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Subject: Re: [docbook-apps] SVG graphics, & MathML

----- Original Message ----- 
From: "Nicolas Pillot" <nicolas.pillot@polymtl.ca>
To: <docbook-apps@lists.oasis-open.org>
Sent: Friday, February 06, 2004 8:03 AM
Subject: [docbook-apps] SVG graphics, & MathML

>  Hello !
>  I have two small questions for you :-)
>   - I need to include MathML in DocBook. Googling, i found JEuclid, but it
>     seems quite old (no problem with that if it works). I will test it and
>     if it suits my needs, but i'd like to know if there is something else
>     there doing the convertion from MathML to SVG. If it is able rasterize
>     equations to a bitmap, that would a good thing too, but not mandatory.

If you are doing MathML, you need to spend some time in the W3C
MathML pages.  You will find other software listed under "software
supporting MathML":


>   - I had no problem so far processing extern SVG from DocBook, with
>     mediaobject, imageobject, imagedata, and the role attribute. (as in
>     sagehill.net example) But when i try embedded SVG, i get a message
>     no matching templates for svg, g & circle tag. And my idea was to
>     something that would convert inline SVG to extern SVG, but i wondered
>     there was any existing solution to that kind of thing.

Embedded SVG is supported by the XSL stylesheets.  You put it
inside the imageobject, and make sure the namespace on the
elements is correct.  Then the stylesheet will pass it through, with
the expectation that something downstream will interpret the
svg elements.  For example:

<svg xmlns="http://www.w3.org/2000/svg";>
   <g style="fill-opacity:0.7; stroke:black; stroke-width:0.1cm;">
     <circle cx="6cm" cy="2cm" r="100" style="fill:red;"
                     transform="translate(0,50)" />
     <circle cx="6cm" cy="2cm" r="100" style="fill:blue;"
                     transform="translate(70,150)" />
     <circle cx="6cm" cy="2cm" r="100" style="fill:green;"

Note that this usage will not validate with the DocBook DTD.
The DTD requires imageobject to have an imagedata child,
and other elements in a different name space will not validate.
Is there a particular reason you need to inline the SVG code?

Bob Stayton
Sagehill Enterprises
DocBook Consulting

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