| CONTOUR plot [message #6632] |
Fri, 19 July 1996 00:00  |
Steven Thiel
Messages: 4
Registered: July 1996
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Junior Member |
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I have somewhat of a complicated problem involving trying to generate a
certain kind of contour plot. We have data that has been taken over the
past five years and would like to display all of the data in a contour
plot format with a time scale of only one year. In other words, we would
like to display the data from, say, Jan. 22 of all five years at the same
location on the time axis of he contour plot. We assumed that if we gave
IDL more than one z value for any given (x,y) point, it would do some
kind of averaging, smoothing or some other kind of trickery to arrive at
a single value for the contour(or SHADE_SURF, or any other kind of 3D
displaying method). If we try just giving the CONTOUR procedure more
than one z value for each (x, y) point, however, it simply displays two
contour plots superimposed on top of one another.
The alternative, of course, is for us to do some kind of external
averaging or smoothing before we pass the data off to CONTOUR, but we
don't want to have to do this if it is not needed. Any assistance on
this subject would be greatly appreciated.
-S. Thiel
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| Re: contour plot [message #80415 is a reply to message #6632] |
Mon, 04 June 2012 12:18  |
penteado
Messages: 866
Registered: February 2018
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Senior Member
Administrator |
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On Jun 4, 6:10 am, m_ali <m_ali_201...@yahoo.com> wrote:
> Hi
> some body advise me to put my IDL question in comp.lang.idl-pvwave. I am a beginner in IDL and I need a help to solve my problem.
http://www.idlcoyote.com/books/tg/samples/tg_chap5.pdf
page 147
> I have a measured surface air temperature at different meteorological stations.
> The data organized as follows
> Lon Lat temp
> _______________________
> lon_1 lat_1 T_1
> lon_2 lat_2 T_2
> ---- ----- ---
> ---- ----- ---
> Lon_n Lat_n T_n
> ________________________
>
> I would like to plot a contour of isothermal on a map
> could u tell me, what will i do?
> Ali
> --http://compgroup.net/comp.lang.idl-pvwave/
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