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Re: PLOTting into a 2-D array [message #46759]

Tue, 20 December 2005 10:20

M. Katz
Messages: 69
Registered: May 2005

Member

Thanks, JD,
My data are not in a regular xy grid. They follow arc-shaped paths,
with fast motion in the tangential direction, but tens of thousands of
points nonetheless.

To avoid the limitations of the screen resolution, I could use a
PIXMAP. The big advantage to "drawing" the output is the incredible
speed of the display, and memory efficiency. The disadvantage, as you
point out, is the fact that the data overlap each other vying for each
single pixel. I can mitigate that with REBIN and the like.

I could use HISTOGRAM, but HIST_2D might be harder because I believe
that I need the reverse-indexes to make effective use of the routine.
Still, since HIST_2D is written in IDL, there's no point in me not just
writing my own custom code. I was just hoping that there was a
super-fast routine that could draw lines into a 2D array, and have it
be stored as floating point. Maybe someone has something for that . . .
?

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		Re: PLOTting into a 2-D array By: M. Katz on Tue, 20 December 2005 10:20
		Re: PLOTting into a 2-D array By: JD Smith on Mon, 19 December 2005 11:53

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