Betr.: [clean-list] Clean and plotting, etc. ...[loooongish]

[M.Kesseler@aia.nl]

Sorry that my previous message ended so abruptly. Wrong button. We recently
moved to Lotus Notes for our e-mail. It's not easy to get used to... sigh.

Jerzy Karczmarczuk wrote
>   * Hidden entity removal. Z-buffer, or silly Painter, or what not...
>   * Colour and lighting procedures, Gouraud/Phong interpolation, etc...
>
>   Again, I could continue... But it has nothing to do with the main
religious
>   issues on this mailing list, I assure you only that Clean is a VERY
GOOD
>   language to program such stuff.

I agree. Apart from the JPEG stuff, I have done some work on Clean code for
reading/writing PDF's, and I suspect it would have been far more difficult
if
I had used C/C++. Nice thing about such an approach is that you can leave
(or postpone) many rendering details to Acrobat Reader, and deal with the
graphical objects at a higher level.

A framework that deals with SVG might also be nice... (Similar imaging
model as
PDF).

> A lot of more work is needed, such as low-pass filtering (for
downsizing),
>  JPG and PNG input/output. (The JPG stuff exists independently, see Clean

>  contributions, but it should be reworked a bit.)

There is plenty of room for improvement in de JPEG code. However, I doubt
whether these pixel-level manipulations are the kind of thing that Clean
is most suited for. For me, Clean was nice to learn a bit about the JPEG
format.

regards,
Marco


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