+/***************************************************************************
+ * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * *
+ * Author: The ALICE Off-line Project. *
+ * Contributors are mentioned in the code where appropriate. *
+ * *
+ * Permission to use, copy, modify and distribute this software and its *
+ * documentation strictly for non-commercial purposes is hereby granted *
+ * without fee, provided that the above copyright notice appears in all *
+ * copies and that both the copyright notice and this permission notice *
+ * appear in the supporting documentation. The authors make no claims *
+ * about the suitability of this software for any purpose. It is *
+ * provided "as is" without express or implied warranty. *
+ **************************************************************************/
//-----------------------------------------------------//
// //
// //
// //
//-----------------------------------------------------//
-#include "AliPMDUtility.h"
+#include "Riostream.h"
#include "TMath.h"
+#include "TText.h"
+#include "TLine.h"
+
#include <stdio.h>
+#include <math.h>
+
+#include "AliPMDUtility.h"
+
ClassImp(AliPMDUtility)
-AliPMDUtility::AliPMDUtility()
+AliPMDUtility::AliPMDUtility():
+ fPx(0.),
+ fPy(0.),
+ fPz(0.),
+ fTheta(0.),
+ fEta(0.),
+ fPhi(0.),
+ fWriteModule(1)
{
- fPx = 0.;
- fPy = 0.;
- fPz = 0.;
- fTheta = 0.;
- fEta = 0.;
- fPhi = 0.;
+ // Default constructor
}
-AliPMDUtility::AliPMDUtility(Float_t Px, Float_t Py, Float_t Pz)
+AliPMDUtility::AliPMDUtility(Float_t px, Float_t py, Float_t pz):
+ fPx(px),
+ fPy(py),
+ fPz(pz),
+ fTheta(0.),
+ fEta(0.),
+ fPhi(0.),
+ fWriteModule(1)
{
- fPx = Px;
- fPy = Py;
- fPz = Pz;
- fTheta = 0.;
- fEta = 0.;
- fPhi = 0.;
+ // Constructor
+}
+AliPMDUtility::AliPMDUtility(const AliPMDUtility &pmdutil):
+ fPx(pmdutil.fPx),
+ fPy(pmdutil.fPy),
+ fPz(pmdutil.fPz),
+ fTheta(pmdutil.fTheta),
+ fEta(pmdutil.fEta),
+ fPhi(pmdutil.fPhi),
+ fWriteModule(pmdutil.fWriteModule)
+{
+ // copy constructor
+}
+AliPMDUtility & AliPMDUtility::operator=(const AliPMDUtility &pmdutil)
+{
+ // assignment operator
+ if(this != &pmdutil)
+ {
+ fPx = pmdutil.fPx;
+ fPy = pmdutil.fPy;
+ fPz = pmdutil.fPz;
+ fTheta = pmdutil.fTheta;
+ fEta = pmdutil.fEta;
+ fPhi = pmdutil.fPhi;
+ fWriteModule = pmdutil.fWriteModule;
+ }
+ return *this;
}
-
AliPMDUtility::~AliPMDUtility()
{
+ // Default destructor
+}
+
+void AliPMDUtility::RectGeomCellPos(Int_t ism, Int_t xpad, Int_t ypad, Float_t &xpos, Float_t &ypos)
+{
