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Hide text on empty slices to avoid PDF exports in MS Word from SVG imports #6335

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Merged
merged 5 commits into from
Oct 6, 2022
Merged

Hide text on empty slices to avoid PDF exports in MS Word from SVG imports #6335

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d3c1435
hide pie text on empty slices
archmoj Oct 4, 2022
e225529
ensure reset display when the element is reused
archmoj Oct 5, 2022
856353b
revert pie titleText changes
archmoj Oct 6, 2022
035d8dd
hide text of empty slices
archmoj Oct 6, 2022
e8eef1c
centralize & reuse hide logic in bars & funnelarea
archmoj Oct 6, 2022
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14 changes: 10 additions & 4 deletions src/traces/pie/plot.js
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Original file line number Diff line number Diff line change
Expand Up @@ -239,10 +239,16 @@ function plot(gd, cdModule) {
transform = positionTitleOutside(cd0, gs);
}

titleText.attr('transform',
strTranslate(transform.x, transform.y) +
strScale(Math.min(1, transform.scale)) +
strTranslate(transform.tx, transform.ty));
var scale = Math.min(1, transform.scale);

if(scale) {
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I wish we could reproduce this ourselves, but some of the data we have from the Word tests suggests that there's some minimum scale that won't break things. There's certainly some size that succeeds but is already useless for practical purposes so could be deleted, somewhere between 0.1 and 0.01? Ideally we'd make this configurable but maybe we can hardcode something in that range to start?

titleText.attr('transform',
strTranslate(transform.x, transform.y) +
strScale(scale) +
strTranslate(transform.tx, transform.ty));
} else {
titleText.style('display', 'none');
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OIC, you prevent even setting the transform attribute when we're going to hide the text. That seems reasonable. After a little investigation it seems we DON'T delete empty slice paths, so what we're seeing from Word must be an extra automatic optimization it does to remove elements with no visible impact. I wish it extended that optimization to scaled-down text 😜

What happens if we later edit this pie, giving this slice nonzero size? Do we reuse the element - and if so do we need to clear the display: none in the if(scale) block?

}
});

// now make sure no labels overlap (at least within one pie)
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