In article <389C8433.8D799243@inapg.inra.fr>, Gilles Tran 
<tra### [at] inapginrafr> wrote:

> The formula rings a bell. It may not be what I expected (I was 
> looking for something that would actually map the image around the 
> sphere) but it is probably what I had seen before. And yes it works 
> fine enough for my current project.

Wouldn't the mapping types built into image_map be enough? Or the 
mapping warps?

-- 
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/

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