Tracking from scratch

[AnniekStok]

Two basic options are implemented (#221) :

• Tracking from scratch by placing points, based on the dimensions of the selected image layer
• Tracking from detections: create a candidate graph with no edges from either a Points or a Labels layer

[codecov-commenter]

Codecov Report

❌ Patch coverage is 99.02913% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.20%. Comparing base (9546021) to head (71551ee).

Files with missing lines	Patch %	Lines
.../application_menus/tracking_from_scratch_widget.py	98.07%	1 Missing ⚠️
...ile_tracker/data_views/views/layers/track_graph.py	87.50%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #458      +/-   ##
==========================================
+ Coverage   88.81%   89.20%   +0.38%     
==========================================
  Files          59       61       +2     
  Lines        5776     5974     +198     
==========================================
+ Hits         5130     5329     +199     
+ Misses        646      645       -1     

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[cmalinmayor]

Split into two PRs? Just starting from an empty graph, and then copying objects/updating segmentation from a linked "source" layer (points or seg). Might need two modes for the second part for segmentation layers, one that creates a new object, and one that appends to the existing object with that track ID.

[cmalinmayor]

Notes from conversation:
New tracks button in Tracks List.
Copy from source layer in Editing widget.

[AnniekStok]

Currently painting is not working because of #480, but after #447 is merged I will try again.

[AnniekStok]

Confirmed that the painting is now working again!