# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'polargrid.4.png'
set border 4096 front lt black linewidth 1.000 dashtype solid
set dummy t, y
set angles degrees
set tics front
set grid polar 30.000000
set grid noxtics nomxtics noytics nomytics noztics nomztics rtics nomrtics \
 nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
set grid front   linecolor rgb "gray"  linewidth 0.200 dashtype solid,  linecolor rgb "gray"  linewidth 0.200 dashtype solid
set raxis
set theta clockwise top
set key title "Polar gridded surface" enhanced font ":Bold"   center
set key rmargin top vertical Right noreverse enhanced autotitle nobox
set key noinvert samplen 0.5 spacing 1 width 0 height 0
set polar
set polar grid 360, 50 gauss kdensity scale 30  theta [0:360]  r [0:*]
set view  equal xyz
set size ratio -1 1,1
set style data lines
unset xtics
unset ytics
set rtics  norangelimit logscale 
set rtics   (25.0000, 50.0000, 100.000, 200.000)
set trange [ * : * ] noreverse nowriteback
set urange [ * : * ] noreverse nowriteback
set vrange [ * : * ] noreverse nowriteback
set xrange [ * : * ] noreverse writeback
set x2range [ * : * ] noreverse writeback
set yrange [ * : * ] noreverse writeback
set y2range [ * : * ] noreverse writeback
set zrange [ * : * ] noreverse writeback
set cbrange [ * : * ] noreverse writeback
set rlabel "log(r)" 
set rlabel  offset character 5, 0, 0 font "" textcolor lt -1 left norotate
set rrange [ 10.0000 : * ] noreverse writeback noextend
set logscale r 10
set lmargin  5
set rmargin at screen 0.7
set palette negative nops_allcF maxcolors 0 gamma 1.5 color model RGB 
set palette cubehelix start 0.5 cycles -1.5 saturation 1
set colorbox user
set colorbox vertical origin screen 0.8, 0.2 size screen 0.04, 0.6 front  noinvert bdefault
NO_ANIMATION = 1
## Last datafile plotted: "silver.dat"
plot 'silver.dat' using 1:2:3 with surface title "gauss kdensity",      '' using 1:2:3 with points pt 7 lc "green" title "with points"