Changing force plates in Foot MoCAP model

#41

Hi
I input C3D file to anybody i change name of marker and type of forceplate. but when i save and load ,i can’t see the forceplate and line of all markers connect to origin(0,0,0)(blue markers).
I try to check the SRel each a marker , input to new file and search the github but i can’t to slove this problem. I don’t understand that where’s mistake. Even if ,a past file i do same with this file but it s successly.
i can’t attach file zip but i attach my pic.
Thank you

#42

Have you checked the units? It looks like your markers on the model relate to something much smaller because all red lines concentrate in one point.

#43

Hi,Søren,

I was using the GM-foot model.As you mentioned,the plantar pressure mat is needed for distributing the ground reaction force.However,the pressure pat is not available for me.I was wondering if I could use the pressure insoles to distribute the ground reaction force instead of using the pressure mat?

Best regards,
Johntiger

#44

Hi,Søren,

I was using the GM-foot model.As you mentioned,the plantar pressure mat is needed for distributing the ground reaction force.However,the pressure pat is not available for me.I was wondering if I could use the pressure insoles to distribute the ground reaction force instead of using the pressure mat?

Best regards,
Johntiger

#45

Hi Soren and John,

I hope you don’t mind the contribution of my thoughts. I think to get this to work you would need to convert the insole pressure data output from the software you are using to a text file and then format that to match the current repository text file.

#46

Hi Zach,
Thanks very much for your message.
It sounds reasonable but a little challenging, but I will have a try and modify the insole pressure data to match the current txt file.

Best regards,
John

#47

Hi John,

I think there are two ways:
[ol]
[li] do as Zach describes convert your data to the pressure plate format, i guess it is possible but it may not be very elegant, in this way you may avoid to change the python code which read the data.
[/li][li] make a new script that applies the load to the foot, using your data. You will need to read the data in using an AnyInputFile then apply the loads to the specific nodes on the foot corresponding to your data, give the force a direction using the forceplate data, possibly also scale the pressure data using the forceplate data, since it is likely to have a more accurate net force.
[/li][/ol]

Best regards
Søren

#48

Hi Søren,
Thanks very much for your suggestion.
I will have a try with the methods you suggested.

Best regards,
John

#49

Hi Søren,

I’m sorry to disturb you again.
I was wondering if I could get the foot skin geometry (stl format) of the GM-foot model from you. I observed the there is a skin geometry (stl) file in the video :Scaling of the AnyBody GlasgowMaastricht Foot Model in MeshLab ( https://www.youtube.com/watch?v=BmB-88o8uYY&feature=youtu.be).
Thanks for your work.

Best regards,
John

#50

Hi John

I have added the skin to the GM foot model we have available here:

Best regards
Søren

#51

Dear Søren,

Thanks very much for your work!
I will check the stl file.

Best regards,
John