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[BUG] Ensure positions are dimensionless in plot callbacks #5063

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@cphyc cphyc commented Nov 22, 2024

PR Summary

Fixes #5062. The bug was caused by conversion mistakes when converting from physical units to plot coordinates.

The sphere callback (and others) multiply input units by a factor, expressed in 1/length. When the input units depend on the Hubble factor (e.g., Mpc/h), the multiplication yields a value in units of 1/h, so an extra conversion to remove the h factor is required. This is what this PR does.

PR Checklist

  • Adds a test for any bugs fixed. Adds tests for new features.

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cphyc commented Nov 22, 2024

I am unsure how to best test this. Maybe an answer test would be best?

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how about a new image test in visualization/tests/test_image_comp_2D_plots.py ?

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[BUG] annotate_sphere radius depends on choice of center
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