Struct CalibrationSpec 

pub struct CalibrationSpec {
    pub id: Option<String>,
    pub unit: Option<String>,
    pub formula: CalibrationFormula,
}

Calibration definition for one channel.

Deserialized from the dashboard sensor settings by the archiver and from Parquet metadata by the exporter. The default is an unnamed identity calibration.

Fields

id: Option<String>

Optional identifier, kept for older configs and files. The exporter writes it in the calibration_id CSV column, or the formula’s type when it is None (see Self::id_or_default).

unit: Option<String>

Optional engineering unit of the calibrated value, such as kPa. Carried into Parquet metadata; omitted from the JSON when None.

formula: CalibrationFormula

Formula; its type tag and fields sit at the top level of the JSON object next to id (serde flatten).

Implementations

impl CalibrationSpec

pub fn apply(&self, raw: f64) -> f64

Applies the calibration formula to one raw sample value.

NaN and infinite inputs propagate through the arithmetic unchanged.

Arguments

• raw - Raw sample value as stored in the archive.

Returns

The calibrated value.

Examples

Linear { a: 2.0, b: -1.0 }             applied to 3.0 == 5.0
Polynomial { coeffs: [1.0, 0.0, 2.0] } applied to 3.0 == 1 + 2 * 9 == 19.0

pub fn id_or_default(&self) -> &str

Returns the configured calibration id, or the formula’s type when unnamed.

The fallback is the formula’s type tag (identity, linear or polynomial), so an unnamed linear calibration is not labelled identity.

Trait Implementations

impl Clone for CalibrationSpec

fn clone(&self) -> CalibrationSpec

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CalibrationSpec

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CalibrationSpec

fn default() -> Self

Creates an unnamed identity calibration.

impl<'de> Deserialize<'de> for CalibrationSpec

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for CalibrationSpec

fn eq(&self, other: &CalibrationSpec) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for CalibrationSpec

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for CalibrationSpec