Enum Extension 

pub enum Extension {
    DirectionSpeed {
        direction_degrees: u16,
        speed_knots: u16,
    },
    Phg {
        power_watts: u32,
        antenna_height_feet: u32,
        antenna_gain_db: u8,
        directivity: Directivity,
    },
    Rng {
        range_miles: u16,
    },
    Dfs {
        s_points: u8,
        antenna_height_feet: u32,
        antenna_gain_db: u8,
        directivity: Directivity,
    },
}

A data extension field that follows the position in the comment field.

Extensions occupy exactly 7 bytes and are encoded in a fixed format that depends on the extension type. Unknown or malformed extensions are discarded (the caller treats the entire comment field as the comment in that case).

Variants

DirectionSpeed

Course (degrees) and speed (knots). Format: DDD/SSS.

Fields

direction_degrees: u16

speed_knots: u16

Phg

Power-Height-Gain-Directivity. Format: PHGphgd.

Fields

power_watts: u32

antenna_height_feet: u32

antenna_gain_db: u8

directivity: Directivity

Rng

Pre-calculated radio range. Format: RNGrrrr.

Fields

range_miles: u16

Dfs

DF Strength-Height-Gain-Directivity. Format: DFSshgd.

Fields

s_points: u8

antenna_height_feet: u32

antenna_gain_db: u8

directivity: Directivity

Implementations

impl Extension

pub fn parse(data: &[u8]) -> Option<Self>

Attempt to parse the first 7 bytes of data as an extension field. Returns None if unrecognized or malformed.

pub fn encode(&self, out: &mut Vec<u8>)

Encode the extension field as exactly 7 bytes into out.

pub fn require(data: &[u8]) -> Result<Self, AprsError>

Returns an error if parsing fails where one was expected.

Trait Implementations

impl Clone for Extension

fn clone(&self) -> Extension

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Extension

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

Formats the value using the given formatter.

impl PartialEq for Extension

fn eq(&self, other: &Extension) -> 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 Extension