On Tue, Nov 20, 2012 at 06:58:43AM +0100, Tavmjong Bah wrote:
On Mon, 2012-11-19 at 16:36 -0500, Hendrik Boom wrote:
As far as I know, the underlying SVG notation just has cubic splines, not circles. This would mean all things that look like circles aren't exact, though they may look round.
If I'm wrong, I'd be happy to be corrected.
Actually, an Inkscape circle (or ellipse) is described in SVG as a path with arcs, example a circle with r="100":
d="m 275,150 a 100,100 0 1 1 -200,0 100,100 0 1 1 200,0 z"
(you can see the path data with the XML editor). It will be converted to cubic Beziers if any path operations are applied to it. Also, the Cairo library will render it using cubic splines.
So it *is* defined as a circle, just often processed and rendered as splines. Thanks for the information.
-- hendrik