/************************************************************************** * 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. * **************************************************************************/ /* $Id$ */ /////////////////////////////////////////////////////////////////////////////// // // // Class containing constant common parameters // // // // Request an instance with AliTRDCommonParam::Instance() // // Then request the needed values // // // /////////////////////////////////////////////////////////////////////////////// #include "AliRun.h" #include "AliTRDCommonParam.h" #include "AliTRDpadPlane.h" ClassImp(AliTRDCommonParam) AliTRDCommonParam* AliTRDCommonParam::fgInstance = 0; Bool_t AliTRDCommonParam::fgTerminated = kFALSE; //_ singleton implementation __________________________________________________ AliTRDCommonParam* AliTRDCommonParam::Instance() { // // Singleton implementation // Returns an instance of this class, it is created if neccessary // if (fgTerminated != kFALSE) return 0; if (fgInstance == 0) fgInstance = new AliTRDCommonParam(); return fgInstance; } void AliTRDCommonParam::Terminate() { // // Singleton implementation // Deletes the instance of this class and sets the terminated flag, instances cannot be requested anymore // This function can be called several times. // fgTerminated = kTRUE; if (fgInstance != 0) { delete fgInstance; fgInstance = 0; } } //_____________________________________________________________________________ AliTRDCommonParam::AliTRDCommonParam() { // // constructor // fField = 0.0; fPRFbin = 0; fPRFlo = 0.0; fPRFhi = 0.0; fPRFwid = 0.0; fPRFpad = 0; fPRFsmp = 0; fExBOn = kFALSE; fPRFOn = kFALSE; fPadPlaneArray = 0; Init(); }; //_____________________________________________________________________________ void AliTRDCommonParam::Init() { // // constructor helper // // E x B effects fExBOn = kTRUE; // The pad response function fPRFOn = kTRUE; // The magnetic field strength in Tesla Double_t x[3] = { 0.0, 0.0, 0.0 }; Double_t b[3]; gAlice->Field(x,b); // b[] is in kilo Gauss fField = b[2] * 0.1; // Tesla // Create the sampled PRF SamplePRF(); // ---------------------------------------------------------------------------- // The pad planes // ---------------------------------------------------------------------------- fPadPlaneArray = new TObjArray(kNplan * kNcham); for (Int_t iplan = 0; iplan < kNplan; iplan++) { for (Int_t icham = 0; icham < kNcham; icham++) { Int_t ipp = iplan + icham * kNplan; fPadPlaneArray->AddAt(new AliTRDpadPlane(iplan,icham),ipp); } } } //_____________________________________________________________________________ AliTRDCommonParam::~AliTRDCommonParam() { // // destructor // if (fPRFsmp) { delete [] fPRFsmp; fPRFsmp = 0; } if (fPadPlaneArray) { fPadPlaneArray->Delete(); delete fPadPlaneArray; fPadPlaneArray = 0; } }; //_____________________________________________________________________________ AliTRDCommonParam::AliTRDCommonParam(const AliTRDCommonParam &p):TObject(p) { // // copy constructor // ((AliTRDCommonParam &) p).Copy(*this); } //_____________________________________________________________________________ AliTRDCommonParam &AliTRDCommonParam::operator=(const AliTRDCommonParam &p) { // // Assignment operator // if (this != &p) ((AliTRDCommonParam &) p).Copy(*this); return *this; } //_____________________________________________________________________________ void AliTRDCommonParam::Copy(TObject &p) const { // // Copy function // AliTRDCommonParam* target = dynamic_cast (&p); if (!target) return; target->fExBOn = fExBOn; target->fPRFOn = fPRFOn; target->fPRFbin = fPRFbin; target->fPRFlo = fPRFlo; target->fPRFhi = fPRFhi; target->fPRFwid = fPRFwid; target->fPRFpad = fPRFpad; if (target->fPRFsmp) delete [] target->fPRFsmp; target->fPRFsmp = new Float_t[fPRFbin]; for (Int_t iBin = 0; iBin < fPRFbin; iBin++) { target->fPRFsmp[iBin] = fPRFsmp[iBin]; } } //_____________________________________________________________________________ void AliTRDCommonParam::SamplePRF() { // // Samples the pad response function // const Int_t kPRFbin = 61; Float_t prf[kNplan][kPRFbin] = { {2.9037e-02, 3.3608e-02, 3.9020e-02, 4.5292e-02, 5.2694e-02, 6.1362e-02, 7.1461e-02, 8.3362e-02, 9.7063e-02, 1.1307e-01, 1.3140e-01, 1.5235e-01, 1.7623e-01, 2.0290e-01, 2.3294e-01, 2.6586e-01, 3.0177e-01, 3.4028e-01, 3.8077e-01, 4.2267e-01, 4.6493e-01, 5.0657e-01, 5.4655e-01, 5.8397e-01, 6.1767e-01, 6.4744e-01, 6.7212e-01, 6.9188e-01, 7.0627e-01, 7.1499e-01, 7.1851e-01, 7.1499e-01, 7.0627e-01, 6.9188e-01, 6.7212e-01, 6.4744e-01, 6.1767e-01, 5.8397e-01, 5.4655e-01, 5.0657e-01, 4.6493e-01, 4.2267e-01, 3.8077e-01, 3.4028e-01, 3.0177e-01, 2.6586e-01, 2.3294e-01, 2.0290e-01, 1.7623e-01, 1.5235e-01, 1.3140e-01, 1.1307e-01, 9.7063e-02, 8.3362e-02, 7.1461e-02, 6.1362e-02, 5.2694e-02, 4.5292e-02, 3.9020e-02, 3.3608e-02, 2.9037e-02}, {2.5478e-02, 2.9695e-02, 3.4655e-02, 4.0454e-02, 4.7342e-02, 5.5487e-02, 6.5038e-02, 7.6378e-02, 8.9696e-02, 1.0516e-01, 1.2327e-01, 1.4415e-01, 1.6794e-01, 1.9516e-01, 2.2573e-01, 2.5959e-01, 2.9694e-01, 3.3719e-01, 3.7978e-01, 4.2407e-01, 4.6889e-01, 5.1322e-01, 5.5569e-01, 5.9535e-01, 6.3141e-01, 6.6259e-01, 6.8882e-01, 7.0983e-01, 7.2471e-01, 7.3398e-01, 7.3761e-01, 7.3398e-01, 7.2471e-01, 7.0983e-01, 6.8882e-01, 6.6259e-01, 6.3141e-01, 5.9535e-01, 5.5569e-01, 5.1322e-01, 4.6889e-01, 4.2407e-01, 3.7978e-01, 3.3719e-01, 2.9694e-01, 2.5959e-01, 2.2573e-01, 1.9516e-01, 1.6794e-01, 1.4415e-01, 1.2327e-01, 1.0516e-01, 8.9696e-02, 7.6378e-02, 6.5038e-02, 5.5487e-02, 4.7342e-02, 4.0454e-02, 3.4655e-02, 2.9695e-02, 2.5478e-02}, {2.2363e-02, 2.6233e-02, 3.0782e-02, 3.6140e-02, 4.2535e-02, 5.0157e-02, 5.9197e-02, 6.9900e-02, 8.2707e-02, 9.7811e-02, 1.1548e-01, 1.3601e-01, 1.5998e-01, 1.8739e-01, 2.1840e-01, 2.5318e-01, 2.9182e-01, 