- From: <bugzilla@jessica.w3.org>
- Date: Sat, 15 May 2010 10:24:49 +0000
- To: public-html-bugzilla@w3.org
http://www.w3.org/Bugs/Public/show_bug.cgi?id=9740
Chris Apers <chrilith@hotmail.com> changed:
What |Removed |Added
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CC| |chrilith@hotmail.com
--- Comment #1 from Chris Apers <chrilith@hotmail.com> 2010-05-15 10:24:49 ---
Also, the explanation doesn't seem correct. In fact the two points (in current
implementations) seem more like control points. And effective points are the
ones at intersections between tangents an the circle.
--
Adds two control points defining, using last point of previous subpath, 2
tangents to the circle defined by arguments. Resulting subpath is an arc
starting at intersection point with the first tangent and ending at
intersection point with the second tangent.
--
Illustrated by the following example where the black disc is the previous
subpath and gray ones control points.
context.fillStyle = "gray";
context.beginPath();
context.translate(125, 25);
context.moveTo(20,18);
context.arcTo(40, 20, 10, 100, 100);
context.lineTo(100, 100);
context.stroke();
context.beginPath();
context.arc(40, 20, 4, 0, 2 * Math.PI, 1);
context.arc(10, 100, 4, 0, 2 * Math.PI, 1);
context.fill();
context.beginPath();
context.fillStyle = "black";
context.arc(20, 18, 4, 0, 2 * Math.PI, 1);
context.fill();
--
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Received on Saturday, 15 May 2010 10:24:50 UTC