1 set border -1 front linetype -1 linewidth 1.000
6 set xlabel "Red" tc rgb "red"
8 set ylabel "Green" tc rgb "green"
10 set zlabel "Blue" tc rgb "blue"
13 rgb(r,g,b) = int(r)*65536 + int(g)*256 + int(b)
15 splot 'rgb_variable.dat' using 1:2:3:(rgb($1,$2,$3)) with points pt 7 ps 4 lc rgb variable, \
16 '' using 1:2:3:(sprintf("0x%x",rgb($1,$2,$3))) with labels left offset 1 notitle
17 pause -1 "Hit return to continue"
20 # Unfortunately, not all platforms allow us to read hexadecimal constants
21 # from a data file. Warn the user if that is the case.
23 if (0 == int('0x01')) \
24 set label 99 at screen .05, screen .15 "If you see only black dots,\nthis means your platform does not \nsupport reading hexadecimal constants\nfrom a data file. Get a newer libc."
26 splot 'rgb_variable.dat' using 1:2:3:(5*rand(0)):4 with points pt 7 ps variable lc rgb variable \
27 title "variable pointsize and rgb color read as hexidecimal"
29 pause -1 "Hit return to continue"
33 set xtics axis nomirror
34 set ytics axis nomirror
35 set ztics axis nomirror
36 set xzeroaxis lt -1 lc rgb "red" lw 2
37 set yzeroaxis lt -1 lc rgb "green" lw 2
38 set zzeroaxis lt -1 lc rgb "blue" lw 2
41 splot 'rgb_variable.dat' using 1:2:3:(5*rand(0)):(rgb($1,$2,$3)) with points pt 7 ps variable lc rgb variable \
42 title "variable pointsize and rgb color computed from coords"
43 pause -1 "Hit return to continue"
45 set title "Demo of hidden3d with points only (no surface)"
48 pause -1 "Hit return to continue"