Re: Recognising a browser with MathML/SVG etc capabilities

In-reply-to: Your message of Wed, 29 Nov 2000 22:15:14 +0100."
             <008d01c05a49$7883f440$f42c1bd4@fgm> 
> Hello in here,
> 
> Sorry to intrude as a newcomer, but is there some way to receive the list in
> daily digest format ? The subscription welcome didn't include any
> information that I saw about this feature.
> 
> I may have what seems a bug in SVG both in 4.0 and 4.1. If I understand
> properly, and if the Adobe plug-in makes a proper rendering, the Amaya
> rendering of lines is incorrect (or at least not what I understand it should
> be: I'm really debuting on SVG). Here is the issue:
> 
> (no transformations)
> An instuction like this one does not draw a horizontal line:
>     <line class="defline" x1="060" y1="040" x2="90" y2="040" />
> And an instruction like this one does not draw a vertical line:
>     <line class="defline" x1="150" y1="350" x2="150" y2="320" />
> 
> Apparently, Amaya starts from what looks like the proper position, but
> finishes off by (line width)/2 in the trigonometric sense. That is, drawing
> horizontals from left to right, the right endpoint is too high by half a
> line width, and drawing verticals from bottom to top, the top endpoint if
> off to the left by half a line width. This is particularly evident if one
> increases stroke-width in the stylesheet.

You're right. You made a good analysis of the Amaya bug.
It will be fixed in the next release.

> This small (terrible looking) sample exhibits the problem:
>     http://www.osinet.fr/code/svg1.svg
> Displays straight lines in IE5+Adobe 2.0beta, but stairs in Amaya 4.0/4.1
> 
> But then, maybe I missed something regarding SVG lines: I'm just starting on
> SVG.
> 
> Thanks for your concern.
> 
> Frédéric G. MARAND
> Le glossaire OSInet de la Net-Economie
> http://www.osinet.fr/code/glo.asp
> 
> ----- Original Message -----
> From: <Irene.Vatton@inrialpes.fr>
> To: <cherry@neta.com>
> Cc: <www-amaya@w3.org>
> Sent: Wednesday, November 29, 2000 9:36 PM
> Subject: Re: Recognising a browser with MathML/SVG etc capabilities
> 
> 
> > In-reply-to: Your message of Wed, 29 Nov 2000 12:19:14 -0700."
> >              <3A2556B2.506E@neta.com>
> > > Paul, Amaya does a poor job of MathML. Mozilla does even less. Mozilla
> >
> > Amaya handles only the presentation mark-up. I guess it's why you say that
> it
> > does
> > a "poor job".
> >
> > > will display only XML files. Amaya will do limited MathML inbeded
> > > in HTML. It seems to me Amaya 4.1 does less MathML than the older
> >
> > Amaya is now able to display/edit MathML documents, and XHTML documents
> > that embed MathML expressions too.
> >
> > > versions. I have MathML examples that worked with the old Amaya.
> >
> > If you found out a bug in the next release, we will be happy to have
> access
> > to examples that show the bug.
> >
> > > I have yet to find a way to verify MathML.
> > > Is there any way to verify MathML?
> > > Regards, Jim FitzSimons
> > >
> > > Paul Gartside wrote:
> > > >
> > > > Is there a `right' way for a web server to detect that a browser can
> > > > properly display SVG or MathML?
> > > >
> > > > Does Amaya provide this information?
> > > >
> > > > Something better than checking the user agent (is it Amaya? is it
> > > > Mozilla/5.0? is it...?).
> > > >
> > > > Thanks,
> > > >
> > > > Paul.
> > >
> >
> >   Irene.
> >
> >
> >
> 

  Irene.

Received on Wednesday, 29 November 2000 16:54:01 UTC