Hi again,

I just want here to put things a little bit clearer (I am a beginner, I 
hope it won't be too confused).

I have:
- a GeoServer layer L1 which data come from a PostGIS table T1 
containing geometries of type "POINT" (points),
- a GeoServer layer L2 which data come from a PostGIS table T2 
containing geometries of type "MULTIPOLYGON" (French departments),
- a GeoServer group of layers G containing these two layers L1 and L2.

As a result, I want to display a map "containing" those two layers 
(using OpenLayers).

I need to compute a bounding box FROM these data ((T1 and T2) or (L1 and 
L2) or (G)).
I need to do this programmatically.
The bounding box I'll get as a result has to fit exactly the displayed 
data, in my case a map of France with "points" on it.

The bounding boxes computed by Geoserver in my case are (for both T1 and 
T2):
+--------+-----------+-----------+-----------+
| Min X  | Min Y     | Max X     | Max Y     |
+--------+-----------+-----------+-----------+
| 99,226 | 6,049,647 | 1,242,375 | 7,110,524 |
+--------+-----------+-----------+-----------+
=> I don't understand what these huge numbers are (what is their unit of 
measure, etc.)...
=> I don't understand why the bounding boxes are the same for T1 and T2 
(they shouldn't be)...
=> I don't know how "Min X", "Min Y", "Max X" and "Max Y" are calculated...

As you can see I'm a bit lost. Can you help me?
Thank you and Best regards,
--
Lmhelp



On 05/06/2011 10:40 AM, Lmhelp wrote:
> Hi,
>
> Thank you for reading my post.
>
> Through GeoServer Web client (http://localhost:8080/geoserver/web/), if
> I choose:
> "Layers" ->  "Add a new resource" ->  "Layer chooser" ->  "Publish a new 
> layer"
> I can then:
> - click the link "Compute from data" to get "Native Bounding Box"
> - and also click the link "Compute from native bounds" to get "Lat/Lon
> Bounding Box".
>
> My question is the following:
> using the GeoServer REST API through a Java program, how can I:
> - "compute native bounding box from data"
> - and "compute lat/lon bounding box from native bounds"?
> If I can't do it through GeoServer REST API can you advise me how to
> compute those bounding boxes?
>
> Thank you and best regards,
> --
> Lmhelp

------------------------------------------------------------------------------
WhatsUp Gold - Download Free Network Management Software
The most intuitive, comprehensive, and cost-effective network 
management toolset available today.  Delivers lowest initial 
acquisition cost and overall TCO of any competing solution.
http://p.sf.net/sfu/whatsupgold-sd
_______________________________________________
Geoserver-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/geoserver-users

Reply via email to