All examples rendering correctly with vedo 2023.5.0

[IgorTatarnikov]

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Description

What is this PR

• Bug fix
• Addition of a new feature
• Other

Why is this PR needed?
Several example files were either not running, or not rendering correctly (misaligned with the root mesh)

What does this PR do?
Ensure all example scripts (except streamlines.py due to missing data) run and render correctly.

References

closes #251
closes #261

Checklist:

• The code has been tested locally
• Tests have been added to cover all new functionality (unit & integration)
• The code has been formatted with pre-commit

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (e6df766) 81.15% compared to head (b3fa6eb) 86.39%.

Additional details and impacted files

@@             Coverage Diff              @@
##           mega-fix     #281      +/-   ##
============================================
+ Coverage     81.15%   86.39%   +5.23%     
============================================
  Files            26       26              
  Lines          1194     1205      +11     
============================================
+ Hits            969     1041      +72     
+ Misses          225      164      -61     

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[alessandrofelder]

Awesome! Needs some very minor fixes 🎉

I hacked something together locally to pytest test/test_examples.py --runslow --runlocal pass, the minor fixes needed are:

• uncommenting neurons and ruler examples in test_examples.py and examples/__init__.py (pushed this commit already)
• fixing some relative paths to the data

For now (until we decide to use pooch) I suggest moving the example data into a resources folder and using importlib.resources to access it, to avoid duplication of data and problems with relative paths to data files.

For an example use of importlib.resources see https://github.com/brainglobe/brainrender-napari/blob/2249ba8914ba9ccdef43837d2a6401db657b32e2/brainrender_napari/utils/brainglobe_logo.py#L5

[IgorTatarnikov]

All done! All resources are now in brainrender/resources. Any example or test that was using the data no uses importlib.resources to fetch the data.