Implement arrow3d method in Axes3D
#30517
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story645
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Sep 5, 2025
lib/mpl_toolkits/mplot3d/art3d.py
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| """ | ||
| 3D FancyArrowPatch object. | ||
| """ | ||
| def __init__(self, xs, ys, zs, *args, **kwargs): |
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Suggested change
| def __init__(self, xs, ys, zs, *args, **kwargs): | |
| def __init__(self, posA, posB, *args, **kwargs): |
I think the signature should match the FancyArrowPatch signature unless you have a reason not to. I implemented a rudimentary version with this signature:
https://github.com/story645/team/blob/00c7374cefb216e51b8f8350a4b5512ec1068a99/paper/figcode/nontrivial.py#L54-L64
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IMO the major challenge here is semantics, scope and API design and that will entail the same topics as #29826 (comment), which lead to stalling in that thread. After all, we should have a consistent story between 2d and 3d. - I suspect to move forward here, we have to pick up the discussion from #29826. |
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PR summary
closes #22571
This PR implements a method to plot a 3D arrow.
The
ax.arrow3dmethod plots a single arrow between specified end, start points. It returns an instance of theArrow3Dclass, which inherits from theFancyArrowPatchclass. Additional kwargs are passed on toFancyArrowPatchto change properties of the arrow.PR checklist