I am relatively new to anybody. I have started the tutorials some time ago and have understood the basics.
Right now, I am trying t conduct gait analysis using C3D data. I have successfully done this except for one main problem; the reference frame of the c3d data is not the same as the reference of the model. This results in the model being placed in a particular position, while the markers from c3d data are placed in a totally different orientation. Hence, the parameter optimisation does not work, because there are very large differences in the coordinate systems. Anyone can tell me what I can do to rotate one of the reference frames to match the others so that the model will work?
Please, attached find a snapshot of the model view upon loading the file.
Hope that you will be able to help, because this is an engineering project and I need to get it done.
I cannot completely identify the global axes (is z the direction of the gravity?) in your picture but I belive rotating the model 90° about the x axis (trialspecificdata.any) should help you. If this isn’t the correct rotation please try it yourself or post a picture with a higher resolution or the models itself.
Thank you very much guys I did it now it was exactly how you said. However, now I have another problem. I need to export the forces felt on the bone to an APDL format, however, when I use the AnyMechOutputFileForceExport class, no file is being created in the “files_in” folder I don’t know the reason for this. I have put the following code at the end of the “InverseDynamics.any” file:
I have solved the problem, however, I have another one now… it seems that the AnyFE2APDL file is not recognising the anybody license. I have tried copying the license to the AnyFE2APDL.exe file and renaming it to “license”, however this has not worked.