Y axis scaling bug

OK. I made the changes that Darren Dale suggested and the

    > plot now looks good.

Great, I take it you'll commit these to CVS....

    > Done. The file is uploaded.

OK, thanks. I'll see if I can get any insight into the PS bug. It
may be, as you suggest, a line size issue. That looked like a pretty
dense spectrum you plotted.

If you were following the user list, Jin-chung found a pathological
case where the agg renderer runs out of ink for extremely long dense
paths that cover over 4 Mega-pixels with ink. His problem can be
solved by breaking up really long paths into separate paths (not
implemented yet). It may be that the same thing is needed in
backend_ps to accommodate gv.