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Re: 3D Scatterplot code [message #47 is a reply to message #46]

Sat, 19 January 1991 12:59

plonski
Messages: 7
Registered: February 1991

Junior Member

3D Scatter plots in IDL are easy. I typically use a "surface /nodata ..."
call to set up the t3d matrix based on user specified rotations, scales
etc. Then one can use the "plots /t3d PSYM= ..." command with the x,y,z
values. A simple version of the above would only take two lines of code.
I typically assign different colors to each data set being plotted.
I don't have a way to interactively rotate. For the data set I use,
I wrote a short routine which does the above and then I
call it repeatedly until I get the perspective that looks best.
The code assumes a lot about the data which is passed in structures
so it would not be useful to others.

If anyone has a better way I'd like to know about it as the above method
was my quick & dirty approach to the problem.

------------------------------------------------------------ -------------------
. . .__. The opinions expressed herein are soley
|\./| !__! Michael Plonski those of the author and do not represent
| | | "plonski@aero.org" those of The Aerospace Corporation.
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[Message index]

		Re: 3D Scatterplot code By: churchill on Sun, 20 January 1991 16:34
		Re: 3D Scatterplot code By: plonski on Sat, 19 January 1991 12:59

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