contour in gnuplot

[mohammed mouhcine]

my script:::

# Set terminal and output 
set terminal postscript enhanced color 
set output 'plot.ps' 
# Set various features of the plot 
set pm3d 
unset surface  # don't need surfaces 
set view map 
set contour 
set key outside 
set cntrparam cubicspline  # smooth out the lines 
set cntrparam levels 50    # sets the num of contour lines 
set pm3d interpolate 20,20 # interpolate the color 
# Set a nice color palette 
set palette model RGB defined ( 0"black", 1"blue", 
2"cyan",3"green",4"yellow",\ 
     5"red",8"purple" ) 
# Axes 
set xlabel 'X' 
set ylabel 'Y' 
set format x '%.1f' 
set format y '%.1f' 
set format z '%.2f' 
set size square 
# Now plot 
splot 'data.dat' using 1:2:3 notitle with lines lt 1

data file :::

 0.00000 0.00000 0.00000 
 0.10000 0.00000 0.00000 
 0.20000 0.00000 0.00000 
 0.30000 0.00000 0.00000 
 0.40000 0.00000 0.00000 
 0.50000 0.00000 0.00000 
 0.60000 0.00000 0.00000 
 0.70000 0.00000 0.00000 
 0.80000 0.00000 0.00000 
 0.90000 0.00000 0.00000 
 1.00000 0.00000 0.00000 
 0.00000 0.10000 0.00000 
 0.10000 0.10000 0.00869 
 0.20000 0.10000 0.01654 
 0.30000 0.10000 0.02276 
 0.40000 0.10000 0.02676 
 0.50000 0.10000 0.02813 
 0.60000 0.10000 0.02676 
 0.70000 0.10000 0.02276 
 0.80000 0.10000 0.01654 
 0.90000 0.10000 0.00869 
 1.00000 0.10000 0.00000

in complation : erreur after compulation:::
"d.gnu", line 14: undefined variable: quot

[Ethan Merritt]

On Friday, 11 November 2016 08:46:39 PM mohammed mouhcine wrote:

The script and data file work for me, with one change.

• When the commands are issued as shown, I get the warning message
  line 21: warning: Cannot contour non grid data. Please use "set dgrid3d".

• When I add the line "set dgrid3d", the commands produce a pm3d+contour
  plot as requested.

tested in versions 4.6.6 5.0.5 and current cvs

Ethan

my script:::
~~~

Set terminal and output

set terminal postscript enhanced color
set output 'plot.ps'

Set various features of the plot

set pm3d
unset surface # don't need surfaces
set view map
set contour
set key outside
set cntrparam cubicspline # smooth out the lines
set cntrparam levels 50 # sets the num of contour lines
set pm3d interpolate 20,20 # interpolate the color

Set a nice color palette

set palette model RGB defined ( 0"black", 1"blue",
2"cyan",3"green",4"yellow",\
5"red",8"purple" )

Axes

set xlabel 'X'
set ylabel 'Y'
set format x '%.1f'
set format y '%.1f'
set format z '%.2f'
set size square

Now plot

splot 'data.dat' using 1:2:3 notitle with lines lt 1
~~~

data file :::
~~~
0.00000 0.00000 0.00000
0.10000 0.00000 0.00000
0.20000 0.00000 0.00000
0.30000 0.00000 0.00000
0.40000 0.00000 0.00000
0.50000 0.00000 0.00000
0.60000 0.00000 0.00000
0.70000 0.00000 0.00000
0.80000 0.00000 0.00000
0.90000 0.00000 0.00000
1.00000 0.00000 0.00000
0.00000 0.10000 0.00000
0.10000 0.10000 0.00869
0.20000 0.10000 0.01654
0.30000 0.10000 0.02276
0.40000 0.10000 0.02676
0.50000 0.10000 0.02813
0.60000 0.10000 0.02676
0.70000 0.10000 0.02276
0.80000 0.10000 0.01654
0.90000 0.10000 0.00869
1.00000 0.10000 0.00000
~~~
in complation : erreur after compulation:::
"d.gnu", line 14: undefined variable: quot

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contour in gnuplot

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[mohammed mouhcine]

thanks, it works