QMap<QString, QString> DataInterfaceNetCdfVector::metaStrings(const QString& field)
{
QMap<QString, QString> fieldStrings;
QString tmpString;
NcVar *var = netcdf._ncfile->get_var(field.toLatin1().constData());
for (int i=0; i<var->num_atts(); ++i) {
NcAtt *att = var->get_att(i);
// Only handle char/unspecified attributes as fieldStrings, the others as fieldScalars
if (att->type() == NC_CHAR || att->type() == NC_UNSPECIFIED) {
fieldStrings[att->name()] = QString(att->values()->as_string(0));
}
// qDebug() << att->name() << ": " << att->values()->num() << endl;
}
return fieldStrings;
}
void CopyNcVarAttributes(
NcVar * varIn,
NcVar * varOut
) {
for (int a = 0; a < varIn->num_atts(); a++) {
NcAtt * att = varIn->get_att(a);
long num_vals = att->num_vals();
NcValues * pValues = att->values();
if (att->type() == ncByte) {
varOut->add_att(att->name(), num_vals,
(const ncbyte*)(pValues->base()));
} else if (att->type() == ncChar) {
varOut->add_att(att->name(), num_vals,
(const char*)(pValues->base()));
} else if (att->type() == ncShort) {
varOut->add_att(att->name(), num_vals,
(const short*)(pValues->base()));
} else if (att->type() == ncInt) {
varOut->add_att(att->name(), num_vals,
(const int*)(pValues->base()));
} else if (att->type() == ncFloat) {
varOut->add_att(att->name(), num_vals,
(const float*)(pValues->base()));
} else if (att->type() == ncDouble) {
varOut->add_att(att->name(), num_vals,
(const double*)(pValues->base()));
} else {
_EXCEPTIONT("Invalid attribute type");
}
delete pValues;
}
}
QMap<QString, double> DataInterfaceNetCdfVector::metaScalars(const QString& field)
{
QMap<QString, double> fieldScalars;
NcVar *var = netcdf._ncfile->get_var(field.toLatin1().constData());
fieldScalars["NbAttributes"] = var->num_atts();
for (int i=0; i<var->num_atts(); ++i) {
NcAtt *att = var->get_att(i);
// Only handle char attributes as fieldStrings, the others as fieldScalars
if (att->type() == NC_BYTE || att->type() == NC_SHORT || att->type() == NC_INT
|| att->type() == NC_LONG || att->type() == NC_FLOAT || att->type() == NC_DOUBLE) {
// Some attributes may have multiple values => load the first as is, and for the others
// add a -2, -3, etc... suffix as obviously we can have only one value per scalar.
// Do it in two steps to avoid a test in the loop while keeping a "clean" name for the first one
fieldScalars[QString(att->name())] = att->values()->as_double(0);
for (int j=1; j<att->values()->num(); ++j) {
fieldScalars[QString(att->name()) + QString("-") + QString::number(j+1)] = att->values()->as_double(j);
}
}
}
return fieldScalars;
}