Joint Reaction Force File Matlab

[Alessandro Navacchia]

Hello,

I am using the OpenSim Matlab API to build a for loop and perform IK, ID, Static Optimization and AnalyzeTool-Reaction Forces 100 times. I managed to perform the first 3 steps (IK, ID and SO) but I got stuck with the Reaction Forces Analysis inside the AnalyzeTool because there is no public function that allows me specifying the Force File (storage file from the Static Optimization results). I cannot specify a static Force File for all the simulations because the file changes every time. Doing it manually (adding the path of the file in the .xml setup) is too time-consuming.

On the documentation I saw that there is a method called loadForcesFromFile(string) that probably does what I need, but it is protected.

Therefore I have the following questions:
1) How can I use a protected method?
2) If I cannot use a protected method, how can I solve my problem without changing manually every .xml setup file?

Thank you very much in advance!

Alessandro

[Maria Isabel Orselli]

Hi Alessandro,

to solve this problem I:

loaded a generic setup file:

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analyzeTool = AnalyzeTool(genericSetupFile);

then I got the property by its index

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 x=analyzeTool.getAnalysisSet().get(0).getPropertyByIndex(5);

and with the PropertyHelper I could change the name of the file

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PropertyHelper.setValueString('new file',x);

Hope it helps,

Bel

[Alessandro Navacchia]

It was very helpful! Thanks a lot.

Alessandro