You can just use WMS GetFeatureInfo, it should work on rasters at least in the latest versions of Mapserver.
Best regards, Bart -- Bart van den Eijnden OSGIS, Open Source GIS http://www.osgis.nl --------- Oorspronkelijk bericht -------- Van: Fabio D'Ovidio <[EMAIL PROTECTED]> Naar: [email protected] <[email protected]> Onderwerp: [UMN_MAPSERVER-USERS] Querying a ratser through OGC technologies Datum: 03/05/07 08:20 > Hi list! > I want some explanations about OGC technologies in querying a raster map. > > I'm sure that WCS provides raster data as WFS provides vector ones, while WMS provides > images (maps). > > I have a DEM and I want to know a specific value (float) in a specific point. How can I do it > through WCS? Is it possible to do the same with WMS (I think no, because WMS provides > images, not data!!). > > Are there any particular kind of WCS requests? > > If no, have I convert raster data in a vectorial format and use a WFS (GML)? > > What about Mapserver ? > > Thanks a lot!! > > > > -- > Fabio D'Ovidio > > Web GIS staff > Planetek Italia s.r.l. > Via Massaua 12, I-70123 Bari > Tel.: +39 080 5343750 Fax: +39 080 5340280 > [EMAIL PROTECTED] - http://www.planetek.it > -- > >
