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Re: 3D Plot Manipulation [message #20762 is a reply to message #20678]

Thu, 20 July 2000 00:00

Mark Hadfield
Messages: 783
Registered: May 1995

Senior Member

"Hugh Crowl" <hugh@astro.wesleyan.edu> wrote in message
news:3975F68E.310C29A1@astro.wesleyan.edu...
> surf_track appears to be close to what I want, but it still appears to
only
> be able to handle surfaces. My trouble is that I only have points; not a
> surface. In fact, I would like their to be axes on my graph as I rotate
it.
> Similar to the thunderstorm demo, but with points as opposed to surfaces.

Well, I have a set of fairly general object classes (MGHgrWindow,
MGHgrGraph3D) that can do what you want. if you want to try them, go to
http://katipo.niwa.cri.nz/~hadfield/gust/software/idl/, download
MARKS_ROUTINES.tar.gz
or MARKS_ROUTINES.zip and unpack it. Then run mgh_example_scatter (which I
just wrote). All being well you should get a window showing cloud of points
(with Gaussian random number positions) plotted on a graph with a set of
axes. You can rotate, translate or scale the graph.

The only problem with this program is that the points are represented in a
quick, dirty & inefficient way, each point being an IDLgrPlot object with a
single data point and a symbol. Once you get beyond the 300 points or so in
this example, performance becomes very slow. I will think about how to
improve it.

---
Mark Hadfield
m.hadfield@niwa.cri.nz http://katipo.niwa.cri.nz/~hadfield/
National Institute for Water and Atmospheric Research
PO Box 14-901, Wellington, New Zealand

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[Message index]

		3D Plot Manipulation By: Hugh Crowl on Wed, 19 July 2000 00:00
		Re: 3D Plot Manipulation By: Mark Hadfield on Fri, 21 July 2000 00:00
		Re: 3D Plot Manipulation By: Mark Hadfield on Fri, 21 July 2000 00:00
		Re: 3D Plot Manipulation By: Mark Hadfield on Thu, 20 July 2000 00:00
		Re: 3D Plot Manipulation By: promashkin on Wed, 19 July 2000 00:00
		Re: 3D Plot Manipulation By: promashkin on Wed, 19 July 2000 00:00

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