DocBook <imagedata/> and scalefit attribute

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dnedrow
Posts: 60
Joined: Wed Jan 28, 2004 10:51 pm

DocBook <imagedata/> and scalefit attribute

Post by dnedrow » Thu Jun 09, 2005 10:03 pm

Is there a [relatively] simple means of defining the viewport size of an <imagedata/> tag to the size of another element, possibly the enclosing element?

For example, in PDF output, I want the image scaled to fit the size of <figure/>, or, at the worst, <para/>. Anyway to handle this for the sample shown below?

Code: Select all


   <para>Test
<figure>
<title>Static Web</title>
<mediaobject>
<imageobject role="html">
<imagedata fileref="diagrams/static.png"/>
</imageobject>
<imageobject role="fo">
<imagedata format="PDF" fileref="diagrams/static.pdf"/>
</imageobject>
</mediaobject>
</figure>
</para>
-David

george
Site Admin
Posts: 2100
Joined: Thu Jan 09, 2003 2:58 pm

Post by george » Fri Jun 10, 2005 11:29 am

Hi David,

I noticed you posted this on the xsl list, I think you have better chances to get a response on the docbook-apps list:

http://lists.oasis-open.org/archives/docbook-apps/
http://lists.oasis-open.org/

If someone here will know how to do what you asked we will surely post a reply.

Best Regards,
George

dnedrow
Posts: 60
Joined: Wed Jan 28, 2004 10:51 pm

Post by dnedrow » Fri Jun 10, 2005 2:04 pm

george wrote: I noticed you posted this on the xsl list, I think you have better chances to get a response on the docbook-apps list:
Good idea. I had forgotten about docbook-apps. Since this was more of a presentation issue, I hesitated to post to the main docbook list.

-David

dnedrow
Posts: 60
Joined: Wed Jan 28, 2004 10:51 pm

Post by dnedrow » Tue Jun 14, 2005 3:44 am

Paul A. Hoadley wrote: I think what you want to do is described in Bob Stayton's book here:

http://www.sagehill.net/docbookxsl/ImageSizing.html

In particular:

To keep a graphic for printed output at its natural size unless it
is too large to fit the available width, in which case shrink it to
fit, use scalefit="1", width="100%", and contentdepth="100%"
attributes.
This did work using the updated fo/graphics.xsl.

Eg.

Code: Select all


   <para>
<figure>
<title>Static Web</title>
<mediaobject>
<imageobject role="html">
<imagedata fileref="diagrams/static.png"/>
</imageobject>
<imageobject role="fo">
<imagedata scalefit="1" width="100%" contentdepth="100%"
format="PDF" fileref="diagrams/static.pdf"/>
</imageobject>
</mediaobject>
</figure>
</para>
Paul A. Hoadley wrote: DocBook XSL Stylesheets 1.68.1

You will need to replace fo/graphics.xsl with the current version from
CVS---this functionality only works post-1.68.1.
The odd thing is that the updated fo/graphics.xsl appears to require that img.src.path be defined. I simply set this to "'./'", but I wonder if this isn't a bug in the CVS stylesheet.

-David

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