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Re: Display of topo map in MAP routines. [message #68038 is a reply to message #68037]

Tue, 22 September 2009 13:41

Kenneth P. Bowman
Messages: 585
Registered: May 2000

Senior Member

In article <h9b1dm$kse$1@news.woc.noaa.gov>,
Paul van Delst <paul.vandelst@noaa.gov> wrote:

> Hello,
>
> I'm sure this question has come up before (I did a quick search of David Fanning's tips
> but didn't immediately see anything). Apologies in advance for being a bit lazy....
>
> Can someone outline (real quick) the steps needed to display a topo map in the background
> of a map projection? Other point data will be overplotted over this background.
>
> Does a DEM file come with IDL, or do I need to visit the USGS?
>
> Thanks for any info/help.
>
> cheers,
>
> paulv

If you go to my downloads page

http://idl.tamu.edu/Downloads.html

and download my library

http://csrp.tamu.edu/downloads/idl/bowman_lib.zip

it includes some routines to read your choice of two different
global topography databases. (They are included in the download.)

These data are on 5-minute and 10-minute lat-lon grids, and may
not have the resolution that you need.

There is also a land-ocean data base with associated access routines.

Plot the maps and then fire away with PLOTS.

Cheers, Ken Bowman

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[Message index]

		Re: Display of topo map in MAP routines. By: Paul Van Delst[1] on Tue, 22 September 2009 13:56
		Re: Display of topo map in MAP routines. By: Kenneth P. Bowman on Tue, 22 September 2009 13:41
		Re: Display of topo map in MAP routines. By: Paul Van Delst[1] on Tue, 22 September 2009 13:39
		Re: Display of topo map in MAP routines. By: David Fanning on Tue, 22 September 2009 12:22

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