Hi there,
When I try to preview the external load data, there's nothing shown in the screen but the axis. I have checked the data file, the headings are fine. What can be the cause of this problem?
Any advice would be helpful. Thank you!
Experimental Data Preview problem
- Thomas Uchida
- Posts: 1791
- Joined: Wed May 16, 2012 11:40 am
Re: Experimental Data Preview problem
Perhaps try previewing Models/Gait2354_Simbody/subject01_walk1_grf.mot. If that works, you can compare with your file to hopefully identify the issue.
Re: Experimental Data Preview problem
Thanks for your reply.tkuchida wrote:Perhaps try previewing Models/Gait2354_Simbody/subject01_walk1_grf.mot. If that works, you can compare with your file to hopefully identify the issue.
I have tried the example file, and it did work. I have also compared the components of these two files. The only thing different is the pattern of ground reaction moments. May I ask where is the reference point for ground reation moments? And what else causes would lead this problem?
- Thomas Uchida
- Posts: 1791
- Joined: Wed May 16, 2012 11:40 am
Re: Experimental Data Preview problem
It isn't clear how this would be possible if the only differences are the values in the columns corresponding to moments. There are several possible explanations (incorrect header, missing values, tiny forces, etc.). Rather than attempt to list every possibility, it would probably be easier if you could upload your file and I'll take a look.I have also compared the components of these two files. The only thing different is the pattern of ground reaction moments.
Re: Experimental Data Preview problem
My file is attached. Thank you for your help.tkuchida wrote:It isn't clear how this would be possible if the only differences are the values in the columns corresponding to moments. There are several possible explanations (incorrect header, missing values, tiny forces, etc.). Rather than attempt to list every possibility, it would probably be easier if you could upload your file and I'll take a look.I have also compared the components of these two files. The only thing different is the pattern of ground reaction moments.
- Attachments
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- GR_walking_force I.mot
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- Thomas Uchida
- Posts: 1791
- Joined: Wed May 16, 2012 11:40 am
Re: Experimental Data Preview problem
The points of application must be specified in meters. The magnitudes of the values in your "ground_force_px", "ground_force_py", "ground_force_pz", "1_ground_force_px", "1_ground_force_py", and "1_ground_force_pz" columns are too large to be visible in the View window without a lot of zooming/panning. The arrows can be seen when all values in these six columns are divided by 1000 (I'm assuming they were specified in mm).
Re: Experimental Data Preview problem
It is solved. Thanks a lot!tkuchida wrote:The points of application must be specified in meters. The magnitudes of the values in your "ground_force_px", "ground_force_py", "ground_force_pz", "1_ground_force_px", "1_ground_force_py", and "1_ground_force_pz" columns are too large to be visible in the View window without a lot of zooming/panning. The arrows can be seen when all values in these six columns are divided by 1000 (I'm assuming they were specified in mm).