On 2/11/07, Geoff Russell <geoffrey.russell at gmail.com>
wrote:> Hi,
>
> 1. I started work on a metapost graphics driver a week or so ago and it is
> gradually taking shape. I'm building up my own test cases into a
> script as I go, but
> figured you may have a "canonical testing script" of cases a
driver must handle?
>
I typically use demo(graphics) for initial development and then things
like example(plotmath) to make sure I'm getting font encoding working
properly.
> 2. The clipping function looks like being a tricky problem. It seems
> to me that the
> callers of the driver assume that clipping affects all following calls
> until the next
> clipping call resets the clipping box. With metapost, the clipping
> function clips the
> current graphics region and has no effect on following drawing functions.
I'm
> not sure how to handle this --- the 2 models are very different.
>
Sounds like you get to make a lot of clipping calls in metapost.
> Cheers,
> Geoff Russell
>
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--
Byron Ellis (byron.ellis at gmail.com)
"Oook" -- The Librarian