org.soulspace.astronomy.coordinates — org.soulspace.clj/astronomy.core 0.4.3

Coordinates functions and abstractions.

altitude-by-zenit-distance clj

(altitude-by-zenit-distance zenit-distance)

Calculates the altitude by zenit distance (given in rad).

angular-distance clj

(angular-distance [ra1 dec1] [ra2 dec2])

(angular-distance ra1 dec1 ra2 dec2)

Calculates the angular distance between the coordinates (given in rad).

cartesian-to-spherical clj

(cartesian-to-spherical cartesian-coords)

(cartesian-to-spherical x y z)

Converts cartesian to spherical coordinates.

hour-angle clj

(hour-angle instant ra)

Calculates the hour angle of the right ascension at the given instant.

ICelestialCoordinate clj protocol

Protocol for coordinate systems.

ecliptical clj

(ecliptical this)

(ecliptical this jd location)

Returns the ecliptical coordinates (lat/long).

equatorial clj

(equatorial this)

(equatorial this jd location)

Returns the equtorial coordinates (RA/Dec).

horizontal clj

(horizontal this)

(horizontal this jd location)

Returns the horizontal coordinates (Alt/Az).

mercator-projection clj

(mercator-projection)

Calculates the mercator projection of the coordinates.

orthographic-projection clj

(orthographic-projection R [long-0 lat-0] [long lat])

(orthographic-projection R long-0 lat-0 long lat)

Calculates the orthographic projection of the coordinates of the coordinates of long and lat for a map centered on the coordinates long-0 and lat-0.

orthographic-projector clj

(orthographic-projector R)

(orthographic-projector R [long-0 lat-0])

(orthographic-projector R long-0 lat-0)

Returns a function for orthographic projections.

pi-ninetieth clj

Defines Pi/90 for speed.

reverse-mercator-projection clj

(reverse-mercator-projection)

Calculates the coordinates in a reversed mercator projection.

reverse-orthographic-projection clj

(reverse-orthographic-projection R [long-0 lat-0] [x y])

(reverse-orthographic-projection R long-0 lat-0 x y)

Calculates the coordinates of x and y in a reversed orthographic projection for a map centered on the coordinates long-0 and lat-0.

reverse-orthographic-projector clj

(reverse-orthographic-projector R)

(reverse-orthographic-projector R [long-0 lat-0])

(reverse-orthographic-projector R long-0 lat-0)

Returns a function for reverse orthographic projections.

reverse-stereographic-projection clj

(reverse-stereographic-projection R k-0 [long-0 lat-0] [x y])

(reverse-stereographic-projection R k-0 long-0 lat-0 x y)

Calculates the coordinates of x and y in a reversed stereographic projection for a map centered on the coordinates long-0 and lat-0.

reverse-stereographic-projector clj

(reverse-stereographic-projector R)

(reverse-stereographic-projector R k-0)

(reverse-stereographic-projector R k-0 [long-0 lat-0])

(reverse-stereographic-projector R k-0 long-0 lat-0)

Returns a function for reverse stereographic projections.

spherical-to-cartesian clj

(spherical-to-cartesian spherical-coords)

(spherical-to-cartesian r beta lambda)

Converts spherical to cartesian coordinates.

stereographic-projection clj

(stereographic-projection R k-0 [long-0 lat-0] [long lat])

(stereographic-projection R k-0 long-0 lat-0 long lat)

Calculates the stereographic projection of the coordinates of long and lat for a map centered on the coordinates long-0 and lat-0.

stereographic-projector clj

(stereographic-projector R)

(stereographic-projector R k-0)

(stereographic-projector R k-0 [long-0 lat-0])

(stereographic-projector R k-0 long-0 lat-0)

Returns a function for stereographic projections.

zenit-distance-by-altitude clj

(zenit-distance-by-altitude altitude)

Calculates the zenit distance by altitude (given in rad).