[postgis-users] Google Earth/PostGIS integration

[Craig Miller]

David,
 
I saw this press release from cubeworx although I haven't researched or used
the product personally.
 
http://www.cubewerx.com/main/about_us/news/Google.html
 
--Craig
 

  _____  

From: postgis-users-bounces at postgis.refractions.net
[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of TECHER
David
Sent: Tuesday, May 23, 2006 1:56 PM
To: PostGIS Users Discussion
Subject: Re: [postgis-users] Google Earth/PostGIS integration


Hi

Did U have some interesting URL ( WMS->GE gateways) to give us for that.

Thanks

--david;

Craig Miller a écrit : 

There are a couple of WMS->GE gateways.  You could use one of those to load

the GE basemap as a WMS layer, then put the PostGIS data on top of it.



--Craig

 



-----Original Message-----

From: postgis-users-bounces at postgis.refractions.net

[mailto:postgis-users-bounces at postgis.refractions.net] On Behalf Of Ezequias

Rodrigues da Rocha

Sent: Tuesday, May 23, 2006 10:20 AM

To: PostGIS Users Discussion

Subject: Re: [postgis-users] Google Earth/PostGIS integration



Sure it is nice. I just thought it could be more easy do a postgis

connection with Google Maps. But  how to connect (or just see) this bases ?



I have a desktopGIS with me and would like how to load a layer on Google.



Regards

Ezequias



Brian Timoney escreveu:

  

Jim:



With time a little short these days, I'll simply sketch out a few key 

points--



1)  The viewbox parameters for Google Earth (bbox, tilt, heading, 

range, etc.) can be read by a server script (PHP, ASP, CFM, etc.) via 

a Network Links layer in GE.



2)  Now that you have a handle on where the viewer is looking, how far 

they're zoomed in, etc., you can craft SQL queries to do perform 

geoprocessing operations (e.g. clipping), etc.  Again, using 

server-side scripting, you can then query your PostGIS db on the back-end.



3)  The Geometry specifications for Googles KML (Keyhole Markup 

Language) are very similar to the OGC's GML standard.  So pulling 

geometry out of PostGIS using the 'AsGML(the_geom)' function gets you 

90% home in terms of converting query responses back into KML.



4)  Applying the appropriate MIME types to the KML you send out from 

the server will ensure that the receiving browser knows to shuttle the 

response to the GE interface.



5)  Using GE's internal web browser (Windows only), is a handy way of 

keeping the user in the general "environment" even though technically 

the bulk of the data transaction is taking place between web browser and

    

server.

  

Hope this is helpful,





Brian

























-----------------------

The Timoney Group

518 17th Street

Suite 430

Denver, CO  80206



Ph:  (303) 929-3722

Fax: (303) 571-4304



www.thetimoneygroup.com

-----------------------























-----------------------

The Timoney Group

518 17th Street

Suite 430

Denver, CO  80206



Ph:  (303) 929-3722

Fax: (303) 571-4304



www.thetimoneygroup.com

-----------------------



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--

Ezequias Rodrigues da Rocha

http://ezequiasrocha.blogspot.com

msn:ezequias at hotmail.com

"the worst of democracies is still better than the best of dictatorship"



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