Struct EopData 

pub struct EopData { /* private fields */ }

Container for Earth/Body Orientation Parameters data.

• On Earth this would enable time scale conversions to and from the UT1 time scale.
• Earth Orientation Parameters data is available from: https://maia.usno.navy.mil/ser7/finals2000A.all

Implementations

impl EopData

pub fn data_from_reader<R: BufRead>( reader: R, format: EopFormat, separator: Separator, ) -> Result<Vec<EopDataRow>, DtErr>

Parse EOP data from any std::io::BufRead (file, network stream, etc.).

Lines starting with # or longer than [MAX_LINE_LEN] are skipped. The returned vector is always sorted by MJD.

pub fn data_from_text_file<P: AsRef<Path>>( path: P, format: EopFormat, separator: Separator, ) -> Result<Vec<EopDataRow>, DtErr>

Returns a Vec of EopDataRow from a text file on disk.

Examples

use deep_time::eop::{EopData, EopFormat, Separator};

let path = "finals.all.iau2000.txt";
let rows = EopData::data_from_text_file(path, EopFormat::Finals2000A, Separator::Whitespace).unwrap();

See also

• EopData::from_text_file

pub fn from_text_file<P: AsRef<Path>>( path: P, format: EopFormat, separator: Separator, ) -> Result<Self, DtErr>

Create an EopData by loading from a text file on disk.

Examples

use deep_time::eop::{EopData, EopFormat, Separator};

let path = "finals.all.iau2000.txt";
let provider = EopData::from_text_file(path, EopFormat::Finals2000A, Separator::Whitespace).unwrap();

impl EopData

pub const MAX_LINE_LEN: usize = 8192

pub fn data_from_str( s: &str, format: EopFormat, separator: Separator, ) -> Result<Vec<EopDataRow>, DtErr>

Parse EOP data from a &str.

Useful when the data is already in memory (embedded resource, downloaded string, etc.).

pub fn data_from_bytes( bytes: &[u8], format: EopFormat, separator: Separator, ) -> Result<Vec<EopDataRow>, DtErr>

Parse EOP data from raw bytes.

The bytes are interpreted as UTF-8. Invalid UTF-8 sequences result in an empty string (and therefore an error).

pub fn from_str( s: &str, format: EopFormat, separator: Separator, ) -> Result<Self, DtErr>

Create an EopData from a string slice.

pub fn from_bytes( bytes: &[u8], format: EopFormat, separator: Separator, ) -> Result<Self, DtErr>

Create an EopData from raw bytes.

pub fn eop_offset(&self, mjd: Real) -> Option<EopOffset>

Returns all interpolated orientation parameters (offset + polar motion) at the given MJD.

Returns None if the table is empty or the MJD is completely outside the loaded data.

Trait Implementations

impl Clone for EopData

fn clone(&self) -> EopData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EopData

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

Formats the value using the given formatter.