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discrete gnuplot demo

#
# $Id: discrete.dem%v 3.38.2.45 1993/01/11 04:11:27 woo Exp woo $
#
#
set contour
set title "Demo of specifying discrete contour levels  -  default contours"
splot x*y

#set discrete levels
set cntrparam levels discrete 0, 15, 75
set title "3 discrete contours at 0 15 & 75"
replot

#show contour setting
show contour

#save settings
save set 'temp.set'

#set incremental levels
set cntrp level incr -20, 5, 9
set title "9 incremental contours starting at -20, stepping by 5"
replot

#bring back save settings
load 'temp.set'

replot

#restore defaults
set title ""
set nocontour
set cntrparam levels auto 5