ShipGeoUtil.h

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// SPDX-License-Identifier: LGPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright CERN for the benefit of the SHiP
// Collaboration
 
#ifndef SHIPDATA_SHIPGEOUTIL_H_
#define SHIPDATA_SHIPGEOUTIL_H_
 
#include "FairGeoBuilder.h"
#include "FairGeoInterface.h"
#include "FairGeoLoader.h"
#include "FairGeoMedia.h"
#include "TGeoManager.h"
#include "TGeoMedium.h"
 
namespace ShipGeo {
 
inline Int_t InitMedium(const char* name) {
  static FairGeoLoader* geoLoad = FairGeoLoader::Instance();
  static FairGeoInterface* geoFace = geoLoad->getGeoInterface();
  static FairGeoMedia* media = geoFace->getMedia();
  static FairGeoBuilder* geoBuild = geoLoad->getGeoBuilder();
 
  FairGeoMedium* ShipMedium = media->getMedium(name);
 
  if (!ShipMedium) {
    Fatal("ShipGeo::InitMedium", "Material %s not defined in media file.",
          name);
    return -1111;
  }
  TGeoMedium* medium = gGeoManager->GetMedium(name);
  if (medium != nullptr) return ShipMedium->getMediumIndex();
 
  return geoBuild->createMedium(ShipMedium);
}
 
}  // namespace ShipGeo
 
#endif  // SHIPDATA_SHIPGEOUTIL_H_