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| /* | ||
| MDAL - Mesh Data Abstraction Library (MIT License) | ||
| Copyright (C) 2018 Peter Petrik (zilolv at gmail dot com) | ||
| */ | ||
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| #include "mdal_gdal_netcdf.hpp" | ||
| #include "mdal_utils.hpp" | ||
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| MDAL::LoaderGdalNetCDF::LoaderGdalNetCDF( const std::string &netCDFFile ) | ||
| : MDAL::LoaderGdal( netCDFFile, "GRIB" ) | ||
| , mTimeDiv( 1.0 ) | ||
| { | ||
| } | ||
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| std::string MDAL::LoaderGdalNetCDF::GDALFileName( const std::string &fileName ) | ||
| { | ||
| #ifdef WIN32 | ||
| // Force usage of the predefined GDAL driver | ||
| // http://gis.stackexchange.com/a/179167 | ||
| // on Windows, HDF5 driver is checked before NETCDF driver in GDAL | ||
| return "NETCDF:\"" + fileName + "\""; | ||
| #else | ||
| return fileName; | ||
| #endif | ||
| } | ||
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| bool MDAL::LoaderGdalNetCDF::parseBandInfo( const MDAL::GdalDataset *cfGDALDataset, const MDAL::LoaderGdal::metadata_hash &metadata, std::string &band_name, double *time, bool *is_vector, bool *is_x ) | ||
| { | ||
| MDAL_UNUSED( cfGDALDataset ); | ||
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| metadata_hash::const_iterator iter; | ||
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| iter = metadata.find( "netcdf_dim_time" ); | ||
| if ( iter == metadata.end() ) return true; //FAILURE, skip no-time bands | ||
| *time = parseMetadataTime( iter->second ) / mTimeDiv; | ||
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| // NAME | ||
| iter = metadata.find( "long_name" ); | ||
| if ( iter == metadata.end() ) | ||
| { | ||
| iter = metadata.find( "netcdf_varname" ); | ||
| if ( iter == metadata.end() ) return true; //FAILURE, should be always present | ||
| band_name = iter->second; | ||
| } | ||
| else | ||
| { | ||
| band_name = iter->second; | ||
| } | ||
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| // Loop throught all additional dimensions but time | ||
| for ( iter = metadata.begin(); iter != metadata.end(); ++iter ) | ||
| { | ||
| std::string key = iter->first; | ||
| if ( MDAL::contains( key, "netcdf_dim_" ) ) | ||
| { | ||
| key = MDAL::replace( key, "netcdf_dim_", "" ); | ||
| if ( key != "time" ) | ||
| { | ||
| band_name += "_" + key + ":" + iter->second; | ||
| } | ||
| } | ||
| } | ||
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| // Parse X, Y components if present | ||
| parseBandIsVector( band_name, is_vector, is_x ); | ||
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| return false; // SUCCESS | ||
| } | ||
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| void MDAL::LoaderGdalNetCDF::parseGlobals( const MDAL::LoaderGdal::metadata_hash &metadata ) | ||
| { | ||
| metadata_hash::const_iterator iter = metadata.find( "time#units" ); | ||
| if ( iter != metadata.end() ) | ||
| { | ||
| std::string units = iter->second; | ||
| mTimeDiv = MDAL::parseTimeUnits( units ); | ||
| // TODO store reference time from iter->second too, see crayfish_netcdf.cpp | ||
| } | ||
| } |
| @@ -0,0 +1,34 @@ | ||
| /* | ||
| MDAL - Mesh Data Abstraction Library (MIT License) | ||
| Copyright (C) 2018 Peter Petrik (zilolv at gmail dot com) | ||
| */ | ||
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| #ifndef MDAL_GDAL_NETCDF_HPP | ||
| #define MDAL_GDAL_NETCDF_HPP | ||
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| #include "mdal_gdal.hpp" | ||
| #include "mdal_data_model.hpp" | ||
| #include "mdal.h" | ||
| #include <string> | ||
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| namespace MDAL | ||
| { | ||
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| class LoaderGdalNetCDF: public LoaderGdal | ||
| { | ||
| public: | ||
| LoaderGdalNetCDF( const std::string &netCDFFile ); | ||
| private: | ||
| std::string GDALFileName( const std::string &fileName ) override; | ||
| bool parseBandInfo( const MDAL::GdalDataset *cfGDALDataset, | ||
| const metadata_hash &metadata, std::string &band_name, | ||
| double *time, bool *is_vector, bool *is_x | ||
| ) override; | ||
| void parseGlobals( const metadata_hash &metadata ) override; | ||
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| //! delimiter to get time in hours | ||
| double mTimeDiv; | ||
| }; | ||
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| } // namespace MDAL | ||
| #endif // MDAL_GDAL_NETCDF_HPP |