Including jsbs in my Matlab code

I am trying to develop Matlab code for a flight simulator and want to include jsbs in the code. Not sure how best to do it i.e. in a cmd line - or is there a better way?

Answer 1

[Star Strider]

Are you interested in using it with the Aerospace Toolbox? Since JSBSim is designed to run independently under several different operting systems, and since it does not mention MATLAB in its online documentation, you will need to contact MathWorks to see how you can integrate it into MATLAB.

It would probably help if you are a bit more specific about how you want to integrate it into MATLAB in your note to them.

[Walter Roberson]

JSBSim is written in C++, so in theory you might be able to call the code from MATLAB, perhaps using https://www.mathworks.com/help/matlab/use-prebuilt-matlab-interface-to-c-library.html

[Ken]

I assumed the file already exists in jsbsim so tried the line [aircraft, state] = jsbsimToFixedWing(aircraft, 'c172r\c172r.xml', 'JSBSimRoot', 'c:\jsbsim'); but got error 'Invalid argument at position 2. These files do not exist: 'c172r\c172r.xml'. Was looking for trying to get directly to jsbsim'

[Star Strider]

It seems that you will need to examine your JSBSim installation to be certain the necessary files were installed in the correct directories or subdirectories so that the calling routine can find them. It might also be worthwhile contact the authors and request information on where everything is supposed to be installed if that is not already available.

I know nothing more about JSBSim than I wrote earlier. (I'm an Instrument-Rated Private Pilot, so the concept interests me.)

[Walter Roberson]

Try providing an absolute path to the files instead of a relative path.

[Ken]

The absolute path is lengthy i.e. C:\Users\User\Downloads\jsbssim-1.2.4\aircraft\c172r.

Wonder if there is a shortcut to this?

[Walter Roberson]

basedir = 'C:\Users\User\Downloads\jsbssim-1.2.4\aircraft';

[aircraft, state] = jsbsimToFixedWing(aircraft, fullfile(basedir,'c172r\c172r.xml'), 'JSBSimRoot', 'c:\jsbsim');

[Ken]

Thanks. Now have to get c172r.xml file and its directory.

[Star Strider]

You need to move or copy it to from your 'Downloads' directory to wherever it needs to be in JSBSim. You can probably do that manually. (JSBSIm probably needs to be in its own directory, not 'Downloads', as do the files it needs to access.)