* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.7 2001/02/03 00:00:30 nilsen
-New version of AliITSgeom and related files. Now uses automatic streamers,
-set up for new formatted .det file which includes detector information.
-Additional smaller modifications are still to come.
-
-Revision 1.5 2000/10/02 16:32:35 barbera
-Forward declaration added
-
-Revision 1.1.2.6 2000/10/02 15:52:05 barbera
-Forward declaration added
-
-Revision 1.4 2000/09/07 17:30:45 nilsen
-fixed a bug in SixAnglesFromMatrix.
+/* $Id$ */
-Revision 1.3 2000/09/05 14:25:50 nilsen
-Made fixes for HP compiler. All function parameter default values placed
-in .h file. Fixed the usual problem with HP comilers and the "for(Int_t i..."
-business. Replaced casting (Double_t [3][3]) to (Double_t (*)[3]) for HP.
-Lastly removed all "const" before function parameters which were 2 dim. arrays,
-because on HP root generates some strange code (?). Thanks Peter for the
-changes.
-
-Revision 1.2 2000/08/29 20:16:50 nilsen
-New class for ITS coordiante transformations used by AliITSgeom nearly
-exclusively.
-
-Revision 1.1.2.1 2000/06/04 16:32:31 Nilsen
-A new class to hold the matrix information needed by AliITSgeom.
+////////////////////////////////////////////////////////////////////////
+// This is the implementation file for AliITSgeomMatrix class. It
+// contains the routines to manipulate, setup, and queary the geometry
+// of a given ITS module. An ITS module may be one of at least three
+// ITS detector technologies, Silicon Pixel, Drift, or Strip Detectors,
+// and variations of these in size and/or layout. These routines let
+// one go between ALICE global coordiantes (cm) to a given modules
+// specific local coordinates (cm).
+////////////////////////////////////////////////////////////////////////
-*/
-#include <iostream.h>
-#include <iomanip.h>
+#include <Riostream.h>
#include <TMath.h>
#include <TBuffer.h>
+#include <TClass.h>
#include "AliITSgeomMatrix.h"
fid[i] = 0;
frot[i] = ftran[i] = 0.0;
for(j=0;j<3;j++) fm[i][j] = 0.0;
+ fCylR = fCylPhi = 0.0;
}// end for i
fm[0][0] = fm[1][1] = fm[2][2] = 1.0;
}
//----------------------------------------------------------------------
-AliITSgeomMatrix::AliITSgeomMatrix(const AliITSgeomMatrix &sourse){
+AliITSgeomMatrix::AliITSgeomMatrix(const AliITSgeomMatrix &sourse) :
+ TObject(sourse){
////////////////////////////////////////////////////////////////////////
-// The standard copy constructor. This make a full / proper copy of
+// The standard Copy constructor. This make a full / proper copy of
// this class.
////////////////////////////////////////////////////////////////////////
Int_t i,j;
this->fid[i] = sourse.fid[i];
this->frot[i] = sourse.frot[i];
this->ftran[i] = sourse.ftran[i];
+ this->fCylR = sourse.fCylR;
+ this->fCylPhi = sourse.fCylPhi;
for(j=0;j<3;j++) this->fm[i][j] = sourse.fm[i][j];
}// end for i
}
this->fid[i] = sourse.fid[i];
this->frot[i] = sourse.frot[i];
this->ftran[i] = sourse.ftran[i];
+ this->fCylR = sourse.fCylR;
+ this->fCylPhi = sourse.fCylPhi;
for(j=0;j<3;j++) this->fm[i][j] = sourse.fm[i][j];
}// end for i
}
//----------------------------------------------------------------------
-AliITSgeomMatrix::AliITSgeomMatrix(const Int_t idt,const Int_t id[3],
+AliITSgeomMatrix::AliITSgeomMatrix(Int_t idt,const Int_t id[3],
const Double_t rot[3],const Double_t tran[3]){
////////////////////////////////////////////////////////////////////////
// This is a constructor for the AliITSgeomMatrix class. The matrix is
*/
//End_Html
////////////////////////////////////////////////////////////////////////
- Int_t i;
+ Int_t i;
- fDetectorIndex = idt; // a value never defined.
- for(i=0;i<3;i++){
- fid[i] = id[i];
- frot[i] = rot[i];
- ftran[i] = tran[i];
- }// end for i
- this->MatrixFromAngle();
+ fDetectorIndex = idt; // a value never defined.
