plz help! i have a dataset with the format of
x y z p
-0.574142 -0.818671 0.011756 0.000440
-0.364919 0.184603 0.912555 0.000324
-0.990822 -0.022168 0.133345 0.000419
-0.983317 -0.089955 0.158099 0.000417
-0.493497 0.474422 -0.728961 0.000501
-0.789287 -0.566719 0.236336 0.000413
0.293932 0.520691 -0.801551 0.000510
and they are random points on a 3d sphere, with the p value (the fourth column) representing the "heat" of that location, the actual datafile is with 50 such points.
i want to plot the surface of the sphere into a heatplot, not each point being colored.
i've searched for lots of post, all of them would require some kind of isoline, but in my case there isn't any. is it possible still using gnuplot to do heatmap? i'm also opened to any other way.
btw im running linux with newest gnuplot, the data are generated by c
ps: i understand theres a way of making data into isolines and then use gnuplot with pm3d, but i cant do that because all my x data is randomized, hence there is no isoline.