Description

Crop the acquistion and adapt the events' frame/time.

Syntax:: btkCropAcquisition(h, startAt) btkCropAcquisition(h, startAt, numFrames)

Parameters

h	Handle pointing to a C++ btk::Acquisition object.
startAt	Integer containing the frame where the cut will start.
startAt	Number of frames to keep.
numFrames	Handle pointing to a C++ btk::Acquisition object.

Detailed description:: btkCropAcquisition(h, startAt) keeps all the frames from the frame startAt. The function shifts also the events' frame/time by adding the difference between the new first frame and the old one. For this adaptation, the sample frequency must be non-null.

btkCropAcquisition(h, startAt, numFrames) keeps exactly numFrames frames starting from the frame startAt.