# set terminal pngcairo background "#ffffff" enhanced font "arial,9" fontscale 1.0 size 512, 384 # set output 'transparent_solids.2.png' set bar 1.000000 front unset border set style fill transparent solid 0.65 border set style circle radius graph 0.02, first 0.00000, 0.00000 set style ellipse size graph 0.05, 0.03, first 0.00000 angle 0 units xy set dummy u, v unset key set label 1 "Kuen's Surface" at screen 0.57, 0.9, 0 left norotate font "frscript,20" back nopoint set object 1 rect from screen 0, 0, 0 to screen 1, 1, 0 set object 1 behind clip lw 1.0 dashtype solid fc rgb "gray" fillstyle solid 1.00 border lt -1 set style textbox transparent margins 1.0, 1.0 border unset logscale set parametric set view 122, 357, 1.35, 1.08 set isosamples 51, 51 set hidden3d back offset 1 trianglepattern 3 undefined 1 altdiagonal bentover set style data lines set xyplane relative 0 unset xtics unset ytics unset ztics unset paxis 1 tics unset paxis 2 tics unset paxis 3 tics unset paxis 4 tics unset paxis 5 tics unset paxis 6 tics unset paxis 7 tics set urange [ -4.50000 : 4.50000 ] noreverse nowriteback set vrange [ 0.0500000 : 3.09159 ] noreverse nowriteback set paxis 1 range [ * : * ] noreverse nowriteback set paxis 2 range [ * : * ] noreverse nowriteback set paxis 3 range [ * : * ] noreverse nowriteback set paxis 4 range [ * : * ] noreverse nowriteback set paxis 5 range [ * : * ] noreverse nowriteback set paxis 6 range [ * : * ] noreverse nowriteback set paxis 7 range [ * : * ] noreverse nowriteback set lmargin at screen 0.1 set bmargin at screen 0.1 set rmargin at screen 0.9 set tmargin at screen 0.9 set pm3d depthorder set pm3d interpolate 1,1 flush begin noftriangles border lt black linewidth 0.500 dashtype solid corners2color mean set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front noinvert bdefault unset colorbox x(u,v) = 2.*a*(cos(u)+u*sin(u))*sin(v) / (1+u**2.*(sin(v))**2) y(u,v) = 2.*a*(sin(u)-u*cos(u))*sin(v) / (1+u**2.*(sin(v))**2) z(u,v) = a*log(tan(v/2.))+2.*cos(v)/(1+u**2.*(sin(v))**2) a = 1.0 GPFUN_x = "x(u,v) = 2.*a*(cos(u)+u*sin(u))*sin(v) / (1+u**2.*(sin(v))**2)" GPFUN_y = "y(u,v) = 2.*a*(sin(u)-u*cos(u))*sin(v) / (1+u**2.*(sin(v))**2)" GPFUN_z = "z(u,v) = a*log(tan(v/2.))+2.*cos(v)/(1+u**2.*(sin(v))**2)" splot x(u,v), y(u,v), z(u,v) with pm3d