SVG path conversion misalignment

SVG path conversion misalignment

[Thangalin via ntg-context]

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Hi there,

% SOT
\startbuffer[dna]
<svg><rect width="13.305" height="20.079" x="-21.056" y="139.358"
rx="6.058" ry="6.652" transform="rotate(-90)"/><path fill="#aeaeae"
d="M154.143 8.016v12.776c2.952-.672 5.143-3.266 5.143-6.388
0-3.123-2.19-5.717-5.143-6.388z"/></svg>
\stopbuffer

\starttext
  \placefigure{}{\includesvgbuffer[dna][conversion=mp]}
\stoptext
% EOT

In the PDF that's generated, the curve of the gray semi-circle is malformed
with respect to the blackground. It's like there's a small chip. The
expected result is shown here:

https://i.ibb.co/n7s8GPT/dna.png

Looks like a small precision error in some of the pathing or
transformation/rotation calculations.

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