@Override
public boolean processAlgorithm() throws GeoAlgorithmExecutionException {
m_LowerGrid = m_Parameters.getParameterValueAsRasterLayer(LGRID);
m_UpperGrid = m_Parameters.getParameterValueAsRasterLayer(UGRID);
m_LowerGrid.setWindowExtent(m_AnalysisExtent);
m_UpperGrid.setWindowExtent(m_AnalysisExtent);
m_iNX = m_LowerGrid.getNX();
m_iNY = m_LowerGrid.getNY();
return calculateVolumes();
}
