making high-quality eps figures using gnuplot for inclusion in latex

Question

I make plots using gnuplot by

set term postscript eps color blacktext "Helvetica" 24
set output "filename.eps"

However, when I include the eps file in latex file, the quality of eps is not satisfactory.

I have also searched google a lot and saw some sites such as http://www.cs.cityu.edu.hk/~tanrui/eps.html, however, my figures are more complicated that theirs and hence their commands don't help me fully. I also checked GNUPLOT: Trying to increase the quality but my figures are eps, not pdf.

Can someone tell, how to improve the quality of figures.

Is the quality unsatisfactory as an eps file already or only in the final, Latex-compiled document. Please specify what exactly the problem is. — simmmons
Thanks. After inclusion into latex, the quality is not good: fine details seem to be lost. On seeing eps itself with evince, it looks fine. — user984260
How are you compiling the latex? Are you using pdflatex or regular latex? — mgilson
Maybe it's a problem of the pdf-viewer (i.e. the interpreter of the vector-graphic). I also use dvipdf together with gnuplot/latex and did not see any lost of quality — Raphael Roth

hmitcs hmitcs · Accepted Answer · 2014-01-10T17:18:06

you can try to increase the output resolution, for example:

set term postscript eps size 1024, 720 color blacktext "Helvetica" 24

Then use maximum figure width in latex

includegraphics[width = \paperwidth]{yourfigurefilepath}