Examples with CalendarAstronomer android.icu.impl.CalendarAstronomer used on opensource projects

Example 1 with CalendarAstronomer

use of android.icu.impl.CalendarAstronomer in project android_frameworks_base by ResurrectionRemix.

the class TwilightService method calculateTwilightState.

/**
     * Calculates the twilight state for a specific location and time.
     *
     * @param location the location to use
     * @param timeMillis the reference time to use
     * @return the calculated {@link TwilightState}, or {@code null} if location is {@code null}
     */
private static TwilightState calculateTwilightState(Location location, long timeMillis) {
    if (location == null) {
        return null;
    }
    final CalendarAstronomer ca = new CalendarAstronomer(location.getLongitude(), location.getLatitude());
    final Calendar noon = Calendar.getInstance();
    noon.setTimeInMillis(timeMillis);
    noon.set(Calendar.HOUR_OF_DAY, 12);
    noon.set(Calendar.MINUTE, 0);
    noon.set(Calendar.SECOND, 0);
    noon.set(Calendar.MILLISECOND, 0);
    ca.setTime(noon.getTimeInMillis());
    long sunriseTimeMillis = ca.getSunRiseSet(true);
    long sunsetTimeMillis = ca.getSunRiseSet(false);
    if (sunsetTimeMillis < timeMillis) {
        noon.add(Calendar.DATE, 1);
        ca.setTime(noon.getTimeInMillis());
        sunriseTimeMillis = ca.getSunRiseSet(true);
    } else if (sunriseTimeMillis > timeMillis) {
        noon.add(Calendar.DATE, -1);
        ca.setTime(noon.getTimeInMillis());
        sunsetTimeMillis = ca.getSunRiseSet(false);
    }
    return new TwilightState(sunriseTimeMillis, sunsetTimeMillis);
}

Example 2 with CalendarAstronomer

use of android.icu.impl.CalendarAstronomer in project platform_frameworks_base by android.

the class TwilightService method calculateTwilightState.

/**
     * Calculates the twilight state for a specific location and time.
     *
     * @param location the location to use
     * @param timeMillis the reference time to use
     * @return the calculated {@link TwilightState}, or {@code null} if location is {@code null}
     */
private static TwilightState calculateTwilightState(Location location, long timeMillis) {
    if (location == null) {
        return null;
    }
    final CalendarAstronomer ca = new CalendarAstronomer(location.getLongitude(), location.getLatitude());
    final Calendar noon = Calendar.getInstance();
    noon.setTimeInMillis(timeMillis);
    noon.set(Calendar.HOUR_OF_DAY, 12);
    noon.set(Calendar.MINUTE, 0);
    noon.set(Calendar.SECOND, 0);
    noon.set(Calendar.MILLISECOND, 0);
    ca.setTime(noon.getTimeInMillis());
    long sunriseTimeMillis = ca.getSunRiseSet(true);
    long sunsetTimeMillis = ca.getSunRiseSet(false);
    if (sunsetTimeMillis < timeMillis) {
        noon.add(Calendar.DATE, 1);
        ca.setTime(noon.getTimeInMillis());
        sunriseTimeMillis = ca.getSunRiseSet(true);
    } else if (sunriseTimeMillis > timeMillis) {
        noon.add(Calendar.DATE, -1);
        ca.setTime(noon.getTimeInMillis());
        sunsetTimeMillis = ca.getSunRiseSet(false);
    }
    return new TwilightState(sunriseTimeMillis, sunsetTimeMillis);
}

Example 3 with CalendarAstronomer

use of android.icu.impl.CalendarAstronomer in project android_frameworks_base by DirtyUnicorns.

the class TwilightService method calculateTwilightState.

/**
     * Calculates the twilight state for a specific location and time.
     *
     * @param location the location to use
     * @param timeMillis the reference time to use
     * @return the calculated {@link TwilightState}, or {@code null} if location is {@code null}
     */
private static TwilightState calculateTwilightState(Location location, long timeMillis) {
    if (location == null) {
        return null;
    }
    final CalendarAstronomer ca = new CalendarAstronomer(location.getLongitude(), location.getLatitude());
    final Calendar noon = Calendar.getInstance();
    noon.setTimeInMillis(timeMillis);
    noon.set(Calendar.HOUR_OF_DAY, 12);
    noon.set(Calendar.MINUTE, 0);
    noon.set(Calendar.SECOND, 0);
    noon.set(Calendar.MILLISECOND, 0);
    ca.setTime(noon.getTimeInMillis());
    long sunriseTimeMillis = ca.getSunRiseSet(true);
    long sunsetTimeMillis = ca.getSunRiseSet(false);
    if (sunsetTimeMillis < timeMillis) {
        noon.add(Calendar.DATE, 1);
        ca.setTime(noon.getTimeInMillis());
        sunriseTimeMillis = ca.getSunRiseSet(true);
    } else if (sunriseTimeMillis > timeMillis) {
        noon.add(Calendar.DATE, -1);
        ca.setTime(noon.getTimeInMillis());
        sunsetTimeMillis = ca.getSunRiseSet(false);
    }
    return new TwilightState(sunriseTimeMillis, sunsetTimeMillis);
}

Example 4 with CalendarAstronomer

use of android.icu.impl.CalendarAstronomer in project j2objc by google.

the class AstroTest method TestCoverage.

