Re: cairopng terminal

[Peter D. <pc...@wi...>]

> I finally got around to implementing a quick and dirty cairopng hack
> that Timothée intimated in March[.]

It turns out that hack was insufficient, among other things, for
multiplots; the attached patch implements multiplots as a successive
sequence of PNGs in the form <filename>-#.png.

The resultant PNGs can be composed with something like:

    convert plot-0.png plot-1.png -composite plot-2.png -composite plot.png

Is there any advantage over the simple `convert plot.pdf plot.png'?
The image quality, above all, seems to be superior to the naive
conversion.