[Gnuplot-info] pm3d-plot with HSV color space

[jmseibt <Joa...@ch...>]

Hello,

Maybe someone can help me with the following issue:

I'm trying to plot a complex quantity z which depends on two variables x and
y in form of a pm3d-plot,
where the phase phi(z) of the complex values is aimed to be encoded a color
from the hue-scale,
while the amplitude A(z) of the complex values determines the intensity of
that color.

The data are read from a file with specification of

x y phi(z) A(z)

in each column, where x changes slow and y changes fast.

The most obvious solution (at least from my point of view) to choose the
option

u 1:2:3:4

in combination with "splot" after definition of the color scheme via

set palette model HSV functions gray,1,1

did not yield the desired result. Then just the phase is plotted regardless
of the amplitude.

If you have an idea how to proceed, please let me know.

Best regards,

Joachim
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