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Re: map_set, state county borders [message #26625]

Fri, 21 September 2001 10:11

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Kelly Dean (krdean@lamar.colostate.edu) writes:

> Then use IDL 5.4's IDLffShape object to read the Shapefiles. IDL has plenty
> of examples and demo routines to get you started.

Uh, where are these, exactly? :-(

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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Re: map_set, state county borders [message #26627 is a reply to message #26625]

Fri, 21 September 2001 08:36

Kelly Dean
Messages: 92
Registered: March 1997

Member

Get the county boundaries in the ESRI Shapefiles format ( SHP) which is
available at the GIS Depot..

http://www.gisdatadepot.com/catalog/US/group21.html

Then use IDL 5.4's IDLffShape object to read the Shapefiles. IDL has plenty
of examples and demo routines to get you started.

Kelly Dean
CSU/CIRA

Chad Bahrmann wrote:

> Has anyone ever found a way to plot state county borders in IDL 5.4? Is
> there an outside datasource that has this information that can be imported
> into IDL?

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Re: map_set, state county borders [message #26742 is a reply to message #26625]

Mon, 24 September 2001 09:24

Kelly Dean
Messages: 92
Registered: March 1997

Member

IDL help has some example code, but I found the IDL Demo Earth Science Mapping
Application a big help in my first look at reading and working with Shapefiles.

The d_map.pro in the idl54\examples\demo\demosrc was a good starting point for
me.

There is actually a states.shp in the IDL54\examples\data.

Kelly

David Fanning wrote:

> Kelly Dean (krdean@lamar.colostate.edu) writes:
>
>> Then use IDL 5.4's IDLffShape object to read the Shapefiles. IDL has plenty
>> of examples and demo routines to get you started.
>
> Uh, where are these, exactly? :-(
>
> Cheers,
>
> David
>
> --
> David W. Fanning, Ph.D.
> Fanning Software Consulting
> Phone: 970-221-0438, E-mail: david@dfanning.com
> Coyote's Guide to IDL Programming: http://www.dfanning.com/
> Toll-Free IDL Book Orders: 1-888-461-0155

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