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<p class="MsoNormal">Thank you Hin-Tak for pointing out the discrepancy between the descriptive part of the vertTypoDescender spec and the example, I will add this proposed change to the current working draft amendment.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thank you,<o:p></o:p></p>
<p class="MsoNormal">Vladimir<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> mpeg-OTspec@yahoogroups.com <mpeg-OTspec@yahoogroups.com>
<b>On Behalf Of </b>Hin-Tak Leung htl10@users.sourceforge.net [mpeg-OTspec]<br>
<b>Sent:</b> Monday, October 29, 2018 7:50 PM<br>
<b>To:</b> mpeg-otspec@yahoogroups.com; opentype-list@indx.co.uk<br>
<b>Subject:</b> [mpeg-OTspec] vhea table, sign of descender<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><br>
<br>
Hi,<o:p></o:p></p>
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<p class="MsoNormal">I think one small part of the opentype spec probably needs to be reworded slightly. Recently I have an issue with HarBuzz doing strange values for Microsoft mincho for the descender in vhea.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Looking at ISO/IEC 14496-22:2015, section 5.7.7, in version 1.1 version of the table's "vertTypoDescender" description, it says "... For example, a font with an em of 1000 fUnits will set this field to 500".<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Then in the next page, the example is "Minus half the em-square height".<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I think in the first description a few "minus" and "-" should be added. Thus the anomaly with Microsoft mincho (its descender field in vhea has a +ve value...)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hin-Tak<o:p></o:p></p>
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