On 11-05-13 01:13 PM, supercooper wrote:
Dataset dsDem = demDriver.Create("C:\\Data\\65587895\\foo.dem", x, y, 1, DataType.GDT_Int16, opts);Gives the error: System.ApplicationException: GDALDriver::Create() ... no create method implemented for this format. I thought the USGSDEM format was read/write...am I wrong on that? The formats list (http://www.gdal.org/formats_list.html) says that creation of USGSDEM is supported, but a run of demDriver.GetMetadata(null) to get the metadata from the USGSDEM driver results in no return DCAP_CREATE=YES, only DCAP_CREATECOPY=YES, which makes me cringe, thinking that indeed the GDALDriver::Create() method is not implemented for the USGSDEM format.
Super Cooper, Indeed, the USGSDEM driver only implements CreateCopy(), not Create(). ASCII formats like this one are not very easy to implement Create support with as they aren't well suited to random update.
I've also poked thought the source for the USGSDEM format, and don't see anything in there pertaining to creating a dem (although I could easily miss that, as I am by no means fluent in C++).
The CreateCopy implementation is in usgsdem_create.c in the same directory as the read driver. Best regards, -- ---------------------------------------+-------------------------------------- I set the clouds in motion - turn up | Frank Warmerdam, warmer...@pobox.com light and sound - activate the windows | http://pobox.com/~warmerdam and watch the world go round - Rush | Geospatial Programmer for Rent _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
