yt-project/yt

Bad sub-volume plots for BoxLib/Maestro spherical data

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#960 opened on Dec 16, 2014

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Description

Originally reported by: Adam Jacobs (Bitbucket: adam_m_jcbs, GitHub: Unknown)

When I try to plot an off-axis slice of a subset of BoxLib/Maestro spherical data (yt test dataset maestro_subCh_plt00248) I find that my data gets junked if the plot includes any regions outside of the subset. My understanding is that in yt the regions outside of the sub-volume should be white and the other data should be plotted as it is when the full dataset is plotted.

This issue feels similar to a previously resolved issue dealing with off-axis slices of spherical Maestro data (#955/off-axis-slices-returning-incorrect). I've attached code that produces the error as well as images of the output.

Contributor guide

Research direction
Examine the off axis slice code path for spherical data, particularly how sub volume regions are handled. Reproduce the issue with the test dataset maestro subCh plt00248 and trace where data becomes junk outside the subset.
Tech stack
python
Domain
data
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Pythonyt
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60