Re: [docbook-apps] svg images, html, v5

["Bob Stayton" <bobs@sagehill.net>]

Hi Dave,
I'm not clear what your intentions are for sizing, but you might want to 
try using contentwidth instead of width, or perhaps both contentwidth and 
width attributes on your imagedata (and contentdepth and depth) to give you 
complete control.  Normally "width" is supposed to be the size of the 
viewport, and contentwidth is the desired image size.  But the stylesheets 
try to interpret a width without a specified contentwidth attribute as the 
desired image width because that is what people expect it to do. But to me 
it just perpetuates the confusion between the two attributes.

And then there is the question of how the browser interprets the external 
pixel specs and the internal SVG pixel specs.  That I can't help you with. 
8^)

If you are wondering why a table is used, that is one way in HTML to 
specify a viewport larger than the image, that is, a block that takes up 
more space on the screen than the image itself.  The table sizing defines 
the viewport from your width and depth attributes.

Bob Stayton
Sagehill Enterprises
DocBook Consulting
bobs@sagehill.net


----- Original Message ----- 
From: "Dave Pawson" <davep@dpawson.co.uk>
To: "Docbook Apps" <docbook-apps@lists.oasis-open.org>
Sent: Friday, November 30, 2007 1:27 AM
Subject: [docbook-apps] svg images, html, v5


> From Bobs book I have
>
> <mediaobject id="MousePicture">
> <imageobject role="fo">
> <imagedata format="SVG" fileref="mouse.svg"/>
> </imageobject>
> <imageobject role="html">
> <imagedata format="PNG" fileref="mouse.png"/>
> </imageobject>
> </mediaobject>
>
> From my svg I have
> <svg width="916pt" height="446pt"
>  viewBox="0.00 0.00 916.00 446.00" xmlns="http://www.w3.org/2000/svg"; 
> xmlns:xlink="http://www.w3.org/1999/xlink";>
>
> I combine this to create
>
>
> <imagedata format="SVG" fileref="sys.svg" width="1433" depth="698"/>
>
>
>
> The rendered HTML shows about 1/4 of the image in a scroll box,
> which is in a table with strange sizing?
>
> <table border="0"
>    summary="manufactured viewport for HTML img" cellspacing="0"
>    cellpadding="0" width="1433">
>
>  <tr style="height: 698px">
>    <td><object
>       data="../sys.svg"
>       type="image/svg+xml"
>       height="698">
>       </object>
>     </td>
>    </tr>
>   </table>
>
>
> Am I missing something on the sizing?
>
> Rendered in Firefox btw.
>
> regards
>
> -- 
> Dave Pawson
> XSLT XSL-FO FAQ.
> http://www.dpawson.co.uk
>
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