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project: translate guile-tutorial.texi to use guile-cairo

From: Andy Wingo
Subject: project: translate guile-tutorial.texi to use guile-cairo
Date: Thu, 28 Apr 2011 11:41:31 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux)


Guile has a tutorial written by Daniel Kraft, which uses Scheme to
extend a C drawing process.  It uses Gnuplot for the drawing, which is
not GNU, and AFAIK not even free software.  It would be better to use
some other drawing library; for example, Cairo
(  The output would be to a png file instead
of to the screen.  Then we can also show a final stage of switching to
use guile-cairo, and having no C program; and possibly even using a GTK+
surface instead of a PNG surface, which would allow the same program to
show data to the screen instead of to a file.

What do people think?  Is anyone interested in taking up this task?


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