btkCropAcquisition does not work in Matlab2016b

[Barbara Pobatschnig]

Hi,

we tried to crop our c3d-files with the function btkCropAcquisition. We have marker trajectories and an analog signal with peaks. To crop the file we use the analog peaks. It works perfectly in Matlab2011b (32-bit). Now we are using Matlab2016 (64-bit) and the function btkGetPointsValues needs a second input although in the library there is no second input listed. BtkSetPointsValues also needs a second input. If we add a second input to btkSetPointsValues we got the following error, although the inputs have the same size: "The second input doesn't have the same size than the number of points values."

In Matlab2011 we used the following code and it works properly. We also use the latest version of the btk tool.

Best regards, Barbara

[l.mod...@sheffield.ac.uk]

Hi Barbara,

have you found a solution to this issue? I managed to have btkCropAcquisition working again on Matlab 2017a by downgrading to BTK 2.1, but obviously it is not an ideal fix.

Best regards,

Luca