static QString openHdfAttribute(const HdfFile& hdfFile, const QString& name)
{
HdfAttribute attr = hdfFile.attribute(name);
if (!attr.isValid())
{
throw LoadStatus::Err_UnknownFormat;
}
return attr.readString();
}
bool MDAL::DriverFlo2D::parseHDF5Datasets( const std::string &datFileName )
{
//return true on error
size_t nFaces = mMesh->facesCount();
std::string timedepFileName = fileNameFromDir( datFileName, "TIMDEP.HDF5" );
if ( !fileExists( timedepFileName ) ) return true;
HdfFile file( timedepFileName );
if ( !file.isValid() ) return true;
HdfGroup timedataGroup = file.group( "TIMDEP NETCDF OUTPUT RESULTS" );
if ( !timedataGroup.isValid() ) return true;
std::vector<std::string> groupNames = timedataGroup.groups();
for ( const std::string &grpName : groupNames )
{
HdfGroup grp = timedataGroup.group( grpName );
if ( !grp.isValid() ) return true;
HdfAttribute groupType = grp.attribute( "Grouptype" );
if ( !groupType.isValid() ) return true;
/* Min and Max arrays in TIMDEP.HDF5 files have dimensions 1xntimesteps .
HdfDataset minDs = grp.dataset("Mins");
if (!minDs.isValid()) return true;
HdfDataset maxDs = grp.dataset("Maxs");
if (!maxDs.isValid()) return true;
*/
HdfDataset timesDs = grp.dataset( "Times" );
if ( !timesDs.isValid() ) return true;
size_t timesteps = timesDs.elementCount();
HdfDataset valuesDs = grp.dataset( "Values" );
if ( !valuesDs.isValid() ) return true;
bool isVector = MDAL::contains( groupType.readString(), "vector", ContainsBehaviour::CaseInsensitive );
// Some sanity checks
size_t expectedSize = mMesh->facesCount() * timesteps;
if ( isVector ) expectedSize *= 2;
if ( valuesDs.elementCount() != expectedSize ) return true;
// Read data
std::vector<double> times = timesDs.readArrayDouble();
std::vector<float> values = valuesDs.readArray();
// Create dataset now
std::shared_ptr<DatasetGroup> ds = std::make_shared< DatasetGroup >(
name(),
mMesh.get(),
datFileName,
grpName
);
ds->setIsOnVertices( false );
ds->setIsScalar( !isVector );
for ( size_t ts = 0; ts < timesteps; ++ts )
{
std::shared_ptr< MemoryDataset > output = std::make_shared< MemoryDataset >( ds.get() );
output->setTime( times[ts] );
if ( isVector )
{
// vector
for ( size_t i = 0; i < nFaces; ++i )
{
size_t idx = 2 * ( ts * nFaces + i );
double x = getDouble( static_cast<double>( values[idx] ) );
double y = getDouble( static_cast<double>( values[idx + 1] ) );
output->values()[2 * i] = x;
output->values()[2 * i + 1] = y;
}
}
else
{
// scalar
for ( size_t i = 0; i < nFaces; ++i )
{
size_t idx = ts * nFaces + i;
double val = getDouble( static_cast<double>( values[idx] ) );
output->values()[i] = val;
}
}
addDatasetToGroup( ds, output );
}
// TODO use mins & maxs arrays
ds->setStatistics( MDAL::calculateStatistics( ds ) );
mMesh->datasetGroups.push_back( ds );
}
return false;
}