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Groups > comp.graphics.apps.gnuplot > #2464

top surface disappears with interpolation in pm3d

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I have a script which successfully plots a 3d data set using pm3d with "at st" options.  If I change from "interpolate 1,1" to "interpolate 2,2" or "interpolate 0,0", it stops plotting the upper "t" surface.  Is this a symptom that my dataset is too large?  It has about 100 by 160 data points.  Any advice?

Full code is quoted below.  

#!/usr/bin/gnuplot
#

reset


set terminal png transparent font Helvetica 20
set output "output-RdYlBu.png"

set loadpath '/Users/balents/Dropbox/Documents/code/gnuplot-colorbrewer/diverging' \
    '/Users/balents/Dropbox/Documents/code/gnuplot-colorbrewer/gnuplot-colorbrewer/qualitative' \
    '/Users/balents/Dropbox/Documents/code/gnuplot-colorbrewer/sequential'


load 'RdYlBu.plt'

set palette negative
set border 16+4+1 linewidth 0
set tics nomirror
set xyplane at -0.5

set pm3d at st corners2color max interpolate 1,1
set hidden3d
unset surface
set cbrange [0:30]
splot 'test2.out'

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top surface disappears with interpolation in pm3d balents@gmail.com - 2014-05-12 12:14 -0700

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