@Test
public void TestCoverage() {
    GregorianCalendar cal = new GregorianCalendar(1958, Calendar.AUGUST, 15);
    Date then = cal.getTime();
    CalendarAstronomer myastro = new CalendarAstronomer(then);
    // Latitude:  34 degrees 05' North
    // Longitude:  118 degrees 22' West
    double laLat = 34 + 5d / 60, laLong = 360 - (118 + 22d / 60);
    CalendarAstronomer myastro2 = new CalendarAstronomer(laLong, laLat);
    double eclLat = laLat * Math.PI / 360;
    double eclLong = laLong * Math.PI / 360;
    Ecliptic ecl = new Ecliptic(eclLat, eclLong);
    logln("ecliptic: " + ecl);
    CalendarAstronomer myastro3 = new CalendarAstronomer();
    myastro3.setJulianDay((4713 + 2000) * 365.25);
    CalendarAstronomer[] astronomers = { // check cache
    myastro, // check cache
    myastro2, // check cache
    myastro3, // check cache
    myastro2 };
    for (int i = 0; i < astronomers.length; ++i) {
        CalendarAstronomer astro = astronomers[i];
        logln("astro: " + astro);
        logln("   time: " + astro.getTime());
        logln("   date: " + astro.getDate());
        logln("   cent: " + astro.getJulianCentury());
        logln("   gw sidereal: " + astro.getGreenwichSidereal());
        logln("   loc sidereal: " + astro.getLocalSidereal());
        logln("   equ ecl: " + astro.eclipticToEquatorial(ecl));
        logln("   equ long: " + astro.eclipticToEquatorial(eclLong));
        logln("   horiz: " + astro.eclipticToHorizon(eclLong));
        logln("   sunrise: " + new Date(astro.getSunRiseSet(true)));
        logln("   sunset: " + new Date(astro.getSunRiseSet(false)));
        logln("   moon phase: " + astro.getMoonPhase());
        logln("   moonrise: " + new Date(astro.getMoonRiseSet(true)));
        logln("   moonset: " + new Date(astro.getMoonRiseSet(false)));
        logln("   prev summer solstice: " + new Date(astro.getSunTime(CalendarAstronomer.SUMMER_SOLSTICE, false)));
        logln("   next summer solstice: " + new Date(astro.getSunTime(CalendarAstronomer.SUMMER_SOLSTICE, true)));
        logln("   prev full moon: " + new Date(astro.getMoonTime(CalendarAstronomer.FULL_MOON, false)));
        logln("   next full moon: " + new Date(astro.getMoonTime(CalendarAstronomer.FULL_MOON, true)));
    }
}

Example 5 with CalendarAstronomer

use of android.icu.impl.CalendarAstronomer in project j2objc by google.

the class AstroTest method TestSolarLongitude.

@Test
public void TestSolarLongitude() {
    GregorianCalendar gc = new GregorianCalendar(new SimpleTimeZone(0, "UTC"));
    CalendarAstronomer astro = new CalendarAstronomer();
    // year, month, day, hour, minute, longitude (radians), ascension(radians), declination(radians)
    final double[][] tests = { { 1980, 7, 27, 00, 00, 2.166442986535465, 2.2070499713207730, 0.3355704075759270 }, { 1988, 7, 27, 00, 00, 2.167484927693959, 2.2081183335606176, 0.3353093444275315 } };
    logln("");
    for (int i = 0; i < tests.length; i++) {
        gc.clear();
        gc.set((int) tests[i][0], (int) tests[i][1] - 1, (int) tests[i][2], (int) tests[i][3], (int) tests[i][4]);
        astro.setDate(gc.getTime());
        double longitude = astro.getSunLongitude();
        if (longitude != tests[i][5]) {
            if ((float) longitude == (float) tests[i][5]) {
                logln("longitude(" + longitude + ") !=  tests[i][5](" + tests[i][5] + ") in double for test " + i);
            } else {
                errln("FAIL: longitude(" + longitude + ") !=  tests[i][5](" + tests[i][5] + ") for test " + i);
            }
        }
        Equatorial result = astro.getSunPosition();
        if (result.ascension != tests[i][6]) {
            if ((float) result.ascension == (float) tests[i][6]) {
                logln("result.ascension(" + result.ascension + ") !=  tests[i][6](" + tests[i][6] + ") in double for test " + i);
            } else {
                errln("FAIL: result.ascension(" + result.ascension + ") !=  tests[i][6](" + tests[i][6] + ") for test " + i);
            }
        }
        if (result.declination != tests[i][7]) {
            if ((float) result.declination == (float) tests[i][7]) {
                logln("result.declination(" + result.declination + ") !=  tests[i][7](" + tests[i][7] + ") in double for test " + i);
            } else {
                errln("FAIL: result.declination(" + result.declination + ") !=  tests[i][7](" + tests[i][7] + ") for test " + i);
            }
        }
    }
}