Struct CubeMeta

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pub struct CubeMeta {
    pub path: PathBuf,
    pub nx: usize,
    pub ny: usize,
    pub nfreq: usize,
    pub nstokes: usize,
    pub dx_deg: f64,
    pub dy_deg: f64,
    pub crpix_freq: f64,
    pub beams: Vec<Option<Beam>>,
    pub is_4d: bool,
    pub unit: BrightnessUnit,
    pub dtype: PixelType,
}

Expand description

Metadata of a FITS spectral cube.

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§path: PathBuf§nx: usize

NAXIS1 (RA).

§ny: usize

NAXIS2 (Dec).

§nfreq: usize§nstokes: usize§dx_deg: f64

|CDELT1| in degrees.

§dy_deg: f64

|CDELT2| in degrees.

§crpix_freq: f64

CRPIX of the spectral axis, truncated to a whole pixel as racs_tools does. Picks the channel whose beam goes in the output header; may lie outside 1..=nfreq.

§beams: Vec<Option<Beam>>

Per-channel beams; None for a masked channel.

§is_4d: bool§unit: BrightnessUnit§dtype: PixelType

Implementations§

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impl CubeMeta

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pub fn channel_range(&self, chan: usize) -> (usize, usize)

Flat pixel range [start, end) of channel chan (first Stokes plane). With one Stokes plane both axis orders put channel c at c·ny·nx.

Trait Implementations§

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impl Debug for CubeMeta

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for CubeMeta

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