QString AttributeModel::actualRangeDefintion(bool calc) const
{
QString rangeString;
if ( _coldefinition.isValid()) {
if ( calc || _coldefinition.datadef().range().isNull()) {
if ( hasType( _owner->ilwisType() , itFEATURE)) {
Ilwis::IFeatureCoverage features = _owner.as<Ilwis::FeatureCoverage>();
if ( !features.isValid())
return "";
features->loadData();
std::vector<QVariant> data = features->attributeTable()->column(_coldefinition.name());
if ( data.size() != 0) {
std::vector<double> values(data.size());
int i=0;
for(auto v : data)
values[i++] = v.toDouble();
Ilwis::NumericStatistics stats; // realy like to do this with a template specialization of the proper calculate function, but the syntax was unclear to me
stats.calculate(values.begin(), values.end());
Ilwis::NumericRange *rng = new Ilwis::NumericRange(stats.prop(Ilwis::NumericStatistics::pMIN),stats.prop(Ilwis::NumericStatistics::pMAX));
features->attributeDefinitionsRef().columndefinitionRef(_coldefinition.name()).datadef().range(rng);
const_cast<AttributeModel *>(this)->_coldefinition = features->attributeDefinitions().columndefinition(_coldefinition.name());
}
}
}
rangeString = _coldefinition.datadef().range()->toString();
}
return rangeString;
}
