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The title just about says it all...I have a list of evenly-spaced points in a csv file like this:

x,y,z
5,3,3.2
5,6,4.3
5,9,5.4
10,3,4
10,6,3.8
10,9,3.6
15,3,4.8
15,6,4
15,9,3.5

And I need a depth map or 3d plane of them. What is a good, simple program to use? Or, if it's not simple, how about some easy to follow instructions?

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up vote 5 down vote accepted

The standard program for this sort of thing is gnuplot. The home page is

www.gnuplot.info

and there is an introduction to 3D plotting of data here:

http://t16web.lanl.gov/Kawano/gnuplot/datafile-e.html#3dim
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1  
Worked great, thanks! – marcusw Jul 8 '10 at 17:59

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