txt not well formated with marker and view direction output
If angle of view and marker IDs are exported the generated txt output looks like:
# PeTrack project: multiColorMarkerWithAruco.pet
# raw trajectory file: multiColorMarkerWithAruco_truth.trc
# framerate: 50 fps
# z: can be 3d position or height of person (alternating or not)
# viewDirX viewDirY: vector of direction of head of person
# viewAngle: angle of view of camera to person from perpendicular [0..Pi/2]
# id frame x/m y/m z/m viewDirX viewDirY viewAngle
markerID
1 0 0.640972 -0.328605 1.8 0 0 0.227377
995
1 1 0.618796 -0.320652 1.8 0 0 0.220984
995
1 2 0.597093 -0.312875 1.8 0 0 0.214712
995
...