DOC: add warnings about get_window_extent and BboxImage #29910
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timhoffm
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Apr 13, 2025
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| To get accurate results you may need to manually call | ||
| `matplotlib.figure.Figure.savefig` or | ||
| `matplotlib.figure.Figure.draw_without_rendering` to have Matplotlib | ||
| compute the rendered size. |
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This is unclear to me. I feel, we are mixing two things here an it's too short to understand:
draw_without_renderingensures the window_extent is up-to-date for the current transform stack. This resolves incorrect intermediate state due to lazy evalutation, e.g. of the layout.- How does
savefighelp here? Is this this the double save idea of Bug when saving to vector format (pdf, svg, eps) #2831 (comment). If so, that needs more explanation. Also I'm not sure on the generality of the solution Bug when saving to vector format (pdf, svg, eps) #2831 (comment).
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I left a comment over on #2831 for why in the case of vector backends we may need savefig (tl;dr: print_pdf changes the DPI).
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I still think this is too terse to be helpful and actionable for users. However, I won't block over this.
Decide yourself whether it's good enough for now or how much additional effort you want to put into this.
Co-authored-by: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>
Co-authored-by: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>
timhoffm
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Apr 16, 2025
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I'm going to merge on @timhoffm 's approval. I do not disagree this is terse and vague, but I'm not sure how to make it less vague without making it way less terse. |
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Closes #2831
Went with a purely documentation fix (and fleshed out the
BBoxImagedocs while I was at it).PR checklist