Implementing a Google Map Layer on Geoserver
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elshae
Aug 24, 2010, 9:53:19 AM8/24/10
to Google Maps JavaScript API v3
Hello all,
I am new to GIS and spatial data technology. For the last week I have
been trying to figure what is the appropriate/recommended way to add a
Google Map layer to my Geoserver projects. I saw a screen shot on one
site of some sort plug-in, but have yet to find any info on that. I
have also seen http://geowebcache.org/docs/current/services/gmaps.html
but I yet to know where do I add this JavaScript snippet to implement
it. So far the only solution I have come up with is to create an HTML
document and place it in the www directory of my Geoserver with the
following snippets:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script src='http://dev.virtualearth.net/mapcontrol/
mapcontrol.ashx?v=6.2&mkt=en-us'></script>
<script src="http://maps.google.com/maps?
file=api&v=2&sensor=false& type="text/javascript"></
script>
......
// create Google layer
var gsat = new OpenLayers.Layer.Google(
"Google Satellite",
{type: G_SATELLITE_MAP, sphericalMercator: true}
);
....
map.addLayers([gsat, veaer, yahoosat, wms]);
.....
But is the process really this manual? In Quantum GIS there's an easy
out-of-the-box plug-in that I click on and a Google Layer is generated
for my spatial data. My other question is, why is the API key
needed? I didn't use it in this case and I have read in articles that
it isn't needed for the v3 API. Does this key only apply to some of
the Google MAp API's and not others?
I apologize in advance if I am asking the obvious :)
Cheers,
elshae
I am new to GIS and spatial data technology. For the last week I have
been trying to figure what is the appropriate/recommended way to add a
Google Map layer to my Geoserver projects. I saw a screen shot on one
site of some sort plug-in, but have yet to find any info on that. I
have also seen http://geowebcache.org/docs/current/services/gmaps.html
but I yet to know where do I add this JavaScript snippet to implement
it. So far the only solution I have come up with is to create an HTML
document and place it in the www directory of my Geoserver with the
following snippets:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script src='http://dev.virtualearth.net/mapcontrol/
mapcontrol.ashx?v=6.2&mkt=en-us'></script>
<script src="http://maps.google.com/maps?
file=api&v=2&sensor=false& type="text/javascript"></
script>
......
// create Google layer
var gsat = new OpenLayers.Layer.Google(
"Google Satellite",
{type: G_SATELLITE_MAP, sphericalMercator: true}
);
....
map.addLayers([gsat, veaer, yahoosat, wms]);
.....
But is the process really this manual? In Quantum GIS there's an easy
out-of-the-box plug-in that I click on and a Google Layer is generated
for my spatial data. My other question is, why is the API key
needed? I didn't use it in this case and I have read in articles that
it isn't needed for the v3 API. Does this key only apply to some of
the Google MAp API's and not others?
I apologize in advance if I am asking the obvious :)
Cheers,
elshae
elshae
Aug 24, 2010, 10:13:36 AM8/24/10
to Google Maps JavaScript API v3
I apologize, my script
<script src="http://maps.google.com/maps?
file=api&v=3&sensor=false& type="text/javascript"></
script>
On Aug 24, 9:53 am, elshae <itinte...@trace.org> wrote:
> Hello all,
>
> I am new to GIS and spatial data technology. For the last week I have
> been trying to figure what is the appropriate/recommended way to add a
> Google Map layer to my Geoserver projects. I saw a screen shot on one
> site of some sort plug-in, but have yet to find any info on that. I
> have also seenhttp://geowebcache.org/docs/current/services/gmaps.html
<script src="http://maps.google.com/maps?
file=api&v=2&sensor=false& type="text/javascript"></
script>
Should have been
file=api&v=2&sensor=false& type="text/javascript"></
script>
<script src="http://maps.google.com/maps?
file=api&v=3&sensor=false& type="text/javascript"></
script>
On Aug 24, 9:53 am, elshae <itinte...@trace.org> wrote:
> Hello all,
>
> I am new to GIS and spatial data technology. For the last week I have
> been trying to figure what is the appropriate/recommended way to add a
> Google Map layer to my Geoserver projects. I saw a screen shot on one
> site of some sort plug-in, but have yet to find any info on that. I
Rossko
Aug 24, 2010, 12:48:01 PM8/24/10
to Google Maps JavaScript API v3
Whatever example you are looking at, it is an OpenLayers example.
That is a client-side mapping display tool, which can optionally show
Google's mapping imagery via the use of Google's own maps API in
addition to the OpenLayers code.
> I am new to GIS and spatial data technology. For the last week I have
> been trying to figure what is the appropriate/recommended way to add a
> Google Map layer to my Geoserver projects.
So far as I know, Geoserver is just that, a server, and you won't be
able or allowed to add Google maps to it. For Geoserver to be any
practical use, you have to view it with some client-side app or
another ... like OpenLayers, for example. If you want to include
Google maps for user view, its the client-side you should be looking
into.
That is a client-side mapping display tool, which can optionally show
Google's mapping imagery via the use of Google's own maps API in
addition to the OpenLayers code.
> I am new to GIS and spatial data technology. For the last week I have
> been trying to figure what is the appropriate/recommended way to add a
> Google Map layer to my Geoserver projects.
able or allowed to add Google maps to it. For Geoserver to be any
practical use, you have to view it with some client-side app or
another ... like OpenLayers, for example. If you want to include
Google maps for user view, its the client-side you should be looking
into.
elshae
Aug 24, 2010, 3:41:11 PM8/24/10
to Google Maps JavaScript API v3
Thank you for your quick reply Rossko!
Well I think I finally got it.
It seems that the only way to do it is to create an HTML file and save
it in Geoserver's /www directory. This HTML file has all the
OpenLayers and Google Layer JavaScript snippets needed to customize my
map using the API's. I was hoping that there would be some sort of
plug-in for OpenLayers, but all documentation points to manual
JavaScripting. If anyone has any info on a generic way to implement
OpenLayers and Google Map Layers please let me know! Otherwise I
would recommend this http://lsi.iiit.ac.in/osgeoin/sites/default/files/GeoServer_tutorial.pdf
. Note that the Geoserver version used in this documentation seems to
be different than the current and some of the instructions are a
little off, but it still gives a great gist and there are still ways
to follow every step.
Cheers,
elshae
Well I think I finally got it.
It seems that the only way to do it is to create an HTML file and save
it in Geoserver's /www directory. This HTML file has all the
OpenLayers and Google Layer JavaScript snippets needed to customize my
map using the API's. I was hoping that there would be some sort of
plug-in for OpenLayers, but all documentation points to manual
JavaScripting. If anyone has any info on a generic way to implement
OpenLayers and Google Map Layers please let me know! Otherwise I
would recommend this http://lsi.iiit.ac.in/osgeoin/sites/default/files/GeoServer_tutorial.pdf
. Note that the Geoserver version used in this documentation seems to
be different than the current and some of the instructions are a
little off, but it still gives a great gist and there are still ways
to follow every step.
Cheers,
elshae
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