Ilwis::OperationImplementation::State RasterClassification::prepare(ExecutionContext *, const SymbolTable &sym){
QString rasterSetName = _expression.parm(0).value();
IRasterCoverage rcSet;
if (!rcSet.prepare(rasterSetName)) {
ERROR2(ERR_COULD_NOT_LOAD_2,rasterSetName,"");
return sPREPAREFAILED;
}
QString domain = _expression.parm(1).value();
IThematicDomain themes;
if ( !themes.prepare(domain)){
ERROR2(ERR_COULD_NOT_LOAD_2,domain,"");
return sPREPAREFAILED;
}
QString trainingsRaster = _expression.parm(2).value();
IRasterCoverage rcTraining;
if (!rcTraining.prepare(trainingsRaster, itRASTER)) {
ERROR2(ERR_COULD_NOT_LOAD_2,trainingsRaster,"");
return sPREPAREFAILED;
}
_sampleSet = SampleSet(rcSet, themes, rcTraining);
_sampleSet.prepare();
QString outputName = _expression.parm(0,false).value();
OperationHelperRaster::initialize(_sampleSet.sampleRasterSet(), _outputRaster, itCOORDSYSTEM | itGEODETICDATUM | itGEOREF | itRASTERSIZE);
if ( !_outputRaster.isValid()) {
ERROR1(ERR_NO_INITIALIZED_1, "output rastercoverage");
return sPREPAREFAILED;
}
_outputRaster->datadefRef().domain(_sampleSet.thematicDomain());
_outputRaster->size(_sampleSet.sampleRasterSet()->size().twod());
if ( outputName!= sUNDEF)
_outputRaster->name(outputName);
return sPREPARED;
}
void Ilwis::Postgresql::PostgresqlDatabaseUtil::prepareSubFeatureSemantics(Ilwis::IDomain &domain, const QList<MetaGeometryColumn> &geomColumns) const
{
QString columns;
if ( !_options.contains("pg.features.order")) {
auto join = [&columns](MetaGeometryColumn item) {
QString column = item.geomColumn;
return columns.isEmpty()
? columns.append(column)
: columns.append(",").append(column);
};
std::for_each(geomColumns.begin(), geomColumns.end(), join);
} else {
columns = _options["pg.features.order"].toString();
}
QStringList orderedColumns = columns.split(",");
NamedIdentifierRange priorities;
foreach (QString column, orderedColumns) {
priorities << column.trimmed();
}
IThematicDomain trackIdx;
trackIdx.prepare();
trackIdx->setRange(priorities);
domain = trackIdx;
}
