BTK tool in Python

[Arif]

Hello everyone,

I'm working on a project in biomechanics and i need to use BTK tools in order to play with some C3D files. But i have a problem :
i followed the steps listed in the tutorial here :
http://biomechanical-toolkit.github.io/d...arted.html

and i wrote these lines :

import sys
import btk
import numpy
reader = btk.btkAcquisitionFileReader()
reader.SetFilename('ScapulaLocatorCalib_1_v1.c3d')
reader.Update()
acq = reader.GetOutput()
acq.GetPointFrequency()
acq.GetPointFrameNumber()

But i don't know where i have to put my C3D file so i have this error :

Error:
Traceback (most recent call last):
  File "D:/badrou/Desktop/test.py", line 6, in <module>
    reader.Update()
  File "C:\Python27\lib\site-packages\btk\__init__.py", line 4942, in Update
    return _btk.btkAcquisitionFileReader_Update(self)
RuntimeError: File doesn't exist
Filename: ScapulaLocatorCalib_1_v1.c3d

Thank you so much for your help,
Best regards,

Arif

[nilamo]

Unless you use an absolute path, all file paths are relative to wherever you're running the script, which is normally wherever the script itself is.