[whatwg] [html5] Canvas arc() as part of subpath
Ian Hickson
ian at hixie.ch
Thu Jan 12 13:25:25 PST 2006
On Thu, 12 Jan 2006, Tim Altman wrote:
>
> According to the arc() definition, "The [arc] start point is added to
> the list of points of the subpath and the current position is joined to
> that point by a straight line." However, Firefox 1.5 and Safari 2.0.2
> do not follow this rule unless there is drawing or an explicit moveTo()
> prior to the arc(). This should not be necessary, as according to the
> definition of beginPath() a) "When the context is created, a call to
> beginPath() is implied," and b) "The beginPath() method resets the list
> of subpaths to an empty list, and calls moveTo() with the point (0,0)."
>
> See http://timaltman.com/temp/canvas.html for a test case.
That's a bug in Webkit and Mozilla. (Apparently Mac Moz actually does it
right, though.)
Please file a bug on those products:
http://bugzilla.opendarwin.org/enter_bug.cgi?product=WebKit
https://bugzilla.mozilla.org/enter_bug.cgi?product=Core
Please cc me (ian at hixie.ch).
Cheers,
--
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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