Read a .mat file without the use of matlab API

[harka011]

My task is the following:

I want to read a .mat file, to extract the values of certain variables and plot them on a graph.

I do not want to use any matlab libraries.

I am using Qt Creator and programming in C++.

The file format of the .mat Version 4 file ( the one I want to read ) is available on :

http://maxwell.me.gu.edu.au/spl/matlab-page/matfile_format.pdf

A .mat file stores data in binary format. It may contain one or more metrices.

Anyone who has done something like this succesfully?
I have experimented alot with streams, qbytearray qfile etc but haven't solved it yet.

Appreciate the help.

[deimos]

I never used matlab API, but into debian repository I see libmatio that could help you.
The description says:
"matio is an ISO C library (with a limited Fortran 90 interface) for
reading and writing Matlab MAT files."

this is the "link":http://sourceforge.net/projects/matio/ to the project

regards

[johncc]

Hello Deimos,

While searching for a similar solution, I came across your reply. Just wanted to
warn that the 'matio' library does not support Matlab level 4 files too well.
I just tried it out with a simple file I have, a it just didn't work.

I contacted the author and he indicated he'd rather drop level 4 support (admittedly
a little old), than patch it up to get it working.

John