How to open Tonatiuh output .DAT files in MATLAB?

Question

Muhammad Taha Manzoor 2021-1-21

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/723398-how-to-open-tonatiuh-output-dat-files-in-matlab

评论： venu 2024-1-28

Hi, I have output files from Tonatiuh ray-tracing software but I am unable to open this file in any other software. I was wondering if there is any way to open it in MATLAB so that I can perform the analysis that I need.

Any help would be appreciate in this regard. This is a binary output file with a .DAT extension. I am unable to uplaod the file here so I am attaching a One-Drive link if anybody wants to have a look.

File link: https://mcgill-my.sharepoint.com/:u:/g/personal/muhammad_t_manzoor_mail_mcgill_ca/EZZ1GKzL4qFAgQ_uQ_eQYjQBbKQQohNa52twkqotNCQM3w?e=FqajE5

3 个评论
显示 1更早的评论隐藏 1更早的评论

Vishesh 2022-10-3

The File link has expired now. So I am unable to access it.

For reading DAT file , you can use "fread" function.

The "fread" function takes three arguments: the file identifier, the number of elements to be read, and the data type. Here is a link to a documentation page with more information. https://www.mathworks.com/help/matlab/ref/fread.html?searchHighlight=fread&s_tid=doc_srchtitle
Each call to "fread" reads a number of bytes specified by the number of elements and the data type being read. The file pointer is left immediately after the last element read.
Refer to the "precision" section of the above link to see which precision flags correspond to different data types/number of bytes.

venu 2024-1-27

编辑：Walter Roberson 2024-1-27

Respected sir,

I am also facing same problem did you done within please help me

here by i am attaching the file google drive link https://drive.google.com/file/d/1e6J5ix29uK20r1WKoIg3zyze7Es1Ksfz/view?usp=drive_link

please kindly help me

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2022-10-3

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/723398-how-to-open-tonatiuh-output-dat-files-in-matlab#answer_1065440

The file format is described at https://code.google.com/archive/p/tonatiuh/

You might find it useful to use memmapfile to define a structure describing the binary layout, as you would then be able to refer to the parts by name and MATLAB would automatically do all the binary I/O work necessary.