WMS Capabilities: LatLonBoundingBox

[Angus Dickey]

Thanks for the response Ross...makes sense.

If anybody is interested what I ended up doing was running this:

SELECT extent(geom_column) FROM layer_name;

On my spatial layer and using the output in the wms_extent tag in a mapfile:

"wms_extent" "-120.154159545898 48.9968566894531 -101.362113952637 60.0001945495605"

~Angus



-----Original Message-----
From: Ross Elliott [mailto:ross.elliott at infoterra-global.com] 
Sent: June 15, 2006 3:23 PM
To: Angus Dickey
Subject: RE: [UMN_MAPSERVER-USERS] WMS Capabilities: LatLonBoundingBox

Mapserver will not calculate the extent for postgis layers as this operation can take a very long time on large layers.


-----Original Message-----
From: UMN MapServer Users List on behalf of Angus Dickey
Sent: Thu 6/15/2006 7:04 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] WMS Capabilities: LatLonBoundingBox
 
I am having a similar problem. Apparently Mapserver will automatically calculate the bounding box if you define it using epsg codes in the map file ex:

PROJECTION
  "init=epsg:4269"
END

This works for me when I use shapefiles, i.e. it calculates the correct bounding box in the right coordinates, however all my Postgis layers end up with a bounding box of:

minx="-2.5e+07" miny="-2.5e+07" maxx="2.5e+07" maxy="2.5e+07"

Are youusing postgis layers? Does anybody know how to get mapserver to calculate the correct bounding box for postgis layers?

Thanks for any help,

~Angus


-----Original Message-----
From: Arnaud Diederen [mailto:ad at IONICSOFT.COM] 
Sent: June 15, 2006 7:17 AM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: [UMN_MAPSERVER-USERS] WMS Capabilities: LatLonBoundingBox

Hello,

I'm absolutely new to mapserver, so I downloaded the demo for the 4.x 
version (I'm using Debian GNU/Linux).
The demo pages work ok, but when I do a GetCapabilities operation 
(http://localhost/cgi-bin/mapserv?service=WMS&version=1.3&map=/var/www/workshop/itasca.map&request=GetCapabilities 
- local intranet, sorry :( ), I get the attached XML document.
What I'm wondering is why the LatLonBoundingBox tags holds those values, 
since they are supposed to be in 4326, if I read the WMS spec right.

Am I doing something wrong?

I looked the archives, and googled the internet, but I couldn't find any 
help on this exact topic.
I would definitely appreciate if somebody could provide any kind of 
help; would it be just pointers on what I have to do/fix.

Best regards,

         Arnaud