[Geoserver-users] Reprojecting WMS data

GeoServer GeoServer User
1

Hello everybody,

I am moving my project from Mapserver to Geoserver and all is going fine..
Now the only problem is that I need to reproject the WMS data service from
NASA (JPL Global Mosaic (WMS)) from 4326 to 23033.

Is there a way for reprojecting a WMS source from one reference sysem to
another?

Thanks

Luca

2

Hello,

Yes you can choose for each feature type to reproject your data. For this, see http://geoserver.org/display/GEOSDOC/4+FeatureType+Config.

In short : when defining your feature type, you define a SRS code and you choose in the combo box to use this code as reprojection.

Hope this will help.

Alexandre

On Sun, Apr 6, 2008 at 5:26 PM, Luca Casagrande <luca.casagrande@anonymised.com> wrote:

Hello everybody,

I am moving my project from Mapserver to Geoserver and all is going fine…
Now the only problem is that I need to reproject the WMS data service from
NASA (JPL Global Mosaic (WMS)) from 4326 to 23033.

Is there a way for reprojecting a WMS source from one reference sysem to
another?

Thanks

Luca

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3

Luca Casagrande ha scritto:

Hello everybody,

I am moving my project from Mapserver to Geoserver and all is going fine..
Now the only problem is that I need to reproject the WMS data service from NASA (JPL Global Mosaic (WMS)) from 4326 to 23033.

Is there a way for reprojecting a WMS source from one reference sysem to another?

So you'd like GeoServer to connect to NASA WMS and reproject the image?
This is known as "WMS cascading" and it's, unfortunately, something
GeoServer does not support. Unfortunately it's not easy to add either,
we'd have to build a new set of configuration classes and modify the
renderer to deal with something that not vector, but it's not a coverage
either.

I'm wondering if, for this particular case, adapting GeoWebCache
could be easier. Luca, is your UI tiled? If so, it could make sense,
thought I'm not sure how difficult it would be.

Cheers
Andrea

4

Andrea Aime wrote:

Luca Casagrande ha scritto:

Hello everybody,

I am moving my project from Mapserver to Geoserver and all is going fine..
Now the only problem is that I need to reproject the WMS data service from NASA (JPL Global Mosaic (WMS)) from 4326 to 23033.

Is there a way for reprojecting a WMS source from one reference sysem to another?

I'm wondering if, for this particular case, adapting GeoWebCache
could be easier. Luca, is your UI tiled? If so, it could make sense,
thought I'm not sure how difficult it would be.

Right now GeoWebCache isn't guaranteed to handle anything other than 4326 and 900913 (the two projections specified by the WMS-C recommendations), and it doesn't have any reprojection capabilities. So unfortunately I think that would be a stretch too.

-Arne