# set terminal svg size 600,400 dynamic enhanced fname 'arial'  fsize 10 mousing name "piecewise_3" butt dashlength 1.0 
# set output 'piecewise.3.svg'
set bar 1.000000 front
set border 16 front lt black linewidth 1.000 dashtype solid
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 key at screen 0.5, 0.15, 0 center center vertical Right noreverse enhanced autotitle nobox
set style textbox transparent margins  1.0,  1.0 border
unset logscale
set style data lines
unset xtics
unset ytics
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 title "Piecewise function of one parameter in 3D" 
set title  font ",15" norotate
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 colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front  noinvert bdefault
part1(x) = 0.5 + (9.*x-x**3)/ 24.
part2(x) = 1.0 + (x-3.0)**3 / 48.
save_encoding = "utf8"
GPFUN_part1 = "part1(x) = 0.5 + (9.*x-x**3)/ 24."
GPFUN_part2 = "part2(x) = 1.0 + (x-3.0)**3 / 48."
part1 = "part1: for x < 1  norm(x) ≈  ½ + (9x-x^3) / 24"
part2 = "part2: for x > 1  norm(x) ≈   1 +  (x-3)^3 / 48"
h = 15.0
## Last datafile plotted: "+"
splot [-2:2][-2:2] sample    [h=1:5]   '+' using (cos(h)):(sin(h)):(h),    [h=5:10]  '+' using (cos(h)):(sin(h)):(h),    [h=10:15] '+' using (cos(h)):(sin(h)):(h)