Error using fopen for obj file

Hi all,

Using MATLAB to open an obj file, fopen is currently throwing up -1: Hence fgets is throwing up an error!

Top level code looks as follows:

modName = 'Slender_solar';
modIn = fullfile(ADBSat_path,'inou','obj_files',[modName,'.obj']);

Then in the import function of the code: Note fileIn is designated as ModIn

fid = fopen(fileIn,'r');
line = fgets(fid);

Any idea of what could be going wrong?

Cheers

[Dyuman Joshi]

You should try these functions instead of fopen -

https://in.mathworks.com/matlabcentral/fileexchange/27982-wavefront-obj-toolbox

https://in.mathworks.com/matlabcentral/fileexchange/10223-loadawobj

https://in.mathworks.com/matlabcentral/fileexchange/18957-readobj

https://in.mathworks.com/matlabcentral/fileexchange/20307-display_obj

[Benjamin]

Will take a look, cheers!

Answer 1

[Star Strider]

A returned value of -1 means that fopen can’t open the file.

First, run:

which fileIn

to see if MATLAB can find it. If not, provide the correct path to it in your fullfile call.

[Benjamin]

Thanks, solved my issue!

[Star Strider]

My pleasure!