swiss-ephemeris changelog

Changelog History

• v1.2.1.0 Changes

  November 14, 2020

  • Introduces gregorianDateTime, which is the reverse of julianDay: given a JD, return a tuple with (year, month, day, decimalHour).

• v1.2.0.0 Changes

  September 14, 2020

  BREAKING CHANGE: splitDegrees now takes options that reflect the options in the underlying library.

  • Constructors for JulianTime and SiderealTime are now exposed.
  • Introduce SplitDegreesOption enum for all options one can split degrees with; amends splitDegrees to take
    said options as the first argument.
  • splitDegreesZodiac is unchanged, though a mere veneer for the now more powerful splitDegrees.
  • Since splitDegreesZodiac goes the extra enum-mile to provide human-readable zodiac names, and the underlying
    library can also split on Nakshatras, we now include the NakshatraName enum. Names are from wikipedia
    and I saw some variants, so please forgive any mispellings!

• v1.1.0.0 Changes

  September 12, 2020

  BREAKING CHANGE: the Coordinates type has been retired, in favor of the more specific
  GeographicPosition and EclipticPosition. calculateCoordinates is now calculateEclipticPosition,
  and the calculateCusps* family now takes a GeographicPosition as part of its inputs.

  • Introduces an Internal module with types and helpers that this library introduces,
    which are not native to the underlying C library. Import at your own risk! (the "curated"/
    "stable" ones are re-exported by the main module.)
    • Deprecates the Coordinates type, in favor of EclipticPosition.
  • Introduces functions to calculateEquatorialPosition and calculteObliquity at a given time,
    👍 as well as types that better convey the different types of positions (EquatorialPosition, ObliquityInformation).
  • Some astrology helpers: convert between equatorial and ecliptic (and vice-versa,)
    obtain the Delta Time effective at a given moment, obtain the house position of a given body.
    ( Note: the calculateHousePosition function is more useful for working near the polar circles or for bodies
    off of the ecliptic -- the ARMC and obliquity need to be calculated or provided, it's simpler
    if you already have the cusps: just check which cusps a given longitude falls between -- no need for
    this function!)

• v1.0.0.0 Changes

  September 07, 2020

  • ♻️ Refactor the calculateCusps function:
    • Return a simple list of cusps. This allows for future implementations of exotic systems that have more (or fewer?) cusps, and hews closer to regular usage (which iterates over the cusps.)
    • The house system comes first, to allow for more ergonomic partial application for uses where one system is the "default" (e.g. traditionalCusps = calculateCusps Placidus.)
  • ⚡️ Cleans up haddocks, adds many links to the original docs (and notes the headings, since updates to those seem to break hyperlinking?)

• v0.3.1.0 Changes

  September 07, 2020

  • 🛠 Fixes occasional segmentation fault (caught most often in the more memory-strapped CI server than in my computer,)
    📦 caused by using alloca for the error string and, when no error string was populated, ending with undefined
    📚 behavior. Now we explicitly allocate the 256 chars that the documentation and C sources recommend, which seems to be always
    freed by Haskell, vs. leaving a hole somewhere when the underlying library fails to terminate the string.

  👀 See notes in #9

• v0.3.0.0 Changes

  September 05, 2020

  • ⬆️ Upgrades to v2.09.03 of the C library, to incorporate some bug fixes that seem marginally related
    to random breakage I've seen; read more at: https://www.astro.com/swisseph/swephprg.htm#_Toc49847971
  • Introduces withoutEphemerides which sets the ephe path to NULL (via the also new setNoEphemeridesPath)
    👀 and takes care of calling closeEphemerides. Use this or withEphemerides for memory safety,
    only call the functions directly if you really know what you're doing (i.e setting/closing ephemerides
    in some other manner.)
  • Both calculation functions are now IO computations, to reflect the fact that they may interact
    with ephemeris data and allocate memory that closeEphemerides has to free.
  • More closely reflects the underlying behavior for calculating cusps: it may return
    cusps in the Porphyrius system if given a point for which the chosen system fails. To
    more explicitly reflect this, we now have calculateCuspsStrict which returns a Left value
    if the requested house system couldn't be used. calculateCuspsLenient always returns a calculation,
    0️⃣ and is aliased to calculateCusps as the "default" method.
  • Since the calculation may have changed the house system, we now return a systemUsed entry
    in the CuspsCalculation record.

  CI continues to not work, despite my insane efforts to resolve.

• v0.2.0.0 Changes

  September 04, 2020

  • Introduces withEphemerides for bracketed access to the ephemeris directory.
  • 🔄 Changes the signature of calculateCusps to return a Left value if the underlying library
    is unable to calculate the cusps.
  • Introduces "monadic" versions of the calculations that work with instances of MonadFail:
    calculateCuspsM and calculateCoordinatesM
  • 👌 Improves test coverage with property testing.

• v0.1.0.2 Changes

  August 13, 2020

  🏗 The build in hackage was failing, it seems like all header files need to be explicitly stated so they're included in the tarball!

• v0.1.0.0 Changes

  August 12, 2020

  • Bundles the C code for v2.09.01 of Swiss Ephemerides -- refer to that page and related documentation for other possible additions to this package!
  • 🚀 First release with basic bindings to calculate the coordinates of bodies between the Sun and Chiron, plus cusps and major angles -- calculateCoordinates and calculateCusps, respectively.
  • 👀 The functions setEphemeridesPath and closeEphemerides are provided to initialize (important) and release (less important) resources related to caching calculations and locating the data files for ephemerides.