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  #11  
Old 12-07-2017, 02:58 PM
biomechanik.288026 biomechanik.288026 is offline
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Hi Pavel,
Thanks for your advice.
CAL_Matrix problem is solved and now there is other problem stating missing euler trunk.txt file. it is GRF force file?
Thanks in advance.
regards
Attached Images
File Type: png error tunk.PNG (2.9 KB, 2 views)
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  #12  
Old 12-08-2017, 02:54 PM
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pgalibarov pgalibarov is offline
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Hi,

This file will be automatically created once you run ParameterIdentification and MarkerTracking analyses. It is a file that will contain optimized kinematics of the trunk for a particular trial.

Kind regards,
Pavel

Last edited by pgalibarov; 12-08-2017 at 03:05 PM.
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  #13  
Old 12-08-2017, 06:42 PM
biomechanik.288026 biomechanik.288026 is offline
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Hi Pavel,
Thanks alot for your recious advice and help. Alot of error and problems are solved with the help of your precious suggestions.
Currently I am working on Squat model and using AnyBody verion 6. I have uploaded and loaded the model with the markers (Pic is attached). I have 56 markers in total but I neglect some of them and My model has now 46 markers.
Currently I am facing an issue. When I run Motion and Parameter optimization it shows alot of erros. I am attaching picture for that too.
What i think might be the poblems are:
1) I neglect some of the markers in the C3D file using MOKKA software and hide some of the markers. This is not seen to be practical with constraint error. But I tought It might be the possibility.
2) MOKKA software shows the vertical direction of the lab to be Z direction but my model is having Y direction as vertical. I think this might be the reason that it is difficult for the model to get into C3D markers poisitions initially.
3) Some of my markers are shown in red color. this might be because I put some weigt there on foot markers, which I dont need to have weight there on foot markers becasue for Squat model Foot is practically not moving at all.
Thanks alot for your precious time and Without your help the model will not be at this stage utnill it is now.Full Error file is also attached.
Looking forward for your kind response.
Regards,
Attached Images
File Type: bmp model first impresion with markers.bmp (886.9 KB, 1 views)
File Type: png MOKKA C3D read.PNG (80.8 KB, 2 views)
File Type: png motion optimization eorror.PNG (108.5 KB, 3 views)
Attached Files
File Type: pdf error file.pdf (58.0 KB, 2 views)

Last edited by biomechanik.288026; 12-08-2017 at 06:48 PM.
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  #14  
Old 12-11-2017, 10:57 AM
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pgalibarov pgalibarov is offline
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Hi Usman,

You almost answered your question yourself. You need to adjust initial position of the model to be rotated 90 degrees and change gravity to correspond to the Z axis as vertical direction.


Kind regards,
Pavel
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  #15  
Old 12-12-2017, 04:42 PM
biomechanik.288026 biomechanik.288026 is offline
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Hi Pavel,
Thanks for your reply. I did chanegd the Initial position of Body. AnyvarROTZ= 90. But it is showing error again. I changed manually other two PelvisROTX and Y but error remains the same. I am attaching picture for code and initial position of the body.
Looking forward for your kind response.
Regards
Attached Images
File Type: png first position.PNG (163.3 KB, 7 views)
File Type: png location of error.PNG (36.4 KB, 4 views)
File Type: png initial guess.PNG (34.5 KB, 5 views)

Last edited by biomechanik.288026; 12-12-2017 at 04:57 PM.
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  #16  
Old 12-12-2017, 05:29 PM
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pgalibarov pgalibarov is offline
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Hi Usman,

I don't know what error you are getting, but please try removing rotation about Z and adding rotation about X only for a start. Please try aligning this model with the markers using PelvisRot angles.

P.
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  #17  
Old 12-13-2017, 04:59 PM
biomechanik.288026 biomechanik.288026 is offline
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Hi Pavel,
Thanks alot for your reply. I did tried to add different angles to the PelvisRot but the error remains the same. I noticed one thing when I loaded the model with changed angle the position of model is not changed at all. Picture is attached and complete error is also attached.
Regards
Attached Images
File Type: png errrorrrr.PNG (193.0 KB, 3 views)
Attached Files
File Type: pdf error file.pdf (59.2 KB, 0 views)
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  #18  
Old 12-14-2017, 11:09 AM
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pgalibarov pgalibarov is offline
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Could you upload the model into the Debug section of the forum?
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  #19  
Old 12-14-2017, 12:56 PM
biomechanik.288026 biomechanik.288026 is offline
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Hi Pavel,
Thanks for your reply.
Let me describe my project scenario. I have nearly about 56 markers and I hide 10 of those markers in MOKKA program. Now I have 46 markers in C3D file and on body model exactly 46 markers. Is this might be a problem for the error?
I have version 6 license. Can I install version 7 with the same license file for version 6 I will try to upload model in version 7 and see result.
For uploading model in the debug section, data like C3D need not to be compromised. Can you please figure out any other way out?
Looking forward for your kind remarks.
Regards
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  #20  
Old 12-14-2017, 01:28 PM
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pgalibarov pgalibarov is offline
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Hi Usman,

Hiding markers in Mokka does not change the C3D file. The markers will still be available in the AnyBody model. You would just need to establish a correspondence between relevant physical and virtual (AnyBody) markers.

As I see from your screenshot - the problem is that the initial orientation of the model looks strange. Not aligned with the force plates and so on.

Could you post a screenshot from Mokka? Generally speaking PelvisRotX should help, but I can't check that without trying myself. Plus you may need to improve the initial guess to bring virtual markers closer to the MoCap markers.
Could you try changing posture to match markers?


You can upgrade to the version 7 with the same license if you still have maintenance until this date. If not - it would require buying maintenance.

Kind regards,
Pavel
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