bool rspfGeneralRasterTileSource::open()
{
static const char MODULE[] = "rspfGeneralRasterTileSource::open";
if (traceDebug()) CLOG << " Entered..." << std::endl;
bool result = false;
if(isOpen())
{
close();
}
//---
// Find the header file:
//
// We need lines, samples, bands, scalar and interleave at a minimum:
//
// A general raster image requires a keyword list to get essential image
// information or meta data as its sometimes called. The meta data file
// can have four types of extensions: ".omd", ".hdr", ".kwl" and xml.
// Look for them in that order.
// Note that the ".omd" extension is for "Ossim Meta Data" and was made
// up to avoid conflicting with other software packages ".hdr" files.
//---
if ( m_rasterInfo.open( theImageFile ) )
{
theMetaData = m_rasterInfo.getImageMetaData();
result = initializeHandler();
if ( result )
{
completeOpen();
if ( isBandSelector() && m_outputBandList.size() && ( isIdentityBandList( m_outputBandList ) == false ) )
{
// This does range checking and will pass to overview if open.
setOutputBandList( m_outputBandList );
}
}
}
if ( traceDebug() )
{
rspfNotify(rspfNotifyLevel_DEBUG)
<< MODULE << " Exit status: " << (result?"true":"false") << std::endl;
}
return result;
}
bool ossimGeneralRasterTileSource::setOutputBandList(const std::vector<ossim_uint32>& band_list)
{
bool result = false;
if ( isBandSelector() )
{
// Making a copy as passed in list could be our m_outputBandList.
std::vector<ossim_uint32> inputList = band_list;
result = ossimImageHandler::setOutputBandList( inputList, m_outputBandList );
if ( result && m_tile.valid() )
{
if ( m_tile->getNumberOfBands() != m_outputBandList.size() )
{
m_tile = 0; // Force a reinitialize on next getTile.
}
}
}
return result;
}
