Hi Chris,
Rendering two images side-by-side in FO output is
not expected behavior. The selection process takes into account all the
allowed objects:
<xsl:template
name="select.mediaobject.index">
<xsl:param
name="olist"
select="imageobject|imageobjectco
|videoobject|audioobject|textobject"/>
...
You say you got both the .svg and the .png image in
your FO output? I copied and pasted your example into a test file and
processed it with the stock 1.76.1 stylesheet and I got just the .svg
image.
Bob Stayton
Sagehill Enterprises
----- Original Message -----
From:
Chris Ridd
To:
Sent: Thursday, September 29, 2011 3:29
AM
Subject: [docbook-apps] Image callouts
and roles
I'm using role attributes and the docbook stylesheets (successfully) to
use one image format when rendering to FO, and other when rendering to HTML
(i.e. epub).
<figure
xml:id="foo"><title>Foo</title>
<mediaobject>
<imageobject
role="fo">
<imagedata
fileref="images/DIT-local.pdf"/>
</imageobject>
<imageobject
role="html">
<imagedata
fileref="images/DIT-local.png"/>
</imageobject>
</figure>
However I have a couple of images using callouts, and using roles like
that doesn't seem to work:
<screenshot>
<mediaobject>
<imageobjectco
role="fo">
<areaspec>
<area coords="50,443,129,463"
xml:id="Setting_Up_init_user"/>
</areaspec>
<imageobject>
<imagedata fileref="images/MVC-DIT-structure.svg"
scale="50"/>
</imageobject>
</imageobjectco>
<imageobject role="html">
<!--
<areaspec>
<area coords="50,443,129,463"
xml:id="Setting_Up_init_user"/>
</areaspec>
-->
<imagedata
fileref="images/MVC-DIT-structure.png" scale="50"/>
</imageobject>
</mediaobject>
</screenshot>
The SVG is just a wrapper that references the similarly named PNG and
then adds some callout bugs.
Rendering that to FO results in two images side-by-side. Not sure if
that's a bug, or expected behaviour. It isn't what I want though.
However if I change the second imageobject to an imageobjectco, which
seems the logical structure, the <area> is problematic - I have a single
calloutlist that needs to refer to the "same" callout in either image. And I
can't have two <area>s with have the same xml:id :-(
I hate image callouts! :-)
Is there a more correct way to organize my two alternate
images?
Cheers,
Chris
