[cairo] how to interprete extents of rotated path
Theo.Veenker at let.uu.nl
Mon May 26 23:34:21 PDT 2008
Behdad Esfahbod wrote:
> On Mon, 2008-05-26 at 22:07 +0200, Theo Veenker wrote:
> > Hi,
> > I'm trying to get the bounding box of a path using
> > The returned numbers are OK when the path is not rotated, but when it is
> > rotated the bounding box returned doesn't make sense to me.
> > See http://www.let.uu.nl/~Theo.Veenker/personal/extents/ for my test
> > program and two images.
> Ugh. Didn't know about this.
> > What am I doing wrong here?
> Nothing. Wrong is the way we compute things internally. It's the same
> effect that I explained here, in another context:
> Just last night I was thinking about writing a stroke/path extents
> implementation that works on the double path directly, without any
> tesselation. That can easily fix this problem.
That's good to know. I'll be happy to test things if you want.
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