Polyline with turnback

[tomwiel]

This test file looks different in Image32,
which is more noticeable due to the large x-scale (8) in the file:
Two black lines (actually polylines) are visually longer (scaled strokeWidth/2 is added) than expected.
Both polylines contain a turnback (180deg), for example ("h 10 -20"):
<path d="M 20 140 h 10 -20" stroke-width="4" stroke="black" />

Most things in the file are unrelated, so I made a simpler file2.

[tomwiel]

Angus, could you check this issue with the miterlimit:
The implied test-file values (default) are (stroke-linejoin: miter) and (stroke-miterlimit: 4).
Therefore the miter-cutoff (butt-like) is intended on sharp joins (eg. 180deg) only.
I added a polyline for miter in file3

[tomwiel]

I've found a solution: in path-grow functions:
Under (joinStyle = jsMiter): Use DoBevel(j, k) instead of DoSquare(j, k).

Also useful: in StrokeLineJoin_Attrib() assign:
hBevel: strokeJoin := jsButt;