> > I've been using Batik very successfully to generate raster thumbnails of
SVG
> > images for a web application.
> > A recent change to a beige background on the web site revealed to me
that
> > the PNG raster images did not have transparent backgrounds (the SVG
images
> > do correctly display with transparent backgrounds with Adobe plugin).
> > I've read through the source for Rasterizer and the PNG encoder classes,
but
> > it's not apparent how I can get tranparency working.
> > Can anyone point me in the right direction?
>
> As far as I know, batik PNG Transcoder support alpha channel correctly,
> however, some image viewer/browser doesn't support it. There is an
> option on PNG Transcoder KEY_FORCE_TRANSPARENT_WHITE which you can set
> during transcoding to workaround this problem.
>
> Please keep in mind that using Force Transparent White option the result
> image will display differently over a white background in a viewer that
> supports transparency.
>
> Regards
> Tonny Kohar
> --
> Sketsa
> SVG Graphics Editor
> http://www.kiyut.com

Tonny,
You are correct.
MS IE 5.5 does not correctly support the alpha-channel in the PNG.
Firefox does display it correctly.
I followed the numerous google trails and I'm now shaking my fist at M$ like
everyone else...

thanks
Dave




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