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Fix scaling of missing values in encode-mtg2 action #248

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Merged
dsarmany merged 1 commit into from
Mar 18, 2026
Merged

Fix scaling of missing values in encode-mtg2 action #248

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14 changes: 12 additions & 2 deletions src/multio/action/encode-mtg2/EncodeMtg2.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -80,8 +80,18 @@ void EncodeMtg2::executeImpl(Message msg) {
ASSERT(values);

const auto scaleFactor = *(mappingResult->valuesScaleFactor);
std::transform(values, values + size, values,
[&](const Precision& value) -> Precision { return value * scaleFactor; });

if (miscRec.missingValue.isSet()) {
const double missing = miscRec.missingValue.get();
std::transform(values, values + size, values, [&](const Precision& value) -> Precision {
return static_cast<Precision>(value == missing ? missing : value * scaleFactor);
});
}
else {
std::transform(values, values + size, values, [&](const Precision& value) -> Precision {
return static_cast<Precision>(value * scaleFactor);
});
}
}

// Call the GRIB2 encoder in metkit
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