Edward Peschko wrote:
1) ability to upload a gnuplot data file, and
have it turn into an
associated PNG graph inside mediawiki.
I'd prefer that, as with many things, we come up with our own syntax for
specifying graphs. Gnuplot is not the most intuitive of programs, and
ideally it would be possible for a non-technically-minded person to at
least put together a simple graph.
Actually, we might want to look into whether gnuplot is the best tool at
all. If I remember correctly, it's damn near impossible to generate a
histogram (bar graph) in gnuplot, and there's lots of other things that
are basically hardcoded into it. I believe Erik Zachte was using
another open-source plotting package, ploticus, for the wiki-stats page,
which might be another option.
I'd also recommend taking a look at JpGraph. It is very easy to program and
produces nice graphs. The only disadvantage is that it is under QPL which
doesn't bother Wikipedia but might hurt other projects.