On Mon, 2012-11-19 at 16:36 -0500, Hendrik Boom wrote:
On Mon, Nov 19, 2012 at 03:10:53PM -0500, Shawn H Corey wrote:
On Mon, 19 Nov 2012 19:53:32 +0100 || ΣΖΟ || <manostienen@...155...> wrote:
When i start to draw, thats the center point. Where i stop, is the edge. ...and that should be all
Hold down the SHIFT while drawing the circle. This allows you to draw the half-diagonal rather than the full diagonal. I know of no way to draw from centre to radius or to just draw the diameter. There is no circle drawing tool, just an oval drawing one. ☹
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.
Tav