I try to make a figure using multiplot, but some axes are weird (see figure). I use epslatex to generate a standalone tex file. It looks like a "box" limits the axis, but I cannot figure out what the corresponding option is.
The code used to generate the figure is below.
reset
set term epslatex color standalone header \
"\\usepackage[utf8]{inputenc}\n\\usepackage[T1]{fontenc}\n\\usepackage{cmbright}\n"
set output 'correlations.tex'
set pm3d at b
set pm3d map
unset surface
set pm3d corners2color c4
eps = 1.e-6
f(x)=(log(abs(x)/eps+1))*sgn(x)
set palette functions 2*(gray), 1-2*abs((gray)-.5), 2-2*(gray)
zmax = 1
set cbrange [f(-zmax):f(zmax)]
SX=0.8; SY=0.8
set bmargin 0; set tmargin 0; set lmargin 0; set rmargin 0
X0=0.1; Y0=0.1
DX=0.46; DY=0.64
set size X0+SX+DX,Y0+SY+DY
set origin 0,0
#
# Multiplot
#
set multiplot
#
# bottom left
#
set origin X0,Y0
unset colorbox
unset key
set size square SX,SY
xmax = 5
xshift = 0
set xrange [-xmax-xshift:xmax-xshift]
set yrange [-xmax:xmax]
set xlabel '$x_\parallel$'
set ylabel '$x_\perp$'
set xtics -5,5,5
set ytics -5,5,5
datafile = '../Résultats/correl_pm_smooth2f1.0cutoff5.0xMax5.0nX61.dat'
splot datafile u 1:2:(f($3)) w l t '',\
datafile u 1:(-$2):(f($3)) w l t ''
#
# top left
#
set origin X0,Y0+DY
set xlabel ''
set ylabel ''
set xtics ("" -5, "" 0., "" 5)
datafile = '../Résultats/correl_pm_smooth2f0.0cutoff5.0xMax5.0nX61.dat'
splot datafile u 1:2:(f($3)) w l t '',\
datafile u 1:(-$2):(f($3)) w l t ''
#
# top right
#
set origin X0+DX,Y0+DY
set xtics ("" -5, "" 0., "" 5)
set ytics ("" -5, "" 0., "" 5)
datafile = '../Résultats/correl_pm_smooth2f0.5cutoff5.0xMax5.0nX61.dat'
splot datafile u 1:2:(f($3)) w l t '',\
datafile u 1:(-$2):(f($3)) w l t ''
set origin X0+DX,Y0
set colorbox
set xtics -5,5,5
datafile = '../Résultats/correl_pm_smooth2f5.0cutoff5.0xMax5.0nX61.dat'
splot datafile u 1:2:(f($3)) w l t '',\
datafile u 1:(-$2):(f($3)) w l t ''
unset multiplot