Re: [Orekit Users] orekit-7.0 called from matlab

[Ryan Shepperd <ryan_shepperd@yahoo.com>]

Rami,

Thank you for checking.  Yes, I had made the change on line 142 and placed orekit-7.0.jar in the expected lib directory, and restarted matlab (to be sure the orekit-6.0 instance was gone).  I have the error pasted below, but I am running matlab R2014b on a slightly older version of MacOS (Darwin Kernel Version 11.4.2).  I do have access to the current version of matlab on Windows and the current and earlier versions on Linux, so I will check those out tomorrow and see if my inability to use orekit-7.0 within matlab is limited to an OS or matlab version as it sounds like it must.

Cheers,

Ryan

   Retrieving ISS Orbital Data...
The class org.orekit.frames.FramesFactory has no property or method named 'getITRF2005'.

Error in getPropagator (line 68)
orekitData.frames.ITRF2005 = FramesFactory.getITRF2005(false);


Error in ISSTracker>main (line 203)
        propagator = getPropagator(p, v, iD);

Error in ISSTracker>ISSTracker_OpeningFcn (line 163)
main(hObject, handles)

Error in gui_mainfcn (line 220)
    feval(gui_State.gui_OpeningFcn, gui_hFigure, [], guidata(gui_hFigure), varargin{:});

Error in ISSTracker (line 110)
        gui_mainfcn(gui_State, varargin{:});

Error in ISSTracker>warndlgCallback (line 119)
ISSTracker;
 
Error while evaluating DestroyedObject Callback

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From: Rami Houdroge <rami.houdroge@hotmail.com>
To: "ryan_shepperd@yahoo.com" <ryan_shepperd@yahoo.com>
Cc: "orekit-users@orekit.org" <orekit-users@orekit.org>
Sent: Sunday, February 1, 2015 4:05 PM
Subject: RE: [Orekit Users] orekit-7.0 called from matlab

Hi Ryan,

For ISSTracker, loading Orekit 7.0 instead of 6.1 works well for me. The errors you mentioned don't occur. I'm using R2013a.

Question : when you replaced the jar file, did you also change the ISSTracker.m script (line 142) ? You should tell it to load the new jar file.

Note : You can also load Orekit into Matlab at startup. This means you won't have to tell Matlab to load the jar manually (javaaddpath). This is done by :
- adding the jar file to the jarext folder 'Matlab root'/java/jarext
- adding the jar path to the classpath located at 'Matlab root'/toolbox/local/classpath.txt

Cheers,

Rami

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From: chris.lebris@gmail.com
Date: Wed, 28 Jan 2015 12:24:23 +0100
To: orekit-users@orekit.org
Subject: Re: [Orekit Users] orekit-7.0 called from matlab

Hello,

I don't have R2014b but calling Orekit 7.0 from Matlab 2013a works well for me.

Christophe

2015-01-28 9:59 GMT+01:00 Houdroge Rami (THALES SERVICES) <Rami.Houdroge@cnes.fr>:

Hi Ryan,

I will look into upgrading ISSTracker to orekit 7.0 and will get back to you.

Cheers,

Rami Houdroge


-----Original Message-----
From: orekit-users-request@orekit.org [mailto:orekit-users-request@orekit.org] On Behalf Of ryan_shepperd@yahoo.com
Sent: mercredi 28 janvier 2015 05:00
To: orekit-users@orekit.org
Subject: [Orekit Users] orekit-7.0 called from matlab

I was trying to explore possible uses of orekit from within matlab but ran into problems trying to use the advice at https://www.orekit.org/forge/projects/orekit/wiki/Integration_in_Matlab with orekit-7.0.jar and Matlab R2014b.  I get errors like

Undefined variable "DataProvidersManager" or class "DataProvidersManager.getInstance".

I am able to load and use orekit-6.0.jar using or following the example of "http://www.mathworks.com/matlabcentral/fileexchange/42733-isstracker-v1-0-0",
which uses orekit-6.0.   Replacing orekit-6.0 with orekit-7.0 in isstracker
resulted in the same error I have been encountering, so there seems to be something different that one must do to successfully load orekit-7.0 classes into matlab.

I am happy I at least gained access to orekit-6.0 from within matlab.  I can at least take a look at the possibilities and maybe start to learn why my
orekit-7.0 efforts failed.  However, I am very curious if anyone out there has been able to use orekit-7.0 from within a recent version of matlab.