View Source Astrex.Common (Astrex v0.3.4)
Common utilities to facilitate the astronomical calculations
- unit conversions: hours, degrees, angles
- normalizations within 360°, 2PI, 24 hours
- conversion from hour:minutes:seconds to hours and back
- conversion from degree:minutes:seconds to degrees and back
Link to this section Summary
Functions
formats an angle from degrees to a string "dd:mm:ss"
converts an angle expressed in degrees to an angle expressed in hours
Converts a "dd:mm:ss" string to degrees Receives the angle in d° m' s" as a binary string Returns the angle in DEGREES (float)
Converts a "hh:mm:ss" string to hours receives a binary string returns HOURS in float format
converts an angle expressed in hours to an angle expressed in degrees
formats an hour from hours to a string "hh:mm:ss"
converts an angle expressed in hours to an angle expressed in radians
Converts all values of a map from radians to degrees.
Converts all values of a map from degrees to radians.
returns the current time
Normalizes an angle into the range 0-2 pi Receives the angle in RADIANS Returns the normalized angle in RADIANS
Normalizes an hour angle into the range 0-24 hours Receives the angle in HOURS Returns the normalized angle in HOURS
Normalizes an angle into the range 0°-360° Receives the angle in DEGREES Returns the normalized angle in DEGREES
converts an angle expressed in radians to an angle expressed in hours
Link to this section Functions
formats an angle from degrees to a string "dd:mm:ss"
examples
Examples
iex> Astrex.Common.hours2hms(174.1234)
"174:07:24"
converts an angle expressed in degrees to an angle expressed in hours
Converts a "dd:mm:ss" string to degrees Receives the angle in d° m' s" as a binary string Returns the angle in DEGREES (float)
Converts a "hh:mm:ss" string to hours receives a binary string returns HOURS in float format
examples
Examples
iex> Astrex.Common.hms2hours("12:33:31")
12.558611111111112
converts an angle expressed in hours to an angle expressed in degrees
formats an hour from hours to a string "hh:mm:ss"
examples
Examples
iex> Astrex.Common.hours2hms(12.5587)
"12:33:31"
converts an angle expressed in hours to an angle expressed in radians
Converts all values of a map from radians to degrees.
Converts all values of a map from degrees to radians.
returns the current time:
- system time if production
- mock time is testing
Normalizes an angle into the range 0-2 pi Receives the angle in RADIANS Returns the normalized angle in RADIANS
Normalizes an hour angle into the range 0-24 hours Receives the angle in HOURS Returns the normalized angle in HOURS
Normalizes an angle into the range 0°-360° Receives the angle in DEGREES Returns the normalized angle in DEGREES
converts an angle expressed in radians to an angle expressed in hours