| Re: N-dimensional rotation [message #23093] |
Fri, 05 January 2001 07:21 |
davidf
Messages: 2866
Registered: September 1996
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Senior Member |
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Antonio Plaza Miguel (aplaza@unex.es) writes:
>
> I was wondering if the ROT and ROTATE functions of IDL 5.3 allow the
> rotation of N-dimensional vectors, but I have just found that only 1D and 2D
> arrays can be specified as input parameters for these functions.
>
> I would be grateful if somebody could give me some links to
> information/source code about this subject. Our current objective is to
> analyze the N-dimensional scatterplot of a hyperspectral image in order to
> find spectrally pure elements. I know ENVI has a tool (N-dimensional
> visualizer) which allows to visualize and rotate the data cloud
> interactively, but our purpose is to incorporate some automation to the
> process.
If you already have ENVI, you can use those ENVI routines
you need in other IDL programs you build, including those
that will provide some automation.
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155
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