void ossimH5Reader::addImageDatasetEntries(const std::vector<std::string>& names)
{
if ( m_h5File && names.size() )
{
std::vector<std::string>::const_iterator i = names.begin();
while ( i != names.end() )
{
if ( ossim_hdf5::isExcludedDataset( *i ) == false )
{
H5::DataSet dataset = m_h5File->openDataSet( *i );
// Get the class of the datatype that is used by the dataset.
H5T_class_t type_class = dataset.getTypeClass();
if ( ( type_class == H5T_INTEGER ) || ( type_class == H5T_FLOAT ) )
{
// Get the extents:
std::vector<ossim_uint32> extents;
ossim_hdf5::getExtents( &dataset, extents );
if ( extents.size() >= 2 )
{
if ( ( extents[0] > 1 ) && ( extents[1] > 1 ) )
{
ossimH5ImageDataset hids;
hids.initialize( dataset, *i );
m_entries.push_back( hids );
}
}
}
dataset.close();
}
++i;
}
}
#if 0 /* Please leave for debug. (drb) */
std::vector<ossimH5ImageDataset>::const_iterator i = m_entries.begin();
while ( i != m_entries.end() )
{
std::cout << (*i) << endl;
++i;
}
#endif
} // End: ossimH5Reader::addImageDatasetEntries
bool ossim_hdf5::isLoadableAsImage( H5::H5File* file, const std::string& datasetName )
{
bool result = false;
// std::cout << "isLoadable entered..." << std::endl;
if ( file && datasetName.size() )
{
if ( isExcludedDataset( datasetName ) == false )
{
H5::DataSet dataset = file->openDataSet( datasetName );
// Get the class of the datatype that is used by the dataset.
H5T_class_t type_class = dataset.getTypeClass();
// std::cout << "Class type: " << ossim_hdf5::getDatatypeClassType( type_class )
// << std::endl;
if ( ( type_class == H5T_INTEGER ) || ( type_class == H5T_FLOAT ) )
{
// Get dataspace of the dataset.
// H5::DataSpace dataspace = dataset.getSpace();
// Get the extents:
std::vector<ossim_uint32> extents;
ossim_hdf5::getExtents( &dataset, extents );
if ( extents.size() >= 2 )
{
if ( ( extents[0] > 1 ) && ( extents[1] > 1 ) )
{
// std::cout << "Accepting dataset: " << datasetName << std::endl;
result = true;
}
}
}
dataset.close();
}
}
// std::cout << "isLoadable exit status: " << (result?"true":"false") << std::endl;
return result;
}
void ossim_hdf5::printObject( H5::H5File* file,
const std::string& objectName,
const std::string& prefix,
std::ostream& out )
{
#if 0
std::cout << "printObject entered..."
<< "\nobjectName: " << objectName
<< "\nprefix: " << prefix
<< std::endl;
#endif
H5::DataSet dataset = file->openDataSet( objectName );
// Get the class of the datatype that is used by the dataset.
H5T_class_t type_class = dataset.getTypeClass();
out << prefix << ".class_type: "
<< ossim_hdf5::getDatatypeClassType( type_class ) << std::endl;
const ossim_uint32 ATTRS_COUNT = dataset.getNumAttrs();
for ( ossim_uint32 aIdx = 0; aIdx < ATTRS_COUNT; ++aIdx )
{
H5::Attribute attr = dataset.openAttribute( aIdx );
ossim_hdf5::printAttribute( attr, prefix, out );
attr.close();
}
// Extents:
std::vector<ossim_uint32> extents;
ossim_hdf5::getExtents( &dataset, extents );
for ( ossim_uint32 i = 0; i < extents.size(); ++i )
{
ossimString os;
std::string exStr = ".extent";
exStr += os.toString(i).string();
out << prefix << exStr << ": " << extents[i] << std::endl;
}
// ossimScalarType scalar = getScalarType( type_class, dataset.getId() );
ossimScalarType scalar = ossim_hdf5::getScalarType( dataset.getId() );
if ( scalar != OSSIM_SCALAR_UNKNOWN)
{
out << prefix << "." << ossimKeywordNames::SCALAR_TYPE_KW << ": "
<< ossimScalarTypeLut::instance()->getEntryString( scalar ) << std::endl;
if ( ossim::scalarSizeInBytes( scalar ) > 1 )
{
ossimByteOrder byteOrder = ossim_hdf5::getByteOrder( &dataset );
std::string byteOrderString = "little_endian";
if ( byteOrder == OSSIM_BIG_ENDIAN )
{
byteOrderString = "big_endian";
}
out << prefix << "." <<ossimKeywordNames::BYTE_ORDER_KW << ": "
<< byteOrderString << std::endl;
}
}
#if 0
// Attributes:
int numberOfAttrs = dataset.getNumAttrs();
cout << "numberOfAttrs: " << numberOfAttrs << endl;
for ( ossim_int32 attrIdx = 0; attrIdx < numberOfAttrs; ++attrIdx )
{
H5::Attribute attribute = dataset.openAttribute( attrIdx );
cout << "attribute.from class: " << attribute.fromClass() << endl;
}
#endif
dataset.close();
} // End: printObject