+ // This routine finds the cell eta,phi for the new PMD rectangular
+ // geometry in ALICE
+ // Authors : Bedanga Mohanty and Dipak Mishra - 29.4.2003
+ // modified by B. K. Nandi for change of coordinate sys
+ //
+ // SMA ---> Supermodule Type A ( SM - 0)
+ // SMAR ---> Supermodule Type A ROTATED ( SM - 1)
+ // SMB ---> Supermodule Type B ( SM - 2)
+ // SMBR ---> Supermodule Type B ROTATED ( SM - 3)
+ //
+ // ism : Serial module number from 0 to 23 for each plane
+
+
+ // Corner positions (x,y) of the 24 unit moudles in ALICE PMD
+
+ double xcorner[24] =
+ {
+ 74.8833, 53.0045, 31.1255, //Type-A
+ 74.8833, 53.0045, 31.1255, //Type-A
+ -74.8833, -53.0044, -31.1255, //Type-AR
+ -74.8833, -53.0044, -31.1255, //Type-AR
+ 8.9165, -33.7471, //Type-B
+ 8.9165, -33.7471, //Type-B
+ 8.9165, -33.7471, //Type-B
+ -8.9165, 33.7471, //Type-BR
+ -8.9165, 33.7471, //Type-BR
+ -8.9165, 33.7471, //Type-BR
+ };
+
+
+ double ycorner[24] =
+ {
+ 86.225, 86.225, 86.225, //Type-A
+ 37.075, 37.075, 37.075, //Type-A
+ -86.225, -86.225, -86.225, //Type-AR
+ -37.075, -37.075, -37.075, //Type-AR
+ 86.225, 86.225, //Type-B
+ 61.075, 61.075, //Type-B
+ 35.925, 35.925, //Type-B
+ -86.225, -86.225, //Type-BR
+ -61.075, -61.075, //Type-BR
+ -35.925, -35.925 //Type-BR
+ };
+
+
+ const Float_t kSqroot3 = 1.73205; // sqrt(3.);
+ const Float_t kCellRadius = 0.25;
+
+ //
+ //Every even row of cells is shifted and placed
+ //in geant so this condition
+ //
+ Float_t cellRadius = 0.25;
+ Float_t shift = 0.0;
+ if(xpad%2 == 0)
+ {
+ shift = -cellRadius/2.0;
+ }
+ else
+ {
+ shift = 0.0;
+ }
+
+
+ if(ism < 6)
+ {
+ ypos = ycorner[ism] - (Float_t) xpad*kCellRadius*2.0 + shift;
+ xpos = xcorner[ism] - (Float_t) ypad*kSqroot3*kCellRadius;
+ }
+ else if(ism >=6 && ism < 12)
+ {
+ ypos = ycorner[ism] + (Float_t) xpad*kCellRadius*2.0 + shift;
+ xpos = xcorner[ism] + (Float_t) ypad*kSqroot3*kCellRadius;
+ }
+ else if(ism >= 12 && ism < 18)
+ {
+ ypos = ycorner[ism] - (Float_t) xpad*kCellRadius*2.0 + shift;
+ xpos = xcorner[ism] - (Float_t) ypad*kSqroot3*kCellRadius;
+ }
+ else if(ism >= 18 && ism < 24)
+ {
+ ypos = ycorner[ism] + (Float_t) xpad*kCellRadius*2.0 + shift;
+ xpos = xcorner[ism] + (Float_t) ypad*kSqroot3*kCellRadius;
+ }
}
-void AliPMDUtility::SetPxPyPz(Float_t Px, Float_t Py, Float_t Pz)
+void AliPMDUtility::RectGeomCellPos(Int_t ism, Float_t xpad, Float_t ypad, Float_t &xpos, Float_t &ypos)
{
- fPx = Px;
- fPy = Py;
- fPz = Pz;
+ // If the xpad and ypad inputs are float, then 0.5 is added to it
+ // to find the layer which is shifted.
