[Mapserver-users] Full extent of the shape file

Eduardo Patto Kanegae eduardo at consultoria.eti.br
Fri Jul 23 19:19:39 EDT 2004


Thomas Chesky escreveu:

> Tom and Eduardo
>  
> Thanks for the reply.
> ogrinfo and shpdmp gives the extent in the original coordinates of the 
> projection.
> I am trying to get the lat/lon extent of the same.
> When setting up the map file as WMS server, the GetCapabilities 
> provides the extent in
> lan/lot as well, that is where I get the incorrect (?) boundaries of
>  
> LatLonBoundingBox minx="-111.388" miny="46.3886" maxx="-106.113" 
> maxy="49.1724"
>  
> What tool does mapserver uses to get the corresponding lat/lon 
> boundary when creating the WMS GetCapabilities XML? Is it Proj?

Yes. It's impossible to compile WMS on MapServer without PROJ support.

best

Eduardo

> Can it be the problem of my PROJ installation?
>  
> Thanks
>  
>
>
> */"Kralidis,Tom [Burlington]" <Tom.Kralidis at ec.gc.ca>/* wrote:
>
>
>     Try ogrinfo, i.e.
>
>     $ ogrinfo -al ./shapefile.shp
>
>     The first bit of information returned provides an overview of the data
>     (extent, field definitions, geometry type), then followed by a
>     feature-by-feature report.
>
>     ..Tom
>
>
>
>     -----Original Message-----
>     From: mapserver-users-admin at lists.gis.umn.edu
>     [mailto:mapserver-users-admin at lists.gis.umn.edu] On Behalf Of Thomas
>     Chesky
>     Sent: Thursday, July 22, 2004 18:55
>     To: mapserver-users at lists.gis.umn.edu
>     Subject: [Mapserver-users] Full extent of the shape file
>
>
>     I have the shape file, which metadata says to have the extent of
>     Spatial_Domain:
>     Bounding_Coordinates:
>     West_Bounding_Coordinate: -122.5
>     East_Bounding_Coordinate: -121.1
>     North_Bounding_Coordinate: 47.8
>     South_Bounding_Coordinate: 47.1
>     Mapserver however identifies the following boundary (when
>     requested via
>     GetCapabilities WMS request)
>
>     king_cou
>
>     EPSG:2855
>
>     maxx="-106.113" maxy="49.1724" />
>
>     minx="1.21826e+006" miny="30932.7"
>     maxx="1.57787e+006" maxy="287704" />
>
>     The LatLonBoundingBox is completely different than the real boundary
>     defined by the meta info. Mapserver actually returns the image if
>     requested with an extent within "it's own" boundary but return only
>     blank if boundary is outside of that, but within the metainfo
>     boundary.
>     Any thoughts? What tool can I use to check the full extent of a shape
>     file.
>     Why does Mapserver reads wrong full extent?
>     Any help would be greatly appreciated.
>     Thanks
>
>
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-- 
Eduardo Patto Kanegae
http://www.consultoria.eti.br
UIN: 303747254

Treinamento em UMN MapServer - http://www.consultoria.eti.br/ptbr/?menuoption=mapserver
I Encontro Nacional de Usuários MapServer - http://mapserver.cttmar.univali.br/encontro2004
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