GeometryTGeo.cxx

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
// ATTENTION: In opposite to old AliITSgeomTGeo, all indices start from 0, not from 1!!!
 
#include "FCTBase/GeometryTGeo.h"
#include "DetectorsBase/GeometryManager.h"
#include "MathUtils/Cartesian.h"
 
#include <fairlogger/Logger.h> // for LOG
 
#include <TGeoBBox.h>         // for TGeoBBox
#include <TGeoManager.h>      // for gGeoManager, TGeoManager
#include <TGeoPhysicalNode.h> // for TGeoPNEntry, TGeoPhysicalNode
#include <TGeoShape.h>        // for TGeoShape
#include <TMath.h>            // for Nint, ATan2, RadToDeg
#include <TString.h>          // for TString, Form
#include "TClass.h"           // for TClass
#include "TGeoMatrix.h"       // for TGeoHMatrix
#include "TGeoNode.h"         // for TGeoNode, TGeoNodeMatrix
#include "TGeoVolume.h"       // for TGeoVolume
#include "TMathBase.h"        // for Max
#include "TObjArray.h"        // for TObjArray
#include "TObject.h"          // for TObject
 
#include <cctype>  // for isdigit
#include <cstdio>  // for snprintf, NULL, printf
#include <cstring> // for strstr, strlen
 
using namespace TMath;
using namespace o2::fct;
using namespace o2::detectors;
 
ClassImp(o2::fct::GeometryTGeo);
 
std::unique_ptr<o2::fct::GeometryTGeo> GeometryTGeo::sInstance;
 
std::string GeometryTGeo::sVolumeName = "FCTV";          
std::string GeometryTGeo::sInnerVolumeName = "FCTInner"; 
std::string GeometryTGeo::sLayerName = "FCTLayer";       
std::string GeometryTGeo::sChipName = "FCTChip";         
std::string GeometryTGeo::sSensorName = "FCTSensor";     
 
//__________________________________________________________________________
GeometryTGeo::GeometryTGeo(bool build, int loadTrans) : o2::itsmft::GeometryTGeo(DetID::FCT)
{
  // default c-tor, if build is true, the structures will be filled and the transform matrices
  // will be cached
  if (sInstance) {
    LOG(fatal) << "Invalid use of public constructor: o2::fct::GeometryTGeo instance exists";
    // throw std::runtime_error("Invalid use of public constructor: o2::fct::GeometryTGeo instance exists");
  }
 
  if (build) {
    Build(loadTrans);
  }
}
 
//__________________________________________________________________________
void GeometryTGeo::Build(int loadTrans)
{
  if (isBuilt()) {
    LOG(warning) << "Already built";
    return; // already initialized
  }
 
  if (!gGeoManager) {
    // RSTODO: in future there will be a method to load matrices from the CDB
    LOG(fatal) << "Geometry is not loaded";
  }
 
  fillMatrixCache(loadTrans);
}
 
//__________________________________________________________________________
const char* GeometryTGeo::composeSymNameLayer(Int_t d, Int_t lr)
{
  return Form("%s/%s%d", composeSymNameFCT(d), getFCTLayerPattern(), lr);
}
 
//__________________________________________________________________________
const char* GeometryTGeo::composeSymNameChip(Int_t d, Int_t lr)
{
  return Form("%s/%s%d", composeSymNameLayer(d, lr), getFCTChipPattern(), lr);
}
 
//__________________________________________________________________________
const char* GeometryTGeo::composeSymNameSensor(Int_t d, Int_t lr)
{
  return Form("%s/%s%d", composeSymNameChip(d, lr), getFCTSensorPattern(), lr);
}
 
//__________________________________________________________________________
void GeometryTGeo::fillMatrixCache(int mask)
{
  // populate matrix cache for requested transformations
  //
}