+ // This routine finds the cell eta,phi for the new PMD rectangular
+ // geometry in ALICE
+ // Authors : Bedanga Mohanty and Dipak Mishra - 29.4.2003
+ // modified by B. K. Nnadi for change of coordinate sys
+ //
+ // SMA ---> Supermodule Type A ( SM - 0)
+ // SMAR ---> Supermodule Type A ROTATED ( SM - 1)
+ // SMB ---> Supermodule Type B ( SM - 2)
+ // SMBR ---> Supermodule Type B ROTATED ( SM - 3)
+ //
+ // ism : Serial Module number from 0 to 23 for each plane
+
+ // Corner positions (x,y) of the 24 unit moudles in ALICE PMD
+
+ double xcorner[24] =
+ {
+ 74.8833, 53.0045, 31.1255, //Type-A
+ 74.8833, 53.0045, 31.1255, //Type-A
+ -74.8833, -53.0044, -31.1255, //Type-AR
+ -74.8833, -53.0044, -31.1255, //Type-AR
+ 8.9165, -33.7471, //Type-B
+ 8.9165, -33.7471, //Type-B
+ 8.9165, -33.7471, //Type-B
+ -8.9165, 33.7471, //Type-BR
+ -8.9165, 33.7471, //Type-BR
+ -8.9165, 33.7471, //Type-BR
+ };
+
+
+
+ double ycorner[24] =
+ {
+ 86.225, 86.225, 86.225, //Type-A
+ 37.075, 37.075, 37.075, //Type-A
+ -86.225, -86.225, -86.225, //Type-AR
+ -37.075, -37.075, -37.075, //Type-AR
+ 86.225, 86.225, //Type-B
+ 61.075, 61.075, //Type-B
+ 35.925, 35.925, //Type-B
+ -86.225, -86.225, //Type-BR
+ -61.075, -61.075, //Type-BR
+ -35.925, -35.925 //Type-BR
+ };
+
+
+ const Float_t kSqroot3 = 1.73205; // sqrt(3.);
+ const Float_t kCellRadius = 0.25;
+
+ //
+ //Every even row of cells is shifted and placed
+ //in geant so this condition
+ //
+ Float_t cellRadius = 0.25;
+ Float_t shift = 0.0;
+ Int_t iirow = (Int_t) (xpad+0.5);
+ if(iirow%2 == 0)
+ {
+ shift = -cellRadius/2.0;
+ }
+ else
+ {
+ shift = 0.0;
+ }
+
+ if(ism < 6)
+ {
+ ypos = ycorner[ism] - xpad*kCellRadius*2.0 + shift;
+ xpos = xcorner[ism] - ypad*kSqroot3*kCellRadius;
+ }
+ else if(ism >=6 && ism < 12)
+ {
+ ypos = ycorner[ism] + xpad*kCellRadius*2.0 + shift;
+ xpos = xcorner[ism] + ypad*kSqroot3*kCellRadius;
+ }
+ else if(ism >= 12 && ism < 18)
+ {
+ ypos = ycorner[ism] - xpad*kCellRadius*2.0 + shift;
+ xpos = xcorner[ism] - ypad*kSqroot3*kCellRadius;
+ }
+ else if(ism >= 18 && ism < 24)
+ {
+ ypos = ycorner[ism] + xpad*kCellRadius*2.0 + shift;
+ xpos = xcorner[ism] + ypad*kSqroot3*kCellRadius;
+ }
+
}
+// -------------------------------------------------------- //
-void AliPMDUtility::SetXYZ(Float_t xPos, Float_t yPos, Float_t zPos)
+void AliPMDUtility::GenerateBoundaryPoints(Int_t ism, Float_t &x1ism,
+ Float_t &y1ism, Float_t &x2ism,
+ Float_t &y2ism)
{
- fPx = xPos;
- fPy = yPos;
- fPz = zPos;
+ // Generate bounding-box.
