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<p>The existing proposal prohibits an implied/interpolated point
between a quadratic off-curve point and a cubic off-curve point:</p>
<blockquote>
<p>Either all the off-curve points between any two on-curve points
(with wrap-around) have the CUBIC flag clear, or they all have
the CUBIC flag set.<br>
</p>
</blockquote>
<p>So the question of whether to allow and what to do about implied
cubic on-curve points should be completely separable from the
treatment of implied quadratic on-curve points. I don't think
anyone has proposed (or otherwise has in mind) removing implied
quadratic on-curve points from the specification or altering how
they're processed.</p>
<p>Skef<br>
</p>
<div class="moz-cite-prefix">On 10/2/23 14:33, Hin-Tak Leung wrote:<br>
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<blockquote type="cite"
cite="mid:500560348.4407822.1696282403719@mail.yahoo.com">
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<div>I'd just like to raise two points: </div>
<div><br>
</div>
<div>- while the rendering system cannot be specified to cope
with arbitrary amount or type of font brokenness, the problem
with disallowing implied on-curve cubic points, or mandating
that off-curve cubic points must be in pairs, is that
off-curve points (and implied on-curve points) are very
frequently used and beneficial in quadratics. You shouldn't
take away capability that is not only allowed, but encouraged.</div>
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