3.3373e-01, 3.7837e-01, 4.2498e-01, 4.7235e-01, 5.1918e-01, 5.6426e-01, 6.0621e-01, 6.4399e-01, 6.7700e-01, 7.0472e-01, 7.2637e-01, 7.4206e-01, 7.5179e-01, 7.5551e-01, 7.5179e-01, 7.4206e-01, 7.2637e-01, 7.0472e-01, 6.7700e-01, 6.4399e-01, 6.0621e-01, 5.6426e-01, 5.1918e-01, 4.7235e-01, 4.2498e-01, 3.7837e-01, 3.3373e-01, 2.9182e-01, 2.5318e-01, 2.1840e-01, 1.8739e-01, 1.5998e-01, 1.3601e-01, 1.1548e-01, 9.7811e-02, 8.2707e-02, 6.9900e-02, 5.9197e-02, 5.0157e-02, 4.2535e-02, 3.6140e-02, 3.0782e-02, 2.6233e-02, 2.2363e-02}, {1.9635e-02, 2.3167e-02, 2.7343e-02, 3.2293e-02, 3.8224e-02, 4.5335e-02, 5.3849e-02, 6.4039e-02, 7.6210e-02, 9.0739e-02, 1.0805e-01, 1.2841e-01, 1.5216e-01, 1.7960e-01, 2.1099e-01, 2.4671e-01, 2.8647e-01, 3.2996e-01, 3.7660e-01, 4.2547e-01, 4.7536e-01, 5.2473e-01, 5.7215e-01, 6.1632e-01, 6.5616e-01, 6.9075e-01, 7.1939e-01, 7.4199e-01, 7.5838e-01, 7.6848e-01, 7.7227e-01, 7.6848e-01, 7.5838e-01, 7.4199e-01, 7.1939e-01, 6.9075e-01, 6.5616e-01, 6.1632e-01, 5.7215e-01, 5.2473e-01, 4.7536e-01, 4.2547e-01, 3.7660e-01, 3.2996e-01, 2.8647e-01, 2.4671e-01, 2.1099e-01, 1.7960e-01, 1.5216e-01, 1.2841e-01, 1.0805e-01, 9.0739e-02, 7.6210e-02, 6.4039e-02, 5.3849e-02, 4.5335e-02, 3.8224e-02, 3.2293e-02, 2.7343e-02, 2.3167e-02, 1.9635e-02}, {1.7224e-02, 2.0450e-02, 2.4286e-02, 2.8860e-02, 3.4357e-02, 4.0979e-02, 4.8966e-02, 5.8612e-02, 7.0253e-02, 8.4257e-02, 1.0102e-01, 1.2094e-01, 1.4442e-01, 1.7196e-01, 2.0381e-01, 2.4013e-01, 2.8093e-01, 3.2594e-01, 3.7450e-01, 4.2563e-01, 4.7796e-01, 5.2991e-01, 5.7974e-01, 6.2599e-01, 6.6750e-01, 7.0344e-01, 7.3329e-01, 7.5676e-01, 7.7371e-01, 7.8410e-01, 7.8793e-01, 7.8410e-01, 7.7371e-01, 7.5676e-01, 7.3329e-01, 7.0344e-01, 6.6750e-01, 6.2599e-01, 5.7974e-01, 5.2991e-01, 4.7796e-01, 4.2563e-01, 3.7450e-01, 3.2594e-01, 2.8093e-01, 2.4013e-01, 2.0381e-01, 1.7196e-01, 1.4442e-01, 1.2094e-01, 1.0102e-01, 8.4257e-02, 7.0253e-02, 5.8612e-02, 4.8966e-02, 4.0979e-02, 3.4357e-02, 2.8860e-02, 2.4286e-02, 2.0450e-02, 1.7224e-02}, {1.5096e-02, 1.8041e-02, 2.1566e-02, 2.5793e-02, 3.0886e-02, 3.7044e-02, 4.4515e-02, 5.3604e-02, 6.4668e-02, 7.8109e-02, 9.4364e-02, 1.1389e-01, 1.3716e-01, 1.6461e-01, 1.9663e-01, 2.3350e-01, 2.7527e-01, 3.2170e-01, 3.7214e-01, 4.2549e-01, 4.8024e-01, 5.3460e-01, 5.8677e-01, 6.3512e-01, 6.7838e-01, 7.1569e-01, 7.4655e-01, 7.7071e-01, 7.8810e-01, 7.9871e-01, 8.0255e-01, 7.9871e-01, 7.8810e-01, 7.7071e-01, 7.4655e-01, 7.1569e-01, 6.7838e-01, 6.3512e-01, 5.8677e-01, 5.3460e-01, 4.8024e-01, 4.2549e-01, 3.7214e-01, 3.2170e-01, 2.7527e-01, 2.3350e-01, 1.9663e-01, 1.6461e-01, 1.3716e-01, 1.1389e-01, 9.4364e-02, 7.8109e-02, 6.4668e-02, 5.3604e-02, 4.4515e-02, 3.7044e-02, 3.0886e-02, 2.5793e-02, 2.1566e-02, 1.8041e-02, 1.5096e-02}}; // More sampling precision with linear interpolation fPRFlo = -1.5; fPRFhi = 1.5; Float_t pad[kPRFbin]; Int_t sPRFbin = kPRFbin; Float_t sPRFwid = (fPRFhi - fPRFlo) / ((Float_t) sPRFbin); for (Int_t iPad = 0; iPad < sPRFbin; iPad++) { pad[iPad] = ((Float_t) iPad + 0.5) * sPRFwid + fPRFlo; } fPRFbin = 500; fPRFwid = (fPRFhi - fPRFlo) / ((Float_t) fPRFbin); fPRFpad = ((Int_t) (1.0 / fPRFwid)); if (fPRFsmp) delete [] fPRFsmp; fPRFsmp = new Float_t[kNplan*fPRFbin]; Int_t ipos1; Int_t ipos2; Float_t diff; for (Int_t iPla = 0; iPla < kNplan; iPla++) { for (Int_t iBin = 0; iBin < fPRFbin; iBin++) { Float_t bin = (((Float_t) iBin) + 0.5) * fPRFwid + fPRFlo; ipos1 = ipos2 = 0; diff = 0; do { diff = bin - pad[ipos2++]; } while ((diff > 0) && (ipos2 < kPRFbin)); if (ipos2 == kPRFbin) { fPRFsmp[iPla*fPRFbin+iBin] = prf[iPla][ipos2-1]; } else if (ipos2 == 1) { fPRFsmp[iPla*fPRFbin+iBin] = prf[iPla][ipos2-1]; } else { ipos2--; if (ipos2 >= kPRFbin) ipos2 = kPRFbin - 1; ipos1 = ipos2 - 1; fPRFsmp[iPla*fPRFbin+iBin] = prf[iPla][ipos2] + diff * (prf[iPla][ipos2] - prf[iPla][ipos1]) / sPRFwid; } } } } //_____________________________________________________________________________ Int_t AliTRDCommonParam::PadResponse(Double_t signal, Double_t dist , Int_t plane, Double_t *pad) const { // // Applies the pad response // Int_t iBin = ((Int_t) (( - dist - fPRFlo) / fPRFwid)); Int_t iOff = plane * fPRFbin; Int_t iBin0 = iBin - fPRFpad + iOff; Int_t iBin1 = iBin + iOff; Int_t iBin2 = iBin + fPRFpad + iOff; pad[0] = 0.0; pad[1] = 0.0; pad[2] = 0.0; if ((iBin1 >= 0) && (iBin1 < (fPRFbin*kNplan))) { if (iBin0 >= 0) { pad[0] = signal * fPRFsmp[iBin0]; } pad[1] = signal * fPRFsmp[iBin1]; if (iBin2 < (fPRFbin*kNplan)) { pad[2] = signal * fPRFsmp[iBin2]; } return 1; } else { return 0; } } //_____________________________________________________________________________ AliTRDpadPlane *AliTRDCommonParam::GetPadPlane(Int_t p, Int_t c) const { // // Returns the pad plane for a given plane

and chamber number // Int_t ipp = p + c * kNplan; return ((AliTRDpadPlane *) fPadPlaneArray->At(ipp)); } //_____________________________________________________________________________ Int_t AliTRDCommonParam::GetRowMax(Int_t p, Int_t c, Int_t /*s*/) const { // // Returns the number of rows on the pad plane // return GetPadPlane(p,c)->GetNrows(); } //_____________________________________________________________________________ Int_t AliTRDCommonParam::GetColMax(Int_t p) const { // // Returns the number of rows on the pad plane // return GetPadPlane(p,0)->GetNcols(); } //_____________________________________________________________________________ Double_t AliTRDCommonParam::GetRow0(Int_t p, Int_t c, Int_t /*s*/) const { // // Returns the position of the border of the first pad in a row // return GetPadPlane(p,c)->GetRow0(); } //_____________________________________________________________________________ Double_t AliTRDCommonParam::GetCol0(Int_t p) const { // // Returns the position of the border of the first pad in a column // return GetPadPlane(p,0)->GetCol0(); }