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Re: Elevation data [message #69664 is a reply to message #69527] Tue, 26 January 2010 03:12 Go to previous message
jkeller is currently offline  jkeller
Messages: 35
Registered: October 2009
Member
On Jan 25, 2:13 pm, Dave_Poreh <d.po...@gmail.com> wrote:
> Folks
> Hi;
> I have an elevation data (elevation.dat), which has lat-long and
> elevation information. I want to save this file as a .tiff image and
> doing some surface, shade_surf, and… presentations.
> Could someone give me some tiny help for doing that?
> Any help highly appreciated
> Cheers
> Dave

Hi Dave,

do you want to save the data as tiff or do you want to save the
contour, shade_surf output images as tiff-file?

Using contour and surface is pretty easy. Assuming your elevation data
is the variable "elev" and your longitude and latitude information is
stored in "lon" and "lat" then you yan issue a filled contour plot by
using
contour,elev,lon,lat,/fill,level=mylevels,c_color=mycolors
giving "mylevels" is an array containing the height levels for which
contours are desired and "mycolors" is an array defining the color
indices for the according level.

The surface plot would be even simplier:
surface,elev,lon,lat

Thats some good points, where you can start. If you are more specific
about what you would like to do, I could give you a more specific
answer.

Regards,
Jan
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