Deleting multiples tracks at once?

[cosimogonnelli]

Hi All,

Do you have any suggestions on how to delete multiples tracks at once?
In Sleap you provide a way to delete one or all tracks but in my case I have many tracks to delete and it becomes time consuming to do that manually.

Thanks!

[roomrys]

Hi @cosimogonnelli,

We do not currently offer this in the GUI, but this is a great feature request. For the moment, you can programmatically delete tracks with the following template (in the sleap conda environment, run ipython then follow steps below):

In [1]: import sleap

In [2]: ds = "path/to/slp"

In [3]: labels = sleap.load_file(ds)

In [4]: tracks = labels.tracks

In [5]: tracks
Out [5]:  
[Track(spawned_on=10001, name='track_0'),
 Track(spawned_on=10001, name='track_1'),
 Track(spawned_on=0, name='track_0'),
 Track(spawned_on=0, name='track_1'),
 Track(spawned_on=3800, name='track_12'),
 Track(spawned_on=3805, name='track_13')]
 
In [6]: track_indices_to_delete = [0, 2, 3]  # Insert own indices here

In [7]: tracks_to_delete = [tracks[idx] for idx in track_indices_to_delete]

In [8]: tracks_to_delete
Out [8]: 
[Track(spawned_on=10001, name='track_0'),
 Track(spawned_on=0, name='track_0'),
 Track(spawned_on=0, name='track_1')]

In [9]: for track in track_to_remove:
    ...:     labels.remove_track(track)
    ...:

In [10]: tracks
Out [10]:
[Track(spawned_on=10001, name='track_1'),
 Track(spawned_on=3800, name='track_12'),
 Track(spawned_on=3805, name='track_13')]
    
In [11]: new_slp_path = "path/to/save/modified/slp/to"  # To be safe, do not use the same path as the original

In [12]: sleap.Labels.save(labels, new_slp_path)

[cosimogonnelli]

This is great, thanks!
Yeah, I think it would be great for people to have it available in the GUI.

Best,

[roomrys]

To follow-up, we now have a Tracks > Delete Multiple > All or Unused option in the GUI.