SBTEnvelope.h

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// SPDX-License-Identifier: LGPL-3.0-or-later
// Copyright (C) CERN for the benefit of the SHiP Collaboration
 
#pragma once
 
#include <vector>
 
class GeoMaterial;
class GeoPhysVol;
 
namespace SHiPGeometry {
 
struct SBTConfig;
 
struct HeliumPiece {
    double z_lo_mm = 0.0;
    double z_hi_mm = 0.0;
    double dx_lo_mm = 0.0;  
    double dx_hi_mm = 0.0;  
    double dy_lo_mm = 0.0;  
    double dy_hi_mm = 0.0;  
};
 
double innerFreeHalfX(const SBTConfig& cfg, double z_mm);
 
double innerFreeHalfY(const SBTConfig& cfg, double z_mm);
 
std::vector<double> envelopeKnots(const SBTConfig& cfg);
 
std::vector<HeliumPiece> heliumPieces(const SBTConfig& cfg);
 
void buildHelium(GeoPhysVol* container, const GeoMaterial* helium, const SBTConfig& cfg);
 
}  // namespace SHiPGeometry