+
+
+ Float_t xism = 0, yism = 0;
+ Float_t dxism = 0., dyism = 0.;
+
+ const Float_t kRad = 0.25;
+ const Float_t kSqRoot3 = 1.732050808;
+ const Float_t kDia = 0.50;
+
+
+ const Double_t kXcorner[24] =
+ {
+ 74.8833, 53.0045, 31.1255, //Type-A
+ 74.8833, 53.0045, 31.1255, //Type-A
+ -74.8833, -53.0044, -31.1255, //Type-AR
+ -74.8833, -53.0044, -31.1255, //Type-AR
+ 8.9165, -33.7471, //Type-B
+ 8.9165, -33.7471, //Type-B
+ 8.9165, -33.7471, //Type-B
+ -8.9165, 33.7471, //Type-BR
+ -8.9165, 33.7471, //Type-BR
+ -8.9165, 33.7471, //Type-BR
+ };
+
+
+ const Double_t kYcorner[24] =
+ {
+ 86.225, 86.225, 86.225, //Type-A
+ 37.075, 37.075, 37.075, //Type-A
+ -86.225, -86.225, -86.225, //Type-AR
+ -37.075, -37.075, -37.075, //Type-AR
+ 86.225, 86.225, //Type-B
+ 61.075, 61.075, //Type-B
+ 35.925, 35.925, //Type-B
+ -86.225, -86.225, //Type-BR
+ -61.075, -61.075, //Type-BR
+ -35.925, -35.925 //Type-BR
+ };
+
+
+ if (ism > 23) ism -= 24;
+
+
+ if (ism < 6)
+ {
+ xism = kXcorner[ism] + kRad;
+ yism = kYcorner[ism] + kRad;
+ dxism = -kRad*kSqRoot3*48.;
+ dyism = -kDia*96. - kRad;
+ }
+ if (ism >= 6 && ism < 12)
+ {
+ xism = kXcorner[ism] - kRad;
+ yism = kYcorner[ism] - kRad;
+ dxism = kRad*kSqRoot3*48.;
+ dyism = kDia*96. + kRad;
+ }
+ if (ism >= 12 && ism < 18)
+ {
+ xism = kXcorner[ism] + kRad;
+ yism = kYcorner[ism] + kRad;
+ dxism = -kRad*kSqRoot3*96.;
+ dyism = -kDia*48. - kRad;
+ }
+ if (ism >= 18 && ism < 24)
+ {
+ xism = kXcorner[ism] - kRad;
+ yism = kYcorner[ism] - kRad;
+ dxism = kRad*kSqRoot3*96.;
+ dyism = kDia*48. + kRad;
+ }
+
+ x1ism = xism;
+ x2ism = xism + dxism;
+ y1ism = yism;
+ y2ism = yism + dyism;
+
+}
+// ------------------------------------------------------------------- //
+
+void AliPMDUtility::DrawPMDModule(Int_t idet)
+{
+
+ Float_t x1ism, x2ism, y1ism, y2ism;
+ Float_t deltaX, deltaY;
+
+ //TH2F *h2 = new TH2F("h2","Y vs. X",200,-100.,100.,200,-100.,100.);
+ //h2->Draw();
+
+ TLine t;
+ t.SetLineColor(2);
+
+ TText tt;
+ tt.SetTextColor(4);
+
+ Char_t smnumber[10];
+
+ for(Int_t ism=0; ism < 24; ism++)
+ {
+ GenerateBoundaryPoints(ism, x1ism, y1ism, x2ism, y2ism);
+ deltaX = (x2ism - x1ism)/2.;
+ deltaY = (y2ism - y1ism)/2.;
+ if (fWriteModule == 1)
+ {
+ if(idet == 0)
+ {
+ sprintf(smnumber,"%d",ism);
+ }
+ else if (idet == 1)
+ {
+ sprintf(smnumber,"%d",24+ism);
+ }
+ tt.DrawText(x1ism+deltaX,y1ism+deltaY,smnumber);
+ }
+ t.DrawLine(x1ism, y1ism, x1ism, y2ism);
+ t.DrawLine(x1ism, y1ism, x2ism, y1ism);
+ t.DrawLine(x2ism, y1ism, x2ism, y2ism);
+ t.DrawLine(x1ism, y2ism, x2ism, y2ism);
