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"NoData" is a term for null values in raster datasets.
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Mapserver / QGis and DEM GeoTIFF different nodata values behaviour
All the "nodata" values have a value of -99999. … I tried to play with PROCESSING "NODATA=OFF" or PROCESSING "NODATA=-32768"but without success.
I know how to set in the layer properties in QGIS a transparency of 100% where pixel=-32768 . …
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Mapserver / QGis and DEM GeoTIFF different nodata values behaviour
In the layer METADATA I added two metadatas: "wcs_rangeset_nullvalue" "-99999"wich alone does no do anything but -99999 is my geoTiff "nodata" real value (in the tiff metadata there is a tag nodata=-99999 …