Parity for minor+major ticks+ticklabels #541
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Previously, when manually setting tick positions, the gridlines would not follow, and instead remain at auto-detection positions, or maybe some other arbitrary-seeming positions. This fixes it. Disclaimer: this was co-developed with gpt-5.1-codex, which identified the issue and proposed the fix, I tested and simplified its code a bit.
The js-side of mpld3/mplexporter#73 and fixes mpld3#527 Also adds some tests for minor-grid. It seems that the uglify is getting tripped up by `??`, so we should consider upgrading it, because a little chunk of this code could be quite a bit less verbose with that. Anyways, as usual disclaimer about having co-developed this with gpt-5.1-codex, but also tested and carefully reviewed/cleaned it. Here's what it has to say: - carry filtered minor tick values/length into axis props and draw a separate minor grid/tick layer - streamline axis getGrid tick selection and style passthrough to grids
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A few things were missing: - minor ticklabels altogether - major tick length setting - default tick length was arbitrary - make it same as matplotlib. This change brings both to parity, and makes sure they remain by using the same code for handling of most tick-related things, whether major or minor (except tickNr which only makes sense for major). After this, ticks and ticklabels have parity with standard matplotlib, I tested multiple scenarios (automatic vs manual setting and labeling, linear vs log axis, and similar) and compared against stock matplotlib. As usual, disclaiming I co-developed this with gpt-5.1-codex. We went through a lot of iterations here, both machine and me coding to get to this solution. Here's what it has to say: - Export and render minor ticks/grids with the same formatter/length handling as majors, including custom formatter overrides - Consolidate tick value/formatter application via a shared helper for both major and minor axes - Apply Matplotlib tick lengths to both major and minor ticks; keep minor labels hidden when only positions are set by default - Add tests for minor grid/tick export, minor label defaults, and major tick length”
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The js-side of mpld3/mplexporter#74 ; the first two commits belong to other PRs and will disappear upon their merge + this rebase, so only look at the last commit.
A few things were missing:
This change brings both to parity, and makes sure they remain by using
the same code for handling of most tick-related things, whether major or
minor (except tickNr which only makes sense for major).
After this, ticks and ticklabels have parity with standard matplotlib, I
tested multiple scenarios (automatic vs manual setting and labeling,
linear vs log axis, and similar) and compared against stock matplotlib.
As usual, disclaiming I co-developed this with gpt-5.1-codex. We went
through a lot of iterations here, both machine and me coding to get to this solution.
Here's what it has to say: