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Message-ID: <3F845E86.6050907@leverageweb.com>
Date: Wed, 08 Oct 2003 14:59:18 -0400
From: Geoff Howard <cocoon@leverageweb.com>
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To: users@cocoon.apache.org
Subject: Re: svg2png dynamic static generation
References: <000101c38dcd$3df69c50$d70614ac@dallas.sil.org>
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Lars Huttar wrote:
> I'm pretty much a cocoon newbie, but here's what I know:
> In your sitemap you can use the resource-exists action to
> take different routes through the pipeline depending on the
> existence of a file.  E.g.:
> 
>       <map:match pattern="picture-*.png">
>         <map:act type="resource-exists">
>           <map:parameter name="url" value="picture-{1}.png" />
>           <!-- If it exists, read it. -->
>           <map:read type="resource"
> 			src="picture-{../1}.png" mime-type="image/png" />
>         </map:act>
>         <!-- Otherwise, generate the png from svg: -->
>         <!-- This part I don't know how to do. :-) Anyone? -->
> 	   <!-- Especially the part about saving the result to a file. -->
>       </map:match>
> 
>>because serializing svg to png is very slow, is it possible to do
>>somehow next:
>>
>>-> if picture-{id} exists -> map:read src="picture-{id}"
>>-> if not -> generate png file from svg and then save it to filesystem
>>and then show it.
>>
>>It would make things much faster.


I missed the first part of the question, but did you know that Cocoon is 
  probably already caching these for you?  What is your current pipeline 
like?

Geoff


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