# [html5] r1759 - /

whatwg at whatwg.org whatwg at whatwg.org
Thu Jun 12 18:49:29 PDT 2008

```Author: ianh
Date: 2008-06-12 18:49:29 -0700 (Thu, 12 Jun 2008)
New Revision: 1759

Modified:
index
source
Log:
[e] (0) Oops, an earlier change forgot to define the start/end points of the arc for whole-circumference arcs.

Modified: index
===================================================================
--- index	2008-06-13 01:47:24 UTC (rev 1758)
+++ index	2008-06-13 01:49:29 UTC (rev 1759)
@@ -19477,17 +19477,17 @@
The arc and its start and end points are defined as follows:

<p>Consider a circle that has its origin at (<var title="">x</var>, <var
+   points at <var title="">startAngle</var> and <var title="">endAngle</var>
+   along this circle's circumference, measured in radians clockwise from the
+   positive x-axis, are the start and end points respectively.

<p>If the absolute magnitude of the difference between the <var
title="">startAngle</var> and <var title="">endAngle</var> angles is equal
to or greater than 2π, then the arc is the whole circumference of this
circle.

-  <p>Otherwise, the points at <var title="">startAngle</var> and <var
-   title="">endAngle</var> along this circle's circumference, measured in
-   radians clockwise from the positive x-axis, are the start and end points
-   respectively. The arc is the path along the circumference of this circle
+  <p>Otherwise, the arc is the path along the circumference of this circle
from the start point to the end point, going anti-clockwise if the <var
title="">anticlockwise</var> argument is true, and clockwise otherwise.
Since the points are on the circle, as opposed to being simply angles from

Modified: source
===================================================================
--- source	2008-06-13 01:47:24 UTC (rev 1758)
+++ source	2008-06-13 01:49:29 UTC (rev 1759)
@@ -17109,17 +17109,17 @@

<p>Consider a circle that has its origin at (<var title="">x</var>,
<var title="">y</var>) and that has radius <var
+  title="">radius</var>. The points at <var title="">startAngle</var>
+  and <var title="">endAngle</var> along this circle's circumference,
+  measured in radians clockwise from the positive x-axis, are the
+  start and end points respectively.</p>

<p>If the absolute magnitude of the difference between the <var
title="">startAngle</var> and <var title="">endAngle</var> angles is
equal to or greater than 2π, then the arc is the whole
circumference of this circle.</p>

-  <p>Otherwise, the points at <var title="">startAngle</var> and <var
-  title="">endAngle</var> along this circle's circumference, measured
-  in radians clockwise from the positive x-axis, are the start and end
-  points respectively. The arc is the path along the circumference of
+  <p>Otherwise, the arc is the path along the circumference of
this circle from the start point to the end point, going
anti-clockwise if the <var title="">anticlockwise</var> argument is
true, and clockwise otherwise. Since the points are on the circle,

```