Struct LbvParams 

pub struct LbvParams {
    pub tol: f64,
    pub depth: Option<usize>,
    pub peel: usize,
    pub n1: usize,
    pub n2: usize,
    pub n3: usize,
    pub precision: LbvPrecision,
    pub b0: f64,
    pub echo_times: Vec<f64>,
    pub te: EchoTime,
}

LBV parameters (LBV.m’s defaults)

Fields

tol: f64

Stopping tolerance of the coarsest-grid relaxation (tol, default 0.01): the relaxation repeats while the summed absolute update over the coarsest interior exceeds it. Absolute, in MEDI’s units: radians accumulated over the echo time te picks. Must be finite and ≥ 0. Any other value is kept as given; the rule lbv.tolerance (crate::pipeline::rules::RULES) suggests LBV.m’s 0.01 (e.g. to a settings file holding the earlier SOR solver’s relative 1e-6).

depth: Option<usize>

Coarsest multigrid level (depth). None (LBV.m’s −1, the default): ⌊log2 m⌋ − 3 for the smallest dimension m, at least 0. At most 8.

peel: usize

Boundary layers removed beyond the one boundary layer (peel, default 0)

n1: usize

Relaxations on each level before the recursive call (N1, default 30)

n2: usize

Relaxations on each level after the recursive call (N2, default 100)

n3: usize

Relaxations on the finest level after the full multigrid cycle (N3, default 100)

precision: LbvPrecision

Arithmetic (default LbvPrecision::Double; Single is mexMGv6’s own)

b0: f64

Field strength in Tesla (scan parameter, for the radian conversion)

echo_times: Vec<f64>

Echo times in seconds (scan parameter, for the radian conversion)

te: EchoTime

Which echo time converts the field from ppm to radians. Default EchoTime::Spacing, MEDI’s delta_TE (TE(2) − TE(1), or TE for one echo): LBV.m takes iFreq from Fit_ppm_complex, the phase accrued over the echo spacing, and its tol is absolute in those units.

Implementations

impl LbvParams

pub fn validate(&self) -> Result<(), InputError>

Check the parameters (not the scan’s echo times, which lbv resolves).

Trait Implementations

impl Clone for LbvParams

fn clone(&self) -> LbvParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LbvParams

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

Formats the value using the given formatter.

impl Default for LbvParams

fn default() -> Self

Returns the “default value” for a type.

impl Serialize for LbvParams

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

where __S: Serializer,

Serialize this value into the given Serde serializer.