converting Vectors to Bitmaps with mask

[Alejandro Tejada]

I wonder if anyone have a script to convert a
group of polygon graphics in a bitmap image,
without using a screenshot. 

I'm aware of the tip for exporting a whole card image,

in the Ken Ray's website, but I'm looking for
a way of exporting the rectangle area of a group of
polygon graphics with their void areas as 
transparent pixels. Think of letters, like B,
with 2 voids areas that must be transparent.

If I use a screenshot, everything around the
group of graphics is captured in the image. 
Not exactly what I'm looking for.

Any help is welcome.

Thanks in advance.

Alejandro

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Useful sites:
http://www.sonsothunder.com/devres/metacard/tips/ and /revolution/tips/
http://lists.runrev.com/pipermail/metacard/ and /use-revolution/
http://wiki.macitworks.com/revdocs
http://www.google.com/advanced_search?q=site:lists.runrev.com

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