Which gnuplot terminal type should I use in org-babel-gnuplot with latex export

Question

All gnuplot examples on http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-gnuplot.html use the png terminal. However, when exporting to latex I'd rather like to generate vector graphics. Latex terminal seems to be outdated. Eps does not work as a result of how orgmode invokes pdflatex. So which terminal type can I use with org-babel-gnuplot and latex export?

As an alternative question: How can I make org-mode call pdflatex so that it uses the eps graphics?

Answer 1

I use the postscript output, and directly convert the output to PDF on the fly. I also change some more things during this, including the default postscript colors (for two color plots, red and blue is better than red and green, since some people are red-green-blind, for example). Another obvious improvement is to run pdfcrop afterwards.

Anyway, the trick is to use the external command syntax for output.

I have a script that looks approximately like this: (actually it is now a python script, for the color substitution)

#!/bin/sh
epstopdf --filter --outfile "$1"
pdfcrop "$1" "$1"

and then in gnuplot I use:

set output "| /home/myself/.bin/gnuplot-to-pdf file.pdf"

I have however no idea how to combine this with org-babel-mode (nor an idea what that is). It could however work with essentially giving the default output file name file.pdf and also specifying this for org-babel-gnuplot?

Answer 2

These articles may help :

Include EPS graphics in pdflatex
org-exp-blocks.el — pre-process blocks when exporting org files

_{(Not having heard from you, I transformed my comment into an answer.)}