.. _program_listing_file_include_trx_legacy_io.h:

Program Listing for File legacy_io.h
====================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_trx_legacy_io.h>` (``include/trx/legacy_io.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #ifndef TRX_LEGACY_IO_H
   #define TRX_LEGACY_IO_H
   
   #include <string>
   #include <vector>
   #include <cstdint>
   #include <memory>
   #include <trx/trx.h>
   
   namespace trx {
   namespace legacy {
   
   struct Tractogram {
       std::vector<float> pts;
       std::vector<uint64_t> offsets;
       json11::Json header;
       std::shared_ptr<trx::AnyTrxFile> original_trx;
   };
   
   #pragma pack(push, 1)
   struct TrkHeader {
       char magic_number[6];
       int16_t dimensions[3];
       float voxel_sizes[3];
       float origin[3];
       int16_t nb_scalars_per_point;
       char scalar_name[10][20];
       int16_t nb_properties_per_streamline;
       char property_name[10][20];
       float voxel_to_rasmm[4][4];
       char reserved[444];
       char voxel_order[4];
       char pad2[4];
       float image_orientation_patient[6];
       char pad1[2];
       char invert_x;
       char invert_y;
       char invert_z;
       char swap_xy;
       char swap_yz;
       char swap_zx;
       int32_t nb_streamlines;
       int32_t version;
       int32_t hdr_size;
   };
   #pragma pack(pop)
   
   bool load_trx(const std::string &filename, Tractogram &tr);
   bool load_trk(const std::string &filename, Tractogram &tr);
   bool load_tck(const std::string &filename, Tractogram &tr);
   bool load_vtk(const std::string &filename, Tractogram &tr);
   
   bool load_nifti_header(const std::string &ref_path, json11::Json &out_header);
   
   bool save_trx(const Tractogram &tr, const std::string &out_path, const std::string &ref_nifti_path = "");
   bool save_trk(const Tractogram &tr, const std::string &out_path, const std::string &original_filename = "", const std::string &ref_nifti_path = "");
   bool save_tck(const Tractogram &tr, const std::string &out_path);
   bool save_vtk(const Tractogram &tr, const std::string &out_path);
   
   } // namespace legacy
   } // namespace trx
   
   #endif // TRX_LEGACY_IO_H