+ }
+
+}
+
+// ------------------------------------------------------------------- //
+
+
+void AliPMDUtility::ApplyVertexCorrection(Float_t vertex[], Float_t xpos,
+ Float_t ypos, Float_t zpos)
+{
+ // Not implemented
+ fPx = xpos - vertex[0];
+ fPy = ypos - vertex[1];
+ fPz = zpos - vertex[2];
+}
+void AliPMDUtility::ApplyAlignment()
+{
+ // Not implemented
+}
+
+void AliPMDUtility::SetPxPyPz(Float_t px, Float_t py, Float_t pz)
+{
+ fPx = px;
+ fPy = py;
+ fPz = pz;
+}
+
+void AliPMDUtility::SetXYZ(Float_t xpos, Float_t ypos, Float_t zpos)
+{
+ fPx = xpos;
+ fPy = ypos;
+ fPz = zpos;
+}
+void AliPMDUtility::SetWriteModule(Int_t wrmod)
+{
+ fWriteModule = wrmod;
}
void AliPMDUtility::CalculateEta()
{
pybypx = fPy/fPx;
if(pybypx < 0) pybypx = - pybypx;
phi1 = TMath::ATan(pybypx)*180./3.14159;
- if(fPx < 0 && fPy > 0) phi = 180 - phi1;
- if(fPx < 0 && fPy < 0) phi = 180 + phi1;
- if(fPx > 0 && fPy < 0) phi = 360 - phi1;
- if(fPx > 0 && fPy > 0) phi = phi1;
+
+ if(fPx > 0 && fPy > 0) phi = phi1; // 1st Quadrant
+ if(fPx < 0 && fPy > 0) phi = 180 - phi1; // 2nd Quadrant
+ if(fPx < 0 && fPy < 0) phi = 180 + phi1; // 3rd Quadrant
+ if(fPx > 0 && fPy < 0) phi = 360 - phi1; // 4th Quadrant
+
}
phi = phi*3.14159/180.;
theta = TMath::ATan2(rpxpy,fPz);
eta = -TMath::Log(TMath::Tan(0.5*theta));
- if(fPx==0)
+ if(fPx == 0)
{
if(fPy>0) phi = 90.;
if(fPy<0) phi = 270.;
pybypx = fPy/fPx;
if(pybypx < 0) pybypx = - pybypx;
phi1 = TMath::ATan(pybypx)*180./3.14159;
- if(fPx < 0 && fPy > 0) phi = 180 - phi1;
- if(fPx < 0 && fPy < 0) phi = 180 + phi1;
- if(fPx > 0 && fPy < 0) phi = 360 - phi1;
- if(fPx > 0 && fPy > 0) phi = phi1;
+ if(fPx > 0 && fPy > 0) phi = phi1; // 1st Quadrant
+ if(fPx < 0 && fPy > 0) phi = 180 - phi1; // 2nd Quadrant
+ if(fPx < 0 && fPy < 0) phi = 180 + phi1; // 3rd Quadrant
+ if(fPx > 0 && fPy < 0) phi = 360 - phi1; // 4th Quadrant
+
}
phi = phi*3.14159/180.;
fEta = eta;
fPhi = phi;
}
+void AliPMDUtility::CalculateXY(Float_t eta, Float_t phi, Float_t zpos)
+{
+ // Not implemented
+
+ // eta = -TMath::Log(TMath::Tan(0.5*theta));
+
+ Float_t xpos = 0., ypos = 0.;
+
+ // Float_t theta = 2.0*TMath::ATan(TMath::Log(-eta));
+
+ fEta = eta;
+ fPhi = phi;
+ fPx = xpos;
+ fPy = ypos;
+ fPz = zpos;
+}
Float_t AliPMDUtility::GetTheta() const
{
return fTheta;
{
return fPhi;
}
+Float_t AliPMDUtility::GetX() const
+{
+ return fPx;
+}
+Float_t AliPMDUtility::GetY() const
+{
+ return fPy;
+}
+Float_t AliPMDUtility::GetZ() const
+{
+ return fPz;
+}
+
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