+ for(i=0;i<3;i++){
+ fid[i] = id[i];
+ frot[i] = rot[i];
+ ftran[i] = tran[i];
+ }// end for i
+ fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]);
+ fCylPhi = TMath::ATan2(ftran[1],ftran[0]);
+ if(fCylPhi<0.0) fCylPhi += TMath::Pi();
+ this->MatrixFromAngle();
}
//----------------------------------------------------------------------
-AliITSgeomMatrix::AliITSgeomMatrix(const Int_t idt, const Int_t id[3],
+AliITSgeomMatrix::AliITSgeomMatrix(Int_t idt, const Int_t id[3],
Double_t matrix[3][3],
const Double_t tran[3]){
////////////////////////////////////////////////////////////////////////
*/
//End_Html
////////////////////////////////////////////////////////////////////////
- Int_t i,j;
+ Int_t i,j;
- fDetectorIndex = idt; // a value never defined.
- for(i=0;i<3;i++){
- fid[i] = id[i];
- ftran[i] = tran[i];
- for(j=0;j<3;j++) fm[i][j] = matrix[i][j];
- }// end for i
- this->AngleFromMatrix();
+ fDetectorIndex = idt; // a value never defined.
+ for(i=0;i<3;i++){
+ fid[i] = id[i];
+ ftran[i] = tran[i];
+ for(j=0;j<3;j++) fm[i][j] = matrix[i][j];
+ }// end for i
+ fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]);
+ fCylPhi = TMath::ATan2(ftran[1],ftran[0]);
+ if(fCylPhi<0.0) fCylPhi += TMath::Pi();
+ this->AngleFromMatrix();
}
//----------------------------------------------------------------------
void AliITSgeomMatrix::SixAnglesFromMatrix(Double_t *ang){
}
//----------------------------------------------------------------------
AliITSgeomMatrix::AliITSgeomMatrix(const Double_t rotd[6]/*degrees*/,
- const Int_t idt,const Int_t id[3],
+ Int_t idt,const Int_t id[3],
const Double_t tran[3]){
////////////////////////////////////////////////////////////////////////
// This is a constructor for the AliITSgeomMatrix class. The matrix is
fid[i] = id[i];
ftran[i] = tran[i];
}// end for i
+ fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]);
+ fCylPhi = TMath::ATan2(ftran[1],ftran[0]);
+ if(fCylPhi<0.0) fCylPhi += TMath::Pi();
this->MatrixFromSixAngles(rotd);
}
//----------------------------------------------------------------------
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::GtoLPosition(const Double_t g0[3],Double_t l[3]){
+void AliITSgeomMatrix::GtoLPosition(const Double_t g0[3],Double_t l[3]) const {
////////////////////////////////////////////////////////////////////////
// Returns the local coordinates given the global coordinates [cm].
////////////////////////////////////////////////////////////////////////
return;
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::LtoGPosition(const Double_t l[3],Double_t g[3]){
+void AliITSgeomMatrix::LtoGPosition(const Double_t l[3],Double_t g[3]) const {
////////////////////////////////////////////////////////////////////////
// Returns the global coordinates given the local coordinates [cm].
