[Geoserver-users] Projection using geoserve example

Hi everyone.

I have a geoserver on a ubuntu server and it’s pretty nice to test it. But I have a problem using it.

I am making some test with the tazmania example give with the 1.5.3 version of geoserver. I would like to see the “boundaries” shape, in WMS, while I have the yahoo map beneath. I am trying to play with projection, but it seems useless as I don’t see any difference.

  • Do I have to create my map in a particular way (i.e. with a “900913” SRS projection) ?
  • Do I have to modify the data on the server side or is it enough to play with openlayers ?

Here is a part of the code that I have right now :

map = new OpenLayers.Map( $(‘map’) );
OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3;

externalLayer = new OpenLayers.Layer.Yahoo(“Yahoo”, {“sphercialMercator”: true});
map.addLayer(externalLayer);

var tasmaniaTestLayer = new OpenLayers.Layer.WMS( “Tasmania test”, “/geoserver/wms”, {layers: ‘topp:tasmania_state_boundaries’, ‘transparent’: true, format: ‘image/png’, ‘sphericalMercator’: true}, {‘isBaseLayer’: false, projection: “EPSG:900913”} );
map.addLayer(tasmaniaTestLayer);


View this message in context: Projection using geoserve example
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Which version of OpenLayers are you using? I think the spherical
mercator stuff was added in 2.5... I could be wrong though. Also have
you seen the following example:

http://svn.openlayers.org/branches/openlayers/2.5/examples/spherical-mercator.html

It might be useful to use this as a starting point. I just tried an
example with tasmania_state_boundaries and it works great.

-Justin

Bakoi wrote:

Hi everyone.

I have a geoserver on a ubuntu server and it's pretty nice to test it.
But I have a problem using it.

I am making some test with the tazmania example give with the 1.5.3
version of geoserver. I would like to see the "boundaries" shape, in
WMS, while I have the yahoo map beneath. I am trying to play with
projection, but it seems useless as I don't see any difference.

    * Do I have to create my map in a particular way (i.e. with a
      "900913" SRS projection) ?
    * Do I have to modify the data on the server side or is it enough to
      play with openlayers ?

Here is a part of the code that I have right now :

    map = new OpenLayers.Map( $('map') );
    OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3;

    externalLayer = new OpenLayers.Layer.Yahoo("Yahoo",
    {"sphercialMercator": true});
    map.addLayer(externalLayer);

    var tasmaniaTestLayer = new OpenLayers.Layer.WMS( "Tasmania test",
    "/geoserver/wms", {layers: 'topp:tasmania_state_boundaries',
    'transparent': true, format: 'image/png', 'sphericalMercator':
    true}, {'isBaseLayer': false, projection: "EPSG:900913"} );
    map.addLayer(tasmaniaTestLayer);

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Justin Deoliveira
The Open Planning Project
http://topp.openplans.org

Thank you Justin.

I am taking a look at this example.
I am using OpenLayers 2.5. I have been forced to use it because I need the
"modify control".

Keep me in touch if you are able to make it works with tazmania example.

Justin Deoliveira-4 wrote:

Which version of OpenLayers are you using? I think the spherical
mercator stuff was added in 2.5... I could be wrong though. Also have
you seen the following example:

http://svn.openlayers.org/branches/openlayers/2.5/examples/spherical-mercator.html

It might be useful to use this as a starting point. I just tried an
example with tasmania_state_boundaries and it works great.

-Justin

Bakoi wrote:

Hi everyone.

I have a geoserver on a ubuntu server and it's pretty nice to test it.
But I have a problem using it.

I am making some test with the tazmania example give with the 1.5.3
version of geoserver. I would like to see the "boundaries" shape, in
WMS, while I have the yahoo map beneath. I am trying to play with
projection, but it seems useless as I don't see any difference.

    * Do I have to create my map in a particular way (i.e. with a
      "900913" SRS projection) ?
    * Do I have to modify the data on the server side or is it enough to
      play with openlayers ?

Here is a part of the code that I have right now :

    map = new OpenLayers.Map( $('map') );
    OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3;

    externalLayer = new OpenLayers.Layer.Yahoo("Yahoo",
    {"sphercialMercator": true});
    map.addLayer(externalLayer);

    var tasmaniaTestLayer = new OpenLayers.Layer.WMS( "Tasmania test",
    "/geoserver/wms", {layers: 'topp:tasmania_state_boundaries',
    'transparent': true, format: 'image/png', 'sphericalMercator':
    true}, {'isBaseLayer': false, projection: "EPSG:900913"} );
    map.addLayer(tasmaniaTestLayer);

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Justin Deoliveira
The Open Planning Project
http://topp.openplans.org

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