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IamNotProgrammerIamNotProgrammer
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‎Astime.pro‎

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Original file line numberDiff line numberDiff line change
@@ -2,6 +2,8 @@ QT += core gui
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greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
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TARGET = astrotime
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CONFIG += c++11
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# The following define makes your compiler emit warnings if you use

‎Astime.pro.user‎

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@@ -1,6 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE QtCreatorProject>
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<!-- Written by QtCreator 4.11.1, 2020-03-10T19:32:33. -->
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<!-- Written by QtCreator 4.11.1, 2020-03-16T02:43:17. -->
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<qtcreator>
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<data>
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<variable>EnvironmentId</variable>

‎astm.cpp‎

Lines changed: 40 additions & 3 deletions
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@@ -2,7 +2,8 @@
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#include <ctime>
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#include <math.h>
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5-
double JD(int y, int m, int d, int h, int mi, double s)
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// year month day hour minute second
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double JD(int y, int m, int d, int h, int mi, float s)
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{
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double jd, dd ;
@@ -15,7 +16,9 @@ double JD(int y, int m, int d, int h, int mi, double s)
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}
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double d_d(int y0, int m0, int d0, int h0, int mi0, float s0, int y, int m, int d, int h, int mi, double s)
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// year 0 month 0 day 0 hour 0 minute 0 sec 0 year month day hour minute second
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double d_d(int y0, int m0, int d0, int h0, int mi0, float s0, int y, int m, int d, int h, int mi, float s)
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{
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struct std::tm a = { s0, mi0, h0, d0, m0 - 1, y0 - 1900 } ;
@@ -32,7 +35,7 @@ double d_d(int y0, int m0, int d0, int h0, int mi0, float s0, int y, int m, int
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}
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double GMST(int y, int m, int d, int h, int mi, double s)
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double GMST(int y, int m, int d, int h, int mi, float s)
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{
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double D, T, gmst ;
@@ -51,3 +54,37 @@ double GMST(int y, int m, int d, int h, int mi, double s)
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}
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double UTC2TAI(int y, int m, int d, int h, int mi, double s)
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{
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int n = 2020 - 1972 + 1 ; // limit array
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double TAI ;
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int leap[n][2] = { {1,1}, {0,1}, {0,1}, {0,1}, {0,1}, {0,1}, {0,1}, {0,1}, {0,0}, {1,0},
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{1,0}, {1,0}, {0,0}, {1,0}, {0,0}, {0,1}, {0,0}, {0,1}, {0,1}, {0,0},
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{1,0}, {1,0}, {1,0}, {0,1}, {0,0}, {1,0}, {0,1}, {0,0}, {0,0}, {0,0},
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{0,0}, {0,0}, {0,0}, {0,1}, {0,0}, {0,0}, {0,1}, {0,0}, {0,0}, {0,0},
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{1,0}, {0,0}, {0,0}, {1,0}, {0,1}, {0,0}, {0,0}, {0,0}, {0,0} } ; // leap seconds each year since 1972.
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// Yes, I am masochist
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int l = 10 ; // leap seconds
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for (int i = 0; i < (y - 1972); i++)
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{
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if (i == n)
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break ;
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l += leap[i][0] + leap[i][1] ;
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}
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if ( ( (y - 1972) < n ) and (m > 6) )
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l += leap[y - 1972][0] ;
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TAI = h + double(mi) * 0.01666666666666666 + (s + double(l)) * 2.777777777777777777e-4 ;
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return TAI ;
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}

‎astm.h‎

Lines changed: 6 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -1,15 +1,12 @@
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#ifndef ASTM_H
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#define ASTM_H
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double JD(int, int, int, int, int, double) ; // Julian day for gregorian callendar. Fuck people who don't use it
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double d_d(int, int, int, int, int, float, int, int, int, int, int, double) ; // difference between 2 dates (initial: year, month,
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// day, hour, minute, second
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// final: year, month etc.)
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// Also works backwards i.e. first year 2000 final year 1840
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double GMST(int, int, int, int, int, double) ; // Greenwich medium siderial time. Input current year, month,
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// day, hour, minute, second
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double JD(int, int, int, int, int, float) ;
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double d_d(int, int, int, int, int, float, int, int, int, int, int, float) ;
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double GMST(int, int, int, int, int, float) ;
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double UTC2TAI(int, int, int, int, int, double) ;
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#endif /* ASTM_H */

‎mainwindow.cpp‎

Lines changed: 34 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -37,8 +37,14 @@ MainWindow::~MainWindow()
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void MainWindow::changed_time()
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{
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int UT_h, UT_m, gm_h, gm_m, LST_h, LST_m ;
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double UT_s, seconds, jd, gmst, gm_s, LST, LST_s ;
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int UT_h, UT_m, gm_h, gm_m ;
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double UT_s, seconds, jd, gmst, gm_s ;
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int LST_h, LST_m ;
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double LST, LST_s ;
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int TAI_h, TAI_m ;
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double TAI, TAI_s ;
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int GPS_h, GPS_m ;
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double GPS, GPS_s ;
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UT = hour - tz ;
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@@ -119,6 +125,32 @@ void MainWindow::changed_time()
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ui -> lst_m -> setText(QString::number(LST_m)) ;
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ui -> lst_s -> setText(QString::number(LST_s, 'f', 3)) ;
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TAI = UTC2TAI(year_2, month_2, day_2, UT_h, UT_m, UT_s) ;
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TAI_h = int(TAI) ;
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TAI_m = int( (TAI - TAI_h) * 60) ;
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TAI_s = (TAI - TAI_h) * 3600 - TAI_m * 60 ;
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ui -> tai_h -> setText(QString::number(TAI_h)) ;
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ui -> tai_m -> setText(QString::number(TAI_m)) ;
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ui -> tai_s -> setText(QString::number(TAI_s, 'f', 3)) ;
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GPS = TAI - 5.27777777777777e-3 ;
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if (GPS < 0)
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GPS += 24 ;
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GPS_h = int(GPS) ;
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GPS_m = int( (GPS - GPS_h) * 60) ;
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GPS_s = (GPS - GPS_h) * 3600 - GPS_m * 60 ;
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ui -> gps_h -> setText(QString::number(GPS_h)) ;
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ui -> gps_m -> setText(QString::number(GPS_m)) ;
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ui -> gps_s -> setText(QString::number(GPS_s, 'f', 3)) ;
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}
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void MainWindow::on_time_userTimeChanged(const QTime &time)

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