////////////////////////////////////////////////////////////////////////
return;
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::GtoLMomentum(const Double_t g[3],Double_t l[3]){
+void AliITSgeomMatrix::GtoLMomentum(const Double_t g[3],Double_t l[3]) const{
////////////////////////////////////////////////////////////////////////
// Returns the local coordinates of the momentum given the global
// coordinates of the momentum. It transforms just like GtoLPosition
return;
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::LtoGMomentum(const Double_t l[3],Double_t g[3]){
+void AliITSgeomMatrix::LtoGMomentum(const Double_t l[3],Double_t g[3]) const {
////////////////////////////////////////////////////////////////////////
// Returns the Global coordinates of the momentum given the local
// coordinates of the momentum. It transforms just like LtoGPosition
return;
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::GtoLPositionError(Double_t g[3][3],
- Double_t l[3][3]){
+void AliITSgeomMatrix::GtoLPositionError( Double_t g[3][3],
+ Double_t l[3][3]) const {
////////////////////////////////////////////////////////////////////////
// Given an Uncertainty matrix in Global coordinates it is rotated so that
// its representation in local coordinates can be returned. There is no
////////////////////////////////////////////////////////////////////////
Int_t i,j,k,m;
- for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++)for(m=0;m<3;m++)
- l[i][m] = fm[j][i]*g[j][k]*fm[k][m];
- // g = R^t l R
+ for(i=0;i<3;i++)for(m=0;m<3;m++){
+ l[i][m] = 0.0;
+ for(j=0;j<3;j++)for(k=0;k<3;k++)
+ l[i][m] += fm[j][i]*g[j][k]*fm[k][m];
+ } // end for i,m
+ // g = R^t l R
return;
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::LtoGPositionError(Double_t l[3][3],
- Double_t g[3][3]){
+void AliITSgeomMatrix::LtoGPositionError( Double_t l[3][3],
+ Double_t g[3][3]) const {
////////////////////////////////////////////////////////////////////////
// Given an Uncertainty matrix in Local coordinates it is rotated so that
// its representation in global coordinates can be returned. There is no
////////////////////////////////////////////////////////////////////////
Int_t i,j,k,m;
- for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++)for(m=0;m<3;m++)
- g[i][m] = fm[i][j]*l[j][k]*fm[m][k];
- // g = R l R^t
+ for(i=0;i<3;i++)for(m=0;m<3;m++){
+ g[i][m] = 0.0;
+ for(j=0;j<3;j++)for(k=0;k<3;k++)
+ g[i][m] += fm[i][j]*l[j][k]*fm[m][k];
+ } // end for i,m
+ // g = R l R^t
return;
}
//----------------------------------------------------------------------
void AliITSgeomMatrix::GtoLPositionTracking(const Double_t g0[3],
- Double_t l[3]){
+ Double_t l[3]) const {
////////////////////////////////////////////////////////////////////////
// A slightly different coordinate system is used when tracking.
// This coordinate system is only relevant when the geometry represents
}
//----------------------------------------------------------------------
void AliITSgeomMatrix::LtoGPositionTracking(const Double_t l[3],
- Double_t g[3]){
+ Double_t g[3]) const {
////////////////////////////////////////////////////////////////////////
// A slightly different coordinate system is used when tracking.
// This coordinate system is only relevant when the geometry represents
}
//----------------------------------------------------------------------
void AliITSgeomMatrix::GtoLMomentumTracking(const Double_t g[3],
- Double_t l[3]){
+ Double_t l[3]) const {
////////////////////////////////////////////////////////////////////////
// A slightly different coordinate system is used when tracking.
// This coordinate system is only relevant when the geometry represents
l[2] = +l0[2];
} // end if
return;
- return;
}
//----------------------------------------------------------------------
void AliITSgeomMatrix::LtoGMomentumTracking(const Double_t l[3],
- Double_t g[3]){
+ Double_t g[3]) const {
////////////////////////////////////////////////////////////////////////
// A slightly different coordinate system is used when tracking.
// This coordinate system is only relevant when the geometry represents
return;
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::GtoLPositionErrorTracking(Double_t g[3][3],
- Double_t l[3][3]){
+void AliITSgeomMatrix::GtoLPositionErrorTracking( Double_t g[3][3],
+ Double_t l[3][3]) const {
////////////////////////////////////////////////////////////////////////
// A slightly different coordinate system is used when tracking.
// This coordinate system is only relevant when the geometry represents
//End_Html
////////////////////////////////////////////////////////////////////////
Int_t i,j,k,m;
- Double_t Rt[3][3];
- Double_t A0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}};
- Double_t A1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}};
+ Double_t rt[3][3];
+ Double_t a0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}};
+ Double_t a1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}};
if(fid[0]==1) for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++)
- Rt[i][k] = A0[i][j]*fm[j][k];
+ rt[i][k] = a0[i][j]*fm[j][k];
else for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++)
- Rt[i][k] = A1[i][j]*fm[j][k];
- for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++)for(m=0;m<3;m++)
- l[i][m] = Rt[j][i]*g[j][k]*Rt[k][m];
- // g = R^t l R
+ rt[i][k] = a1[i][j]*fm[j][k];
+ for(i=0;i<3;i++)for(m=0;m<3;m++){
+ l[i][m] = 0.0;
+ for(j=0;j<3;j++)for(k=0;k<3;k++)
+ l[i][m] += rt[j][i]*g[j][k]*rt[k][m];
+ } // end for i,m
+ // g = R^t l R
return;
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::LtoGPositionErrorTracking(Double_t l[3][3],
- Double_t g[3][3]){
+void AliITSgeomMatrix::LtoGPositionErrorTracking( Double_t l[3][3],
+ Double_t g[3][3]) const {
////////////////////////////////////////////////////////////////////////
// A slightly different coordinate system is used when tracking.
