GeometryTriangulator.h

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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2017 ISIS Rutherford Appleton Laboratory UKRI,
//   NScD Oak Ridge National Laboratory, European Spallation Source,
//   Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
 
#include "MantidGeometry/DllConfig.h"
#include <memory>
#include <vector>
 
class TopoDS_Shape;
 
namespace Mantid {
namespace Geometry {
class CSGObject;
class RenderingMesh;
 
namespace detail {
 
class MANTID_GEOMETRY_DLL GeometryTriangulator {
private:
  bool m_isTriangulated;
  size_t m_nFaces = 0;
  size_t m_nPoints = 0;
  std::vector<double> m_points;        
  std::vector<uint32_t> m_faces;       
  const CSGObject *m_csgObj = nullptr; 
  std::unique_ptr<RenderingMesh> m_meshObj;
  void checkTriangulated();
 
public:
  GeometryTriangulator(const CSGObject *obj = nullptr);
  GeometryTriangulator(std::unique_ptr<RenderingMesh> obj);
  GeometryTriangulator(const GeometryTriangulator &) = delete;
  GeometryTriangulator &operator=(const GeometryTriangulator &) = delete;
  ~GeometryTriangulator();
  void triangulate();
  void generateMesh();
  void setGeometryCache(size_t nPoints, size_t nFaces, std::vector<double> &&points, std::vector<uint32_t> &&faces);
  size_t numTriangleFaces();
  size_t numTriangleVertices();
  const std::vector<double> &getTriangleVertices();
  const std::vector<uint32_t> &getTriangleFaces();
#ifdef ENABLE_OPENCASCADE
private:
  std::unique_ptr<TopoDS_Shape> m_objSurface; 
  void OCAnalyzeObject();
  void setupMesh(); 
 
public:
  bool hasOCSurface() const;
  const TopoDS_Shape &getOCSurface();
#endif
};
} // namespace detail
} // namespace Geometry
} // namespace Mantid