mna_param_binding.h File Reference

Formula-driven binding that recomputes one MNA parameter from an expression whenever its triggers fire. More...

#include "mna_global.h"
#include <QString>
#include <QStringList>
#include <QJsonObject>
#include <QCborMap>

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Classes
struct	MNALIB::MnaParamBinding
	Dynamic parameter binding for the MNA parameter tree. More...

Namespaces
namespace	MNALIB
	MNE Analysis Container Format (mna/mnx).

Detailed Description

Formula-driven binding that recomputes one MNA parameter from an expression whenever its triggers fire.

SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2026 MNE-CPP Authors

Author

Christoph Dinh chris.nosp@m.toph.nosp@m..dinh.nosp@m.@mne.nosp@m.-cpp..nosp@m.org

Since

2.2.0

Date

April 2026

MnaParamBinding turns the otherwise static MnaParamTree into a reactive system. Each binding links a targetPath (typically nodeId/attrKey) to an expression that references upstream results or other parameters through the ref("…") helper — for example "clamp(ref('noise_est_01/snr') * 0.1, @c 0.01, @c 1.0)" — so a downstream node's regularisation can be derived live from an SNR estimate produced earlier in the graph.

The trigger field selects when the formula is re-evaluated: on_change fires whenever any path in dependencies updates, periodic re-evaluates every periodMs (useful for streaming pipelines), and manual leaves evaluation to explicit user action. JSON/CBOR round-trip is symmetric so bindings survive project save/load without loss of semantics.

Definition in file mna_param_binding.h.