrix l2gb = g2lb.Inverse();
+ l2gb.MasterToLocal(stripCentreL,stripCentreG);
+
+ TGeoHMatrix g2t = 0;
+ AliGeomManager::GetTrackingMatrix(alignableStripIndex, g2t);
+
+ // track position in the ALICE global ref. frame
+ Double_t posG[3];
+ for (Int_t ii=0; ii<3; ii++) posG[ii] = (Double_t)ctrackPos[ii];
+
+ // strip centre coordinates in the tracking ref. frame
+ Double_t stripCentreT[3] = {0., 0., 0.};
+ // track position in the tracking ref. frame
+ Double_t posT[3] = {0., 0., 0.};
+ g2t.MasterToLocal(posG,posT);
+ g2t.MasterToLocal(stripCentreG,stripCentreT);
+
+ for (Int_t ii=0; ii<3; ii++)
+ AliDebug(1,Form(" track position in ALICE global and tracking RFs -> posG[%d] = %f --- posT[%d] = %f",
+ ii, posG[ii], ii, posT[ii]));
+ for (Int_t ii=0; ii<3; ii++)
+ AliDebug(1,Form(" pad centre coordinates in its, the ALICE global and tracking RFs -> "
+ "padCentreL[%d] = %f --- padCentreG[%d] = %f --- padCentreT[%d] = %f",
+ ii, padCentreL[ii],
+ ii, padCentreG[ii],
+ ii, padCentreT[ii]));
+ for (Int_t ii=0; ii<3; ii++)
+ AliDebug(1,Form(" strip centre coordinates in its, the ALICE global and tracking RFs -> "
+ "stripCentreL[%d] = %f --- stripCentreG[%d] = %f --- stripCentreT[%d] = %f",
+ ii, stripCentreL[ii],
+ ii, stripCentreG[ii],
+ ii, stripCentreT[ii]));
+ for (Int_t ii=0; ii<3; ii++)
+ AliDebug(1,Form(" difference between the track position and the pad centre in the tracking RF "
+ "-> posT[%d]-padCentreT[%d] = %f",
+ ii,ii,
+ posT[ii]-padCentreT[ii]));
+
+ for (Int_t ii=0; ii<3; ii++) differenceT[ii] = (Float_t)(posT[ii]-padCentreT[ii]);
+
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff