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List:       gnuplot-info
Subject:    [Gnuplot-info] surface grid using splot on experimental data
From:       Bernd Griesebock <griesebock () uni-wuppertal ! de>
Date:       2006-07-09 21:33:48
Message-ID: 44B1763C.5080108 () uni-wuppertal ! de
[Download RAW message or body]

Hi there,

I have a problem with the grid of the surface plotting some experimental
data.
I have two plots made (see attachment) using this little script:

++++++++++++++++++++++++++++++

unset clip points
set clip one
unset clip two
set bar 1.000000
set border 31 lt -1 lw 1.000
set xdata
set ydata
set zdata
set x2data
set y2data
set boxwidth
set dummy x,y
set format x "%g"
set format y "%g"
set format x2 "%g"
set format y2 "%g"
set format z "%g"
set angles radians
unset grid
set key title ""
unset key
unset label
unset arrow
set nolinestyle
unset logscale
set offsets 0, 0, 0, 0
set pointsize 1
set encoding iso_8859_1
unset polar
unset parametric
set view 60, 30, 1, 1
set samples 100, 100
set isosamples 10, 10
set surface
unset contour
set clabel '%8.3g'
set mapping cartesian
set hidden3d offset 1 trianglepattern 3 undefined 1 altdiagonal bentover
set cntrparam order 4
set cntrparam linear
set cntrparam levels auto 5
set cntrparam points 5
set size ratio 0 1,1
set origin 0,0
set data style lines
set function style lines
set xzeroaxis lt -2 lw 1.000
set x2zeroaxis lt -2 lw 1.000
set yzeroaxis lt -2 lw 1.000
set y2zeroaxis lt -2 lw 1.000
set tics in
set ticslevel 0
set ticscale 1 0.5
set mxtics default
set mytics default
set mx2tics default
set my2tics default
set xtics border mirror norotate autofreq
set ytics border mirror norotate autofreq
set ztics border nomirror norotate autofreq
unset x2tics
unset y2tics
set title "" 0.000000,0.000000  ""
set timestamp "" bottom norotate 0.000000,0.000000  ""
set rrange [ * : * ] noreverse nowriteback  # (currently
[-0.00000:10.0000] )
set trange [ * : * ] noreverse nowriteback  # (currently
[-5.00000:5.00000] )
set urange [ * : * ] noreverse nowriteback  # (currently
[-5.00000:5.00000] )
set vrange [ * : * ] noreverse nowriteback  # (currently
[-5.00000:5.00000] )
set xlabel "data point" 0.000000,0.000000  ""
set x2label "" 0.000000,0.000000  ""
set timefmt "%d/%m/%y\n%H:%M"
set xrange [ 20.0000 : 100.000 ] noreverse nowriteback
set x2range [ * : * ] noreverse nowriteback  # (currently
[-10.0000:10.0000] )
set ylabel "Zeit [s]" 0.000000,0.000000  ""
set y2label "" 0.000000,0.000000  ""
set yrange [ * : * ] noreverse nowriteback  # (currently
[-10.0000:10.0000] )
set y2range [ * : * ] noreverse nowriteback  # (currently
[-10.0000:10.0000] )
set zlabel "Absorption" 0.000000,0.000000  ""
set zrange [ * : * ] noreverse nowriteback  # (currently
[-10.0000:10.0000] )
set zero 1e-08
set lmargin -1
set bmargin -1
set rmargin -1
set tmargin -1
set locale "C"
splot 'normalized3d.dat' ev :10::3700::4300 u 1:(column(-1)/2):2

++++++++++++++++++++++++++

I know there are some parameters which are not used for plotting those
plots in the attachment.
Plot1 is more or less how I want them to look like. Plot2 is made from a
data file which has twice as much data points as the datafile for plot1.
As one can see the surface is too "dark".
Is it possible to make the grid of the surface in plot2 look like the
grid in plot1? To be more precisely, is it possible to use for the grid
(and only for the grid) every second data point instead of every data
point without loosing the resolution of the plot? I don't want something
like:
splot 'normalized3d.dat' ev 2:10::3700::4300 u 1:(column(-1)/2):2
Set iso/samples is not working for the data file.

How can I make the numbers not overlapping each other and not
overlapping the axes? How can I get rid of the -0.2 of the z-axes
(ticslevel should not change)?

Thank you for your help!

regards,
Bernd


["plot1.jpg" (image/jpeg)]
["plot2.jpg" (image/jpeg)]

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