overlay images

[Chris Faulkner <ch...@gmail.com>]

Hello all

I am wondering whether it is possible to overlay two images in the
same table-cell. I have been through the archives and seen a similar
request and the advice was basically to use SVG which is reasonable.

MY only concern with this is the possible impact on performance. From
recollection, batik requires a large number of jar files which
slightly adds the the maintenance overhead.

So, is there any way that images can be overlapped ?

Thanks

Chris

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Re: overlay images

[Chris Faulkner <ch...@gmail.com>]

Hi

Thanks for feedback. It wasn't so much the hit on performance of
having the extra JAR involved, I understand the issues involved, it is
the necessity of running batik essentially to do no more than overlay
imagery.

One of my basic images that I need to overlay is generated by calls to
the Java Advanced Imaging (JAI) API, via http to a servlet container
so I am also exploring the option of overlaying images with this
route, i.e. I'll do it all in one call for a single image. This will
almost certainly be faster but does not give me the option to expand
in the future with the option of adding SVG based graphics if I needed
to.

Anyway, I am testing the relative performance of both approaches now.

I had initially thought that there might be an easy third option which
would be to put references to both images in the  .fo, and let FOP
overlay them.



Chris

On 5/5/05, Jeremias Maerki <de...@greenmail.ch> wrote:
> Just to expand on Louis' answer: Additional JARs only impact on
> performance during the warm-up/classloading stage when the virtual
> machine is started. After that there's no performance impact anymore,
> especially if you process your documents in a server service which is
> not started every time.
> 
> On 04.05.2005 09:51:37 Chris Faulkner wrote:
> > MY only concern with this is the possible impact on performance. From
> > recollection, batik requires a large number of jar files which
> > slightly adds the the maintenance overhead.
> 
> Jeremias Maerki
> 
> 
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> To unsubscribe, e-mail: fop-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: fop-users-help@xmlgraphics.apache.org
> 
>

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Re: overlay images

[Jeremias Maerki <de...@greenmail.ch>]

Just to expand on Louis' answer: Additional JARs only impact on
performance during the warm-up/classloading stage when the virtual
machine is started. After that there's no performance impact anymore,
especially if you process your documents in a server service which is
not started every time.

On 04.05.2005 09:51:37 Chris Faulkner wrote:
> MY only concern with this is the possible impact on performance. From
> recollection, batik requires a large number of jar files which
> slightly adds the the maintenance overhead.


Jeremias Maerki


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