svg for italic y has small piece missing

[Ray Papworth]

If I make an svg image for italic y using MathJax-demos-node/direct and typing

./tex2svg --inline=false y > y.svg

Then examining the image at a large size there is a part of the curve missing at the top right.

Thanks.

[Davide Cervone]

The font metrics in MathJax are given in em units to 3 decimal places.  Most characters are about .5em wide, that means the resolution is about 1/500 of the width of the character, so if you enlarge the character by too large an amount, the round-off for that resolution can become significant.  You are seeing the results of that limited resolution in the bounding box information.

If you are in a situation where you can use CSS, then you should be able to use

svg {

  overflow: visible;

}

(or add overflow:visible to the style attribute on the svg element) in order to see the full character even if the viewBox is slightly too small.

Davide

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