# set terminal canvas rounded size 600,400 enhanced fsize 10 lw 1.6 fontscale 1 name "surface2_8" jsdir "." # set output 'surface2.8.js' set dummy u, v set key bmargin center horizontal Right noreverse enhanced autotitle nobox set style increment default set parametric set view 50, 30, 1, 1 set isosamples 40, 20 set hidden3d back offset 1 trianglepattern 3 undefined 1 altdiagonal bentover set style data lines set xyplane relative 0 set title "Parametric Shell (automatic z range)" set urange [ 0.00000 : 6.28319 ] noreverse nowriteback set vrange [ 0.00000 : 6.28319 ] noreverse nowriteback set xrange [ * : * ] noreverse writeback set x2range [ * : * ] noreverse writeback set yrange [ * : * ] noreverse writeback set y2range [ * : * ] noreverse writeback set zrange [ * : * ] noreverse writeback set cbrange [ * : * ] noreverse writeback set rrange [ * : * ] noreverse writeback splot cos(u)*u*(1+cos(v)/2),sin(v)*u/2,sin(u)*u*(1+cos(v)/2)