RE: Getting LAT/LON coordination?

Thanks for your reply. and sorry for bugging you again.
I tried as you advised, but still am very confusing.
Can you give me more explanation for getting Lat/Lon?
First, I don't know what kind of index am I getting.
I took a look at several street data, and all the fields in dbf files
are different.
Also after getting index, I don't know what to do.
Am I getting ESRIRecord object with that index as a result?
 
Thanks,
Joonhwan

-----Original Message-----
From: Donald Dietrick [mailto:dietrick@bbn.com]
Sent: Saturday, September 08, 2001 3:17 PM
To: joonhwan@cmu.edu
Cc: openmap-users@bbn.com
Subject: Re: Getting LAT/LON coordination?

Hi Joonhwan,

This functionality isn't built into OpenMap, but you could use parts of
OpenMap to do it. Right now, the main obstacle you'll have to get around
is accessing the address information out of the dbf files. You have a
couple of options:

1. Doug Van Auken submitted a package that reads dbf file that goes with
his implementation of a ShapeLayer. That package hasn't been integrated
into the OpenMap package yet, but it's available for download on the
submissions page of the OpenMap website (http://openmap.bbn.com).

2. You can convert the dbf file to a csv file (using Excel), and use
OpenMap components to access it. The com.bbn.openmap.layer.shape.areas
package is an example of how to tie csv files and shape files together.

If you find the street address in the data file, you will have the index
of the corresponding graphic in the shape file, and you can access that
graphic with the com.bbn.openmap.layer.shape components (I think
SpatialIndex). You may have to play around with address ranges from the
database file to interpolate a specific point. Anyway, that graphic will
have the coordinates for that address.

Hope this helps,

Don

On Saturday, September 8, 2001, at 03:24 AM, Joonhwan Lee wrote:

Hello,
 
I would like to get latitude and longitude coordination from street
theme.
Is it possible to do with OpenMap?
I'm going to use ESRI Shape files.
 
Thanks,
Joonhwan Lee

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Donald F. Dietrick, dietrick@bbn.com
BBN Technologies, 10 Moulton Street, Cambridge, MA 02138
617.873.3031 FAX 2794
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