# set terminal svg size 600,400 dynamic enhanced fname 'arial'  fsize 10 mousing name "hypertext_1" butt solid 
# set output 'hypertext.1.svg'
unset border
unset key
set datafile separator "	"
set size ratio 1 1,1
set style data lines
set noxtics
set noytics
set title "Hypertext is shown when the mouse is over a point" 
Scale(size) = 0.08*sqrt(sqrt(column(size)))
City(String,Size) = sprintf("%s\npop: %d", stringcolumn(String), column(Size))
GPFUN_Scale = "Scale(size) = 0.08*sqrt(sqrt(column(size)))"
GPFUN_City = "City(String,Size) = sprintf(\"%s\\npop: %d\", stringcolumn(String), column(Size))"
save_encoding = "utf8"
x = 0.0
plot 'cities.dat' using 5:4:(City(1,3)):(Scale(3))      with labels hypertext point pt 7 ps var lc rgb "#ffee99",      'cities.dat' using 5:4:(City(1,3)):(Scale(3))      with labels hypertext point pt 6 ps var lc rgb "black" lw 0.1