TGeoOCCTSolid.hh

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// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2026 G4OCCT Contributors
 
 
#ifndef G4OCCT_TGeoOCCTSolid_hh
#define G4OCCT_TGeoOCCTSolid_hh
 
#ifndef G4OCCT_WITH_ROOT_TGEO_SUPPORT
#error "G4OCCT/TGeoOCCTSolid.hh requires BUILD_ROOT_TGEO_SUPPORT=ON when G4OCCT is built."
#endif
 
#include <TGeoShape.h>
 
#include <cstdint>
#include <memory>
#include <limits>
#include <string>
 
class TGeoBBox;
class TGeoTessellated;
class TopoDS_Shape;
class TGeoMatrix;
class TBuffer3D;
class TGeoVolume;
 
namespace g4occt::detail {
class TGeoOCCTSolidBridge;
}
 
class TGeoOCCTSolid : public TGeoShape {
public:
  TGeoOCCTSolid();
  TGeoOCCTSolid(const char* name, const TopoDS_Shape& shape);
  ~TGeoOCCTSolid() override;
 
  TGeoOCCTSolid(const TGeoOCCTSolid&)            = delete;
  TGeoOCCTSolid& operator=(const TGeoOCCTSolid&) = delete;
 
  static TGeoOCCTSolid* FromSTEP(const char* name, const std::string& path);
 
  Double_t Capacity() const override;
  void ComputeBBox() override;
  void ComputeNormal(const Double_t* point, const Double_t* dir, Double_t* norm) const override;
  Bool_t Contains(const Double_t* point) const override;
  Bool_t CouldBeCrossed(const Double_t* point, const Double_t* dir) const override;
  Int_t DistancetoPrimitive(Int_t px, Int_t py) override;
  Double_t DistFromInside(const Double_t* point, const Double_t* dir, Int_t iact = 1,
                          Double_t step  = TGeoShape::Big(),
                          Double_t* safe = nullptr) const override;
  Double_t DistFromOutside(const Double_t* point, const Double_t* dir, Int_t iact = 1,
                           Double_t step  = TGeoShape::Big(),
                           Double_t* safe = nullptr) const override;
  TGeoVolume* Divide(TGeoVolume* voldiv, const char* divname, Int_t iaxis, Int_t ndiv,
                     Double_t start, Double_t step) override;
  const char* GetAxisName(Int_t iaxis) const override;
  Double_t GetAxisRange(Int_t iaxis, Double_t& xlo, Double_t& xhi) const override;
  void GetBoundingCylinder(Double_t* param) const override;
  const TBuffer3D& GetBuffer3D(Int_t reqSections, Bool_t localFrame) const override;
  Int_t GetByteCount() const override;
  Bool_t GetPointsOnSegments(Int_t npoints, Double_t* array) const override;
  Int_t GetFittingBox(const TGeoBBox* parambox, TGeoMatrix* mat, Double_t& dx, Double_t& dy,
                      Double_t& dz) const override;
  void GetMeshNumbers(Int_t& nvert, Int_t& nsegs, Int_t& npols) const override;
  TGeoShape* GetMakeRuntimeShape(TGeoShape* mother, TGeoMatrix* mat) const override;
  Bool_t IsCylType() const override;
  Bool_t IsValidBox() const override;
  void InspectShape() const override;
  TBuffer3D* MakeBuffer3D() const override;
  Double_t Safety(const Double_t* point, Bool_t in = kTRUE) const override;
  void SetDimensions(Double_t* param) override;
  void SetPoints(Double_t* points) const override;
  void SetPoints(Float_t* points) const override;
  void SetSegsAndPols(TBuffer3D& buff) const override;
  void Sizeof3D() const override;
 
  const TopoDS_Shape& GetOCCTShape() const;
  void SetOCCTShape(const TopoDS_Shape& shape);
 
private:
  TGeoBBox BuildBBoxHelper() const;
  void EnsureDisplayHelper() const;
 
  std::unique_ptr<g4occt::detail::TGeoOCCTSolidBridge> fBridge;
  mutable std::unique_ptr<TGeoTessellated> fDisplayHelper;
  mutable std::uint64_t fDisplayGeneration{std::numeric_limits<std::uint64_t>::max()};
};
 
#endif // G4OCCT_TGeoOCCTSolid_hh