gnuplot 4.7.0 (CVS version as of 2013-02-20)
Arch Linux 32-bit
In some terminals gnuplot appears to be estimating the key size incorrectly: longer titles lead to proportionally too-long keys. This causes the result of a
set key tmargin left
command to be different from what is expected. Where one would expect the key to be at the left, it appears more toward the middle of the plot (because gnuplot incorrectly estimates the text width?).
I noticed this in the epslatex and png terminals, though with the postscript terminal gnuplot seems to get the key size correctly.
It is somewhat better (but not perfect) when I use a monospaced font such as Courier.
Attached and quoted below is a plot script which demonstrates the problem.
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#!/usr/bin/env gnuplot reset # key size looks fine with postscript terminal #set terminal postscript enhanced color #set output 'test.eps' # key size has problems with epslatex terminal, but png is simpler example #set terminal epslatex #set output 'test.tex' set terminal png set output 'test.png' set key tmargin left box set style data linespoints set multiplot layout 5,1 plot 'data.dat' u ($0):1 title 'longtitle' plot 'data.dat' u ($0):1 title 'reallylongtitle' plot 'data.dat' u ($0):1 title 'reallyreallylongtitle' set key tmargin left box reverse replot set key tmargin left Left box reverse replot unset multiplot
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