// This coordinate system is only relevant when the geometry represents
//End_Html
////////////////////////////////////////////////////////////////////////
Int_t i,j,k,m;
- Double_t Rt[3][3];
- Double_t A0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}};
- Double_t A1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}};
+ Double_t rt[3][3];
+ Double_t a0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}};
+ Double_t a1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}};
if(fid[0]==1) for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++)
- Rt[i][k] = A0[i][j]*fm[j][k];
+ rt[i][k] = a0[i][j]*fm[j][k];
else for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++)
- Rt[i][k] = A1[i][j]*fm[j][k];
- for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++)for(m=0;m<3;m++)
- g[i][m] = Rt[i][j]*l[j][k]*Rt[m][k];
- // g = R l R^t
+ rt[i][k] = a1[i][j]*fm[j][k];
+ for(i=0;i<3;i++)for(m=0;m<3;m++){
+ g[i][m] = 0.0;
+ for(j=0;j<3;j++)for(k=0;k<3;k++)
+ g[i][m] += rt[i][j]*l[j][k]*rt[m][k];
+ } // end for i,m
+ // g = R l R^t
return;
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::PrintTitles(ostream *os){
+void AliITSgeomMatrix::PrintTitles(ostream *os) const {
////////////////////////////////////////////////////////////////////////
// Standard output format for this class but it includes variable
// names and formatting that makes it easer to read.
return;
}
//----------------------------------------------------------------------
-void AliITSgeomMatrix::PrintComment(ostream *os){
+void AliITSgeomMatrix::PrintComment(ostream *os) const {
////////////////////////////////////////////////////////////////////////
// output format used by Print..
////////////////////////////////////////////////////////////////////////
// Standard output format for this class.
////////////////////////////////////////////////////////////////////////
Int_t i,j;
+#if defined __GNUC__
+#if __GNUC__ > 2
+ ios::fmtflags fmt;
+#else
Int_t fmt;
+#endif
+#else
+#if defined __ICC || defined __ECC || defined __xlC__
+ ios::fmtflags fmt;
+#else
+ Int_t fmt;
+#endif
+#endif
fmt = os->setf(ios::scientific); // set scientific floating point output
*os << fDetectorIndex << " ";
for(i=0;i<3;i++) *is >> ftran[i];
for(i=0;i<3;i++)for(j=0;j<3;j++) *is >> fm[i][j];
AngleFromMatrix(); // compute angles frot[].
+ fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]);
+ fCylPhi = TMath::ATan2(ftran[1],ftran[0]);
+ if(fCylPhi<0.0) fCylPhi += TMath::Pi();
return;
}
+//______________________________________________________________________
+void AliITSgeomMatrix::Streamer(TBuffer &R__b){
+ // Stream an object of class AliITSgeomMatrix.
+
+ if (R__b.IsReading()) {
+ AliITSgeomMatrix::Class()->ReadBuffer(R__b, this);
+ fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]);
+ fCylPhi = TMath::ATan2(ftran[1],ftran[0]);
+ this->AngleFromMatrix();
+ if(fCylPhi<0.0) fCylPhi += TMath::Pi();
+ } else {
+ AliITSgeomMatrix::Class()->WriteBuffer(R__b, this);
+ }
+}
+//______________________________________________________________________
+void AliITSgeomMatrix::SetTranslation(const Double_t tran[3]){
+ // Sets the translation vector and computes fCylR and fCylPhi.
+ for(Int_t i=0;i<3;i++) ftran[i] = tran[i];
+ fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]);
+ fCylPhi = TMath::ATan2(ftran[1],ftran[0]);
+ if(fCylPhi<0.0) fCylPhi += TMath::Pi();
+}
+
//----------------------------------------------------------------------
ostream &operator<<(ostream &os,AliITSgeomMatrix &p){
////////////////////////////////////////////////////////////////////////
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