On mercredi 4 avril 2018 19:51:56 CEST Burkhardt, Glenn B UTAS wrote: > DTED data is notoriously sparse. If one combines all the files in a DTED > dataset into a single Geotiff file using something like " gdalwarp -co > TILED=YES */*.dt2 dted2.tif" > > But GDAL will build a bounding box that's square with the world, and there > might not be data for every 1x1 deg section of the bounding box. > > When this happens, Mapserver fills in the missing data with zeros. > Additionally, there might be data missing from within a 1x1 deg DTED file, > and it is marked with a NODATA flag of -32767. > > Is there some way for Mapserver to communicate to a client where data is > missing? I can't find anything in the coverage information provided to a > WCS 1.0.0 client.
Glenn, You can define in the LAYER.METADATA section things like for WCS 1.0 and WCS 1.1 "wcs_rangeset_nullvalue" "-32767" Actually I see this wasn't documented. I've just added it in http://mapserver.org/ogc/wcs_server.html For WCS 2, use "wcs_nilvalues" Even -- Spatialys - Geospatial professional services http://www.spatialys.com _______________________________________________ mapserver-users mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/mapserver-users
