Struct Field 

pub struct Field { /* private fields */ }

The angular extent of a frame.

Implementations

impl Field

pub fn from_optics(o: Optics) -> Result<Self>

Derive a field from full optics.

Effective pixel size = pixel size × binning (per axis); pixel scale (arcsec/px) = effective pixel size (mm) / focal length (mm) × arcsec/radian; field extent = pixel scale × pixel count.

Errors

Error::InvalidOptics if any input is non-positive or non-finite.

pub fn from_pixel_scale( scale_arcsec_px: (f64, f64), pixels: (u32, u32), ) -> Result<Self>

Build a field from a directly supplied pixel scale (arcsec/px, per axis) and sensor pixel counts.

Errors

Error::InvalidOptics if any input is non-positive or non-finite.

pub fn from_fov(width: Angle, height: Angle) -> Result<Self>

Build a field directly from its angular width and height (no optics; pixel scale is unknown).

Errors

Error::InvalidOptics if width or height is non-positive or non-finite.

pub fn width(self) -> Angle

Field width (x extent).

pub fn height(self) -> Angle

Field height (y extent).

pub fn diagonal(self) -> Angle

Diagonal field of view.

pub fn pixel_scale(self) -> Option<(f64, f64)>

Per-axis pixel scale (arcsec/px), if this field was built with a scale.

pub fn radius(self, policy: RadiusPolicy) -> Angle

Compute a search radius from this field under policy.

Trait Implementations

impl Clone for Field

fn clone(&self) -> Field

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Field

impl Debug for Field

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Field

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Field

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Field

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Field