set urange [0:2*pi]
set vrange [0:2*pi]
set zrange [-1:1] # imitate old 'set view' hack
splot (1-0.2*cos(v))*cos(u),(1-0.2*cos(v))*sin(u),0.2*sin(v)
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for minimal script to generate this plot
set autoscale z
set ticslevel 0. # reserve more space z direction.
set view ,,0.7,1.4 # crunch xyz, and re-extend z back to full size
set ztics autofreq
splot cos(v)**3*cos(u)**3,sin(v)**3*cos(u)**3,sin(u)**3
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here
for minimal script to generate this plot
set vrange [0:2*pi]
set autoscale z
splot (1-0.1*cos(v))*cos(u),(1-0.1*cos(v))*sin(u),0.1*(sin(v)+u/1.7-10)
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here
for minimal script to generate this plot
set title "Parametric Shell (clipped to limited z range)"
set isosamples 40,20
set view 50,30,1.0
set urange [0:2*pi]
set vrange [0:2*pi]
set zrange [-3:1.5]
splot cos(u)*u*(1+cos(v)/2),sin(v)*u/2,sin(u)*u*(1+cos(v)/2)
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here
for minimal script to generate this plot
set vrange [-pi:pi]
set isosamples 50,20
splot cos(u)+.5*cos(u)*cos(v),sin(u)+.5*sin(u)*cos(v),.5*sin(v) with lines, \
1+cos(u)+.5*cos(u)*cos(v),.5*sin(v),sin(u)+.5*sin(u)*cos(v) with lines
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here
for minimal script to generate this plot