[cairo-bugs] [Bug 7245] cairo_stroke_extents() gives wrong result for arcs in some cases

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=7245





------- Comment #3 from chris at chris-wilson.co.uk  2007-10-02 15:09 PST -------
(In reply to comment #2)
> I believe the bug is in the derivation of the mitre limit conditional

[chorus] Oh no it isn't!

The final equation is correct, it is just a misleading comment about the
condition  being secant(phi/2) <= ml (instead of 1 <= ml sin(phi/2) or
cosecant(phi/2) <= ml). So the bug appears related to incorrect intersection
vectors of the curves.


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