Enum Sounding 

pub enum Sounding {
    BelowTransducer,
    BelowKeel,
    BelowSurface,
}

What a sounding is measured from.

An echo sounder measures from its own face and knows nothing else. Every other reference is that measurement plus a distance somebody stated about the vessel, and the difference between them is not decoration: a keel offset is typically 0.3 to 1.5 m, which is the whole margin a boat has when it matters.

Variants

BelowTransducer

From the transducer face. What the instrument actually measured, and what NMEA’s DBT carries with no offset at all.

BelowKeel

From the bottom of the keel. What a mariner means by “how much water is under me”.

BelowSurface

From the water surface. What a chart means by a depth.

Trait Implementations

impl Clone for Sounding

fn clone(&self) -> Sounding

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Sounding

impl Debug for Sounding

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

Formats the value using the given formatter.

impl Eq for Sounding

impl PartialEq for Sounding

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Sounding