TinyMAT - A Library for Writing Matlab MAT-files

A (partly templated) C++ library to handle writing simple Matlab(r) MAT file in Version "MATLAB 5.0" or higher. This library implements a very simple interface to write Matlab MAT file (level 5), as described in http://www.mathworks.de/help/pdf_doc/matlab/matfile_format.pdf

This software is licensed under the term of the GNU Lesser General Public License 2.1 (LGPL 2.1) or above. See licensesec for details.

Some helpful links:

• Online-Documentation (http://jkriege2.github.io/TinyMAT/index.html)
• Source Code Repository (https://github.com/jkriege2/TinyMAT)

Library Bindings:

• There exists a plugin for the CImg image processing library, that uses TinyTIFFWriter: https://github.com/dtschump/CImg/blob/master/plugins/tinymatwriter.h.

The following example code writes some arrays and matrices into a MAT-file:

TinyMATWriterFile* mat=TinyMATWriter_open("test.mat");
if (mat) {
  // a 3D matrix in row-major
  double mat432[4*3*2]= {
      1,2,3,
    4,5,6,
    
    10,20,30,
    40,50,60,
    
    100,200,300,
    400,500,600,
    
    1000,2000,3000,
    4000,5000,6000,
  };
  int32_t mat432_size[3] = {3,2,4}; // columns, rows, matrices,...
 
  // a struct as a map of doubles
  std::map<std::string, double> mp1;
  mp1["x"]=100;
  mp1["y"]=200;
  mp1["z"]=300;
  mp1["longname"]=10000*M_PI;
 
  TinyMATWriter_writeStruct(mat, "struct1", mp1);
  TinyMATWriter_writeMatrixND_rowmajor(mat, "matrix432", mat432, mat432_size, 3);
  
  TinyMATWriter_close(mat);
}