[Webkit-unassigned] [Bug 23460] New: [Cg] Canas arcTo looks different on win and mac

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Jan 21 12:41:49 PST 2009


https://bugs.webkit.org/show_bug.cgi?id=23460

           Summary: [Cg] Canas arcTo looks different on win and mac
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://philip.html5.org/demos/canvas/arcto-inf.html
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: krit at webkit.org


If you have an angle of 0 and a radius > 0, the mac and win port handle arcTo
different.

The mac port just adds (x1,y1) to the current path and draws a line of (x0,y0)
to (x1,y1). http://philip.html5.org/demos/canvas/arcto-inf.png

The win port draws to parallel lines to the infity. One throug (x1,y1)->(x0,y0)
and the second parallel to this line with the distance of the radius.


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