Selon weixj <[email protected]>: > How to judge a file is a DEM file or not?
There's no straightforward answer. Some formats (DTED, SRTM, ...) are specifically aimed for DEM. But DEM can also be conveyed through more generic purpose formats such as GeoTIFF. In that case, looking at the data type of the raster bands might give a clue. DEM use generally Int16 or Float32 data types (at least, not Byte which has not a sufficient range to express elevations). Eventually, looking at the associated metadata might be necessary to know the semantics of the data. Best regards, Even _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
