[Gnuplot-info] Color 2D Contour Plots

[Topmmy <Met...@op...>]

Hello,

I'm a GNUplot newbie.  I simply want to make color 2D contour plots of X/Y/Z
data.

I searched this forum for posts on this and only found this one:
http://old.nabble.com/2-D-contour-plot-with-gnuplot-to33544887.html#a33544887
He basically asked the same question but unfortunately, no one answered him.

I have ever-so-briefly perused the GNUplot Manual and do not find much help
there.  In the FAQs, I see:
3.12 How to draw black contour plots ...

I have not obtained/read Janert's book but it seems like a very good
reference on GNUplot and its capabilities.

And unfortunately too, I checked the list of "Demo Samples" and do not find
any such guidance under "Basic 2D Plot Styles" (nothing on contours).

I'm interested in (to start with) a simple script that reads (from a
location I provide) a 3-column ASCII text file of Polar coordinates and
renders to the screen a color plot.  I'd like to figure out how, presumably
in the script, to control "bin" limits for the Z-data, which of course
governs the resolution of the contour plot.  A way to label axes and post a
legend of contour intervals would be even better!

Is this a tall order?

Any help is appreciated.
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