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Stellarium
0.20.4
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Stellarium
0.20.4
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The Aztec Xihuitl was similar to the Maya Haab, a 365-day Solar calendar without intercalation. More...
#include <AztecXihuitlCalendar.hpp>
Public Member Functions | |
| AztecXihuitlCalendar (double jd) | |
| virtual void | retranslate () Q_DECL_OVERRIDE |
| Translate e.g. stringlists of part names. | |
| virtual void | setJD (double JD) Q_DECL_OVERRIDE |
| Set a calendar date from the Julian day number. | |
| virtual void | setDate (QVector< int > parts) Q_DECL_OVERRIDE |
| set date from a vector of calendar date elements sorted from the largest to the smallest. More... | |
| virtual QStringList | getDateStrings () const Q_DECL_OVERRIDE |
| get a stringlist of calendar date elements sorted from the largest to the smallest. More... | |
| virtual QString | getFormattedDateString () const Q_DECL_OVERRIDE |
| get a formatted complete string for a date | |
 Public Member Functions inherited from Calendar | |
| Calendar (double jd) | |
| virtual double | getJD () const |
| Get Julian day number from a calendar date. | |
| virtual QVector< int > | getDate () const |
| get a vector of calendar date elements sorted from the largest to the smallest. More... | |
| int | rdCorrSum (QVector< int >factors, int corr) |
Static Public Member Functions | |
| static int | aztecXihuitlOrdinal (QVector< int > xihuitl) |
| find number in sequence from a xihuitl date of {month[1...19], day[1...20]} | |
| static int | aztecXihuitlOnOrBefore (QVector< int > xihuitl, int rd) |
| find RD number of a Xihuitl date on or before rd. | |
| static int | aztecXihuitlTonalpohualliOnOrBefore (QVector< int >xihuitl, QVector< int >tonalpohualli, int rd) |
| get RD of a combined date on or before rd. They repeat every 18980 days. | |
| Static Public Member Functions inherited from Calendar | |
| static double | momentFromJD (double jd, bool respectUTCoffset=true) |
| Interfacing function from Reingold/Dershowitz: Calendrical Calculations Returns a "moment" in RD that represents JD. More... | |
| static int | fixedFromMoment (double rd) |
| static double | timeFromMoment (double rd) |
| static int | fixedFromJD (double jd, bool respectUTCoffset=true) |
| Interfacing function from Reingold/Dershowitz: Calendrical Calculations Returns a fixed date in RD that represents noon of JD. More... | |
| static double | momentFromMJD (double mjd) |
| static double | jdFromMoment (double rd, bool respectUTCoffset=true) |
| interfacing function from Reingold/Dershowitz: Calendrical Calculations Returns a JD from an RD "moment" (including fractions of day) Stellarium extension: optionally includes local time zone offset. More... | |
| static double | jdFromFixed (double rd, bool respectUTCoffset=true) |
| interfacing function from Reingold/Dershowitz: Calendrical Calculations Returns a JD from an RD "moment" (including fractions of day) Stellarium extension: optionally includes local time zone offset. More... | |
| static double | mjdFromFixed (double rd) |
| static int | dayOfWeekFromFixed (int rd) |
| weekday from RD date. CC.UE(1.60). | |
| static int | kdayOnOrBefore (const Calendar::Day k, const int rd) |
| the R.D. of the nearest weekday k on or before rd | |
| static int | kdayOnOrAfter (const Calendar::Day k, const int rd) |
| the R.D. of the nearest weekday k on or after rd | |
| static int | kdayNearest (const Calendar::Day k, const int rd) |
| the R.D. of the nearest weekday k around rd | |
| static int | kdayBefore (const Calendar::Day k, const int rd) |
| the R.D. of the nearest weekday k before rd | |
| static int | kdayAfter (const Calendar::Day k, const int rd) |
| the R.D. of the nearest weekday k after rd | |
| static double | modInterval (double x, double a, double b) |
| Interval modulus, CC.UE 1.24. More... | |
| static int | modInterval (int x, int a, int b) |
| Interval modulus, CC.UE 1.24: This EXCLUDES the upper limit! Use StelUtils::amod(x, b) for CC's (x)mod[1..b]. | |
| static int | rdCorrSum (QVector< int >parts, QVector< int >factors, int corr) |
| Reingold-Dershowitz CC.UE 1.48. | |
| static QVector< int > | toRadix (int num, QVector< int >radix) |
| Split integer to mixed-radix vector. Reingold-Dershowitz CC.UE 1.42. | |
Static Public Attributes | |
| static const int | aztecCorrelation |
| Aztec date of fall of Tenochtitlan. | |
| static const int | aztecXihuitlCorrelation |
| Static Public Attributes inherited from Calendar | |
| static constexpr const double | J2000 =2451545.0 |
| static constexpr const double | jdEpoch =-1721424.5 |
| static constexpr const double | mjdEpoch =678576.0 |
| static constexpr const int | bogus =-1000000 |
Additional Inherited Members | |
| Public Types inherited from Calendar | |
| enum | Day { sunday = 0, monday, tuesday, wednesday, thursday, friday, saturday } |
| enum from CC.UE-ch1.12. | |
| enum | Season { spring = 0, summer = 90, autumn = 180, winter = 270 } |
| Signals inherited from Calendar | |
| void | partsChanged (QVector< int > parts) |
| void | jdChanged (double jd) |
| Protected Attributes inherited from Calendar | |
| double | JD |
| QVector< int > | parts |
| date expressed as JD(UT), including day fraction (ready to interact with the main application) | |
The major difference is that days are counted 1...20, not 0...19. Similar to the Egyptian calendar, after 18 months of 20 days there was a short "month" of 5 extra days (Nemontemi). Some communities place this month of "worthless" days elsewhere in the sequence, this cannot be mapped here. The implementation follows CC.
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virtual |
monthName-day[1..20]
Implements Calendar.
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virtual |
month[1..19]-day[1..20] We face a problem as the year is not counted. We can only find the date before current JD which matches the parts.
Implements Calendar.
1.8.13