Hemendra,
You understand that the Google Maps API doesn't officially support
overlaying external layers, right? That doesn't mean it can't be done
-- it just means you are firmly in "hack it, hope it works" territory.
I've written a book on the Google Maps API available at http://
www.pragmaticprogrammer.com/titles/sdgmapi . (Shameless plug: at US
$8.50, it's a steal!) You can also browse the examples and supporting
material (like Javadocs for the API) for free at http://
www.mapmap.org/googlemaps/ .
In the excellent book Mapping Hacks (O'Reilly), the authors talk
about pseudo-georeferencing Plain Old Image Files (POIFs??) using
JavaScript. You might have some luck with that if you disable panning/
dragging/zooming of the Google Map.
This link (http://www.dasnet.org/node/100) talks about one person's
adventures with figuring out what the real projections of the GM maps
are and overlaying his own data. Unfortunately, it's not as simple as
gmap.addMyOwnLayerToTheMap(url).
I think what you might want is something that offers the Google Maps
*user experience* with the ability to add your own layers. The OGC
(Open Geospatial Consortium -- http://www.opengeospatial.org/) solves
the second part of the equation. They offer a nice rich set of APIs
that allow you to dynamically create maps with any set of arbitrary
layers. A WFS server can serve up your vector data. A WMS server can
render them along with any raster (imagery) data you have.
There are a couple of good open source OGC server implementations out
there -- MapServer (http://mapserver.gis.umn.edu/) if you're
comfortable with PHP. GeoServer (http://geoserver.org) if you are
more comfortable with Java.
For a great (but not cheap) commercial solution, I'd check out Ionic
RedSpider (http://www.ionicsoft.com/). I've worked closely with these
guys in the past, and they really get the OGC solution space.
None of these offer the GoogleMaps "drag'n'drop" UI out of the box.
If you go with MapServer, ka-map (http://ka-map.maptools.org/) gives
you the rich UI. Another solution is to pick up a copy of Pragmatic
AJAX (http://www.pragmaticprogrammer.com/titles/ajax/) -- they have a
whole chapter, with sample code, on how to roll your own Google Maps
implementation from scratch.
HTH,
s
Scott Davis
[EMAIL PROTECTED]
Ask a generic question, get a generic answer. Perhaps a bit more
explanation of your problem would facilitate communication.
sophia
hemendra wrote:
i have already been to this link..
not that much use...
frst thing i m not getting is i have sdo_geometry type of column
and i
m not getting lat and long for that
but when i converted my shape file to sdo i specified 8307 SRID
hope to get some feedback
with regards
hemendra
[EMAIL PROTECTED]
----- Original Message -----
*From:* Sophia Parafina <mailto:[EMAIL PROTECTED]>
*To:* [email protected]
<mailto:[email protected]>
*Sent:* Thursday, January 12, 2006 5:50 PM
*Subject:* Re: [Geowanking] hii everybody
http://www.orablogs.com/oragis/archives/001156.html
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