I need to plot some points in 3d surface based on x,y,z coordiantes values in a file named as test.dat
test.dat file contains
At-No X Y Z
6 3.532210 -2.171743 0.921140
7 1.164869 -1.418981 0.782133
1 2.454732 2.332989 -0.907213
6 -3.246376 -1.047325 -0.602590
6 -2.620684 0.053348 -0.013310
6 -4.569969 -1.249720 -0.617858
6 -3.436335 1.003953 0.597094
1 -5.328079 -0.323336 -0.025131
First value indicates At-no(Atomic number) , second value indicates x coordinates value, 3rd value indicate y coordinates values and finally 4th value indicate z coordinate value.
I tried Gnuplot
splot "test.dat" u 1:2:3 ps variable pt 7
but it give a blank screen . I want to display points on 3d surface.... Points with At-no 6 display in red color and 7 with blue and 1 with green. Is it possible to display points like this
Thanks in Advance................
You can use conditional plotting.
This creates