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#
#
set samples 20
set isosamples 20
set hidden3d
set title "Hidden line removal of explicit surfaces"
set xrange [-3:3]
set yrange [-2:2]
splot 1 / (x*x + y*y + 1)
pause -1 "Hit return to continue (1)"
set xrange [-1:1]
set yrange [-1:1]
splot x*y / (x**2 + y**2 + 0.1)
pause -1 "Hit return to continue (2)"
set view 70,45
unset contour
set xrange [-3:3]
set yrange [-3:3]
splot sin(x*x + y*y) / (x*x + y*y)
pause -1 "Hit return to continue (3)"
set view 60,30
set xrange [-3:3]
set yrange [-3:3]
set zrange [-1:1]
set ztics -1,0.5,1
set grid z
set border 4095
splot sin(x) * cos(y)
pause -1 "Hit return to continue (4)"
unset grid
set ztics autofreq
set border 31
set view 75,230
set contour
replot
pause -1 "Hit return to continue (5)"
set view 80,30,1,1
set style data lines
# autoranging loses the verticals
set xrange [0:15]
set yrange [0:15]
splot "glass.dat" using 1
pause -1 "Hit return to continue (6)"
set view 50
set grid
replot
pause -1 "Hit return to continue (7)"
reset
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