Class: Astronoby::Coordinates::Ecliptic

Inherits:

Object

• Object
• Astronoby::Coordinates::Ecliptic

Defined in:

lib/astronoby/coordinates/ecliptic.rb

Overview

Ecliptic coordinate system (latitude and longitude relative to the ecliptic plane).

Instance Attribute Summary

• #latitude ⇒ Astronoby::Angle readonly

  Ecliptic latitude.

• #longitude ⇒ Astronoby::Angle readonly

  Ecliptic longitude.

Class Method Summary

• .zero ⇒ Astronoby::Coordinates::Ecliptic

  Zero coordinates.

Instance Method Summary

• #initialize(latitude:, longitude:) ⇒ Ecliptic constructor

  A new instance of Ecliptic.

Constructor Details

#initialize(latitude:, longitude:) ⇒ Ecliptic

Returns a new instance of Ecliptic.

Parameters:

• latitude (Astronoby::Angle) —

  ecliptic latitude

• longitude (Astronoby::Angle) —

  ecliptic longitude

# File 'lib/astronoby/coordinates/ecliptic.rb', line 16

def initialize(latitude:, longitude:)
  @latitude = latitude
  @longitude = longitude
end

Instance Attribute Details

#latitude ⇒ Astronoby::Angle (readonly)

Returns ecliptic latitude.

Returns:

• (Astronoby::Angle) —

  ecliptic latitude

# File 'lib/astronoby/coordinates/ecliptic.rb', line 9

def latitude
  @latitude
end

#longitude ⇒ Astronoby::Angle (readonly)

Returns ecliptic longitude.

Returns:

• (Astronoby::Angle) —

  ecliptic longitude

# File 'lib/astronoby/coordinates/ecliptic.rb', line 12

def longitude
  @longitude
end

Class Method Details

.zero ⇒ Astronoby::Coordinates::Ecliptic

Returns zero coordinates.

Returns:

• (Astronoby::Coordinates::Ecliptic) —

  zero coordinates

# File 'lib/astronoby/coordinates/ecliptic.rb', line 22

def self.zero
  new(latitude: Angle.zero, longitude: Angle.zero)
end