/*********************************************************************/
/* */
/* finds next time when starts next yoga */
/* */
/* timezone is not changed */
/* */
/* return value: index of yoga 0..26 */
/* or -1 if failed */
/*********************************************************************/
public static int GetNextStart(GPGregorianTime startDate, out GPGregorianTime nextDate)
{
double phi = 40 / 3.0;
double l1, l2, sunl;
double jday = startDate.getJulianGreenwichTime();
double xj;
double ayanamsa = GPAyanamsa.GetAyanamsa(jday);
GPMoon moon = new GPMoon();
GPGregorianTime d = new GPGregorianTime(startDate);
GPGregorianTime xd = new GPGregorianTime(startDate.getLocationProvider());
double scan_step = 0.5;
int prev_tit = 0;
int new_tit = -1;
moon.MoonCalc(jday);
sunl = GPSun.GetSunLongitude(jday);
l1 = GPMath.putIn360(moon.longitude_deg + sunl - 2 * ayanamsa);
prev_tit = Convert.ToInt32(Math.Floor(l1 * 3 / 40.0));
int counter = 0;
while (counter < 20)
{
xj = jday;
xd.Copy(d);
jday += scan_step;
d.setDayHours(d.getDayHours() + scan_step);
if (d.getDayHours() > 1.0)
{
d.setDayHours(d.getDayHours() - 1.0);
d.NextDay();
}
moon.MoonCalc(jday);
//SunPosition(d, ed, sun, d.shour - 0.5 + d.tzone/24.0);
//l2 = put_in_360(moon.longitude_deg - sun.longitude_deg - 180.0);
sunl = GPSun.GetSunLongitude(jday);
l2 = GPMath.putIn360(moon.longitude_deg + sunl - 2 * ayanamsa);
//Debugger.Log(0, "", "Current position: " + l2/12.0 + " date: " + jday + "\n");
new_tit = Convert.ToInt32(Math.Floor(l2 / phi));
if (prev_tit != new_tit)
{
jday = xj;
d.Copy(xd);
scan_step *= 0.5;
counter++;
continue;
}
else
{
l1 = l2;
}
}
nextDate = d;
// nextDate.shour += startDate.tzone / 24.0;
// nextDate.NormalizeValues();
return(new_tit);
}
protected double calculatePosition()
{
pMoon.MoonCalc(pJulianDate);
pLastSunLongitude = GPSun.GetSunLongitude(pJulianDate);
double l1 = GPMath.putIn360(pMoon.longitude_deg - pLastSunLongitude - opositeLongitude);
return(GPMath.putIn180(l1));
}
/*********************************************************************/
/* */
/* finds previous time when starts next yoga */
/* */
/* timezone is not changed */
/* */
/* return value: index of yoga 0..26 */
/* or -1 if failed */
/*********************************************************************/
public static int GetPrevStart(GPGregorianTime startDate, out GPGregorianTime nextDate)
{
double phi = 12.0;
double l1, l2, sunl;
double jday = startDate.getJulianGreenwichTime();
double xj;
double ayanamsa = GPAyanamsa.GetAyanamsa(jday);
GPMoon moon = new GPMoon();
GPGregorianTime d = new GPGregorianTime(startDate);
GPGregorianTime xd = new GPGregorianTime(startDate.getLocationProvider());
double scan_step = 0.5;
int prev_tit = 0;
int new_tit = -1;
moon.MoonCalc(jday);
sunl = GPSun.GetSunLongitude(jday);
l1 = GPMath.putIn360(moon.longitude_deg + sunl - 2 * ayanamsa);
prev_tit = Convert.ToInt32(Math.Floor(l1 / phi));
int counter = 0;
while (counter < 20)
{
xj = jday;
xd.Copy(d);
jday -= scan_step;
d.setDayHours(d.getDayHours() - scan_step);
if (d.getDayHours() < 0.0)
{
d.setDayHours(d.getDayHours() + 1.0);
d.PreviousDay();
}
moon.MoonCalc(jday);
sunl = GPSun.GetSunLongitude(jday);
l2 = GPMath.putIn360(moon.longitude_deg + sunl - 2 * ayanamsa);
new_tit = Convert.ToInt32(Math.Floor(l2 / phi));
if (prev_tit != new_tit)
{
jday = xj;
d.Copy(xd);
scan_step *= 0.5;
counter++;
continue;
}
else
{
l1 = l2;
}
}
nextDate = d;
// nextDate.shour += startDate.tzone / 24.0;
// nextDate.NormalizeValues();
return(new_tit);
}
public override double calculatePosition()
{
pMoon.MoonCalc(pJulianDate);
//pSun.calculateCoordinates(pStartDate, pStartDate.getLocation(), pStartDate.getDayHours());
// SunPosition(d, ed, sun, d.shour - 0.5 + d.tzone/24.0);
double l1 = GPMath.putIn360(pMoon.longitude_deg - /*pSun.eclipticalLongitude*/
GPSun.GetSunLongitude(pJulianDate) - 180.0);
return(l1 / 12.0);
}
/*********************************************************************/
/* Finds next time when rasi is changed */
/* */
/* startDate - starting date and time, timezone member must be valid */
/* zodiac [out] - found zodiac sign into which is changed */
/* */
/*********************************************************************/
public static GPGregorianTime GetNextSankranti(GPGregorianTime startDate, out int zodiac)
{
GPGregorianTime d;
double step = 1.0;
int count = 0;
double ld, prev;
int prev_rasi, new_rasi;
GPGregorianTime prevday = new GPGregorianTime(startDate.getLocation());
zodiac = 0;
d = new GPGregorianTime(startDate);
double jdate = d.getJulianGreenwichTime();
prev = GPMath.putIn360(GPSun.GetSunLongitude(jdate) - GPAyanamsa.GetAyanamsa(jdate));
prev_rasi = Convert.ToInt32(Math.Floor(prev / 30.0));
while (count < 20)
{
prevday.Copy(d);
d.setDayHours(d.getDayHours() + step);
if (d.getDayHours() > 1.0)
{
d.setDayHours(d.getDayHours() - 1.0);
d.NextDay();
}
jdate = d.getJulianGreenwichTime();
ld = GPMath.putIn360(GPSun.GetSunLongitude(jdate) - GPAyanamsa.GetAyanamsa(jdate));
new_rasi = Convert.ToInt32(Math.Floor(ld / 30.0));
if (prev_rasi != new_rasi)
{
zodiac = new_rasi;
//v uplynulom dni je sankranti
step *= 0.5;
d.Copy(prevday);
count++;
continue;
}
}
return(d);
}
public override double calculatePosition()
{
double prev = GPMath.putIn360(GPSun.GetSunLongitude(pJulianDate) - GPAyanamsa.GetAyanamsa(pJulianDate));
return(prev / 30.0);
}
