# set terminal png transparent nocrop enhanced font arial 8 size 420,320 # set output 'surface2.4.png' set dummy u,v set key bmargin center horizontal Right noreverse enhanced autotitles nobox set parametric set view 45, 50, 1, 1 set isosamples 50, 10 set hidden3d offset 1 trianglepattern 3 undefined 1 altdiagonal bentover set ztics border in scale 1,0.5 nomirror norotate offset character 0, 0, 0 -1.00000,0.25,1.00000 set title "Parametric Torus" set urange [ 0.00000 : 6.28319 ] noreverse nowriteback set vrange [ 0.00000 : 6.28319 ] noreverse nowriteback set zrange [ -1.00000 : 1.00000 ] noreverse nowriteback splot (1-0.2*cos(v))*cos(u),(1-0.2*cos(v))*sin(u),0.2*sin(v)