[Gnuplot-info] Plot colored surface of unit sphere

[Benjamin v. A. <ben...@gm...>]

Hey guys,

I am trying to plot my data on the surface of a sphere with the data values
being color coded. For that I have tried around a lot with pm3d but most of
the time, I got ' Warning: Single isoline (scan) is not enough for a pm3d
plot.' errors.

Now I am working with this example: http://www.gnuplotting.org/heat-maps/

that I turned into my own script, that you can find at
http://www.plotshare.com/index.ws/plot/986805525 .

The data is stored as

phi theta r value

with r=1 constant.  I want to have a nice smooth surface like I would get
in the 2D case using splot ...image!

On plotshare, despite 'w pm3d' the points are just very small pixels and on
my machine in wxt terminal, I do not see any of the data at all.

If you have done something like that before, it would be great if you could
help me out.

Cheers,
Ben