stl_occ_brep.h

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#ifndef __cplusplus
#  error C++ compiler required
#endif

#ifndef GMIO_SUPPORT_STL_OCC_BREP_H
#define GMIO_SUPPORT_STL_OCC_BREP_H

#include "support_global.h"
#include "../gmio_stl/stl_mesh.h"

#include <vector>

#include <Poly_Triangulation.hxx>
#include <TopoDS_Shape.hxx>
class TopoDS_Face;

struct gmio_stl_mesh_occshape : public gmio_stl_mesh
{
    gmio_stl_mesh_occshape();
    explicit gmio_stl_mesh_occshape(const TopoDS_Shape& shape);

    inline const TopoDS_Shape* shape() const { return m_shape; }

private:
    static void get_triangle(
            const void* cookie, uint32_t tri_id, gmio_stl_triangle* tri);

    void init_C_members();

    struct face_data {
        gp_Trsf trsf;
        bool is_reversed;
        const TColgp_Array1OfPnt* ptr_nodes;
    };
    struct triangle_data {
        const Poly_Triangle* ptr_triangle;
        const face_data* ptr_face_data;
    };

    std::vector<face_data> m_vec_face_data;
    std::vector<triangle_data> m_vec_triangle_data;
    const TopoDS_Shape* m_shape;
};

#endif /* GMIO_SUPPORT_STL_OCC_BREP_H */