fix vectorfield hover

[ahuang11]

import numpy as np
import holoviews as hv

hv.extension("bokeh")

hv.VectorField(
    ([-1, 0, 1, 2, 3], [-1, 0, 1, 2, 3], np.deg2rad([0, 45, 90, 180, 360]))
).opts(tools=["hover"])

Not sure there's a better solution, but I think it's better than no solution because hover is useful:

Closes #3785

[hoxbro]

I'm not a fan of this solution. The main reason is you increase the data by a factor of 4.

If we choose to go this way, we should at least limit this only to be done when we have an actual hover tool. By the looks of it, you send all the data to the front end no matter what.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.51%. Comparing base (2ba3d78) to head (7e87fcb).
Report is 12 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6258      +/-   ##
==========================================
+ Coverage   88.39%   88.51%   +0.12%     
==========================================
  Files         323      323              
  Lines       67620    67659      +39     
==========================================
+ Hits        59770    59887     +117     
+ Misses       7850     7772      -78     

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[hoxbro]

Maybe add two tests that check that hover information is sent to the front end if hover is enabled and one that checks it is not if hover is not enabled.

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.