How fast is Batik when rendering DOM changes?

[Kenneth McDonald <ke...@sbcglobal.net>]

I suspect this mostly boils down to, does Batik do a complete re-render 
every time the SVG DOM changes? Or is it able to perform only 
'differential' rendering, and if so, how clever is it about restricting 
the amount of re-rendering needed?

Thanks,
Ken

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Re: How fast is Batik when rendering DOM changes?

[th...@kodak.com]

Hi Kenneth,

Kenneth McDonald <ke...@sbcglobal.net> wrote on 08/07/2007 
03:51:19 PM:

> I suspect this mostly boils down to, does Batik do a complete re-render 
> every time the SVG DOM changes?

   This depends on the DOM changes, but by and large Batik does 
incremental rendering.

>  Or is it able to perform only 'differential' rendering, and if 
> so, how clever is it about restricting the amount of re-rendering 
needed?

   It is good but not perfect.  Like most graphics engines I'm aware
of there are some places where we fail to notice that things haven't 
really changed, or where we 'widen' the area that needs rendering.

   For the majority of common changes we handle them well.


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