/**
* Get start period.
*
* @return array
*/
public function getStartPeriod()
{
$nakshatra = $this->getData()['panchanga']['nakshatra'];
$N = Nakshatra::getInstance($nakshatra['key']);
$result['graha'] = $N->nakshatraRuler;
$result['total'] = $this->durationTotal * Astro::DURATION_YEAR_GREGORIAN * 86400;
$duration = $this->durationGraha[$result['graha']] * Astro::DURATION_YEAR_GREGORIAN * 86400;
$result['start'] = round($duration * (100 - $nakshatra['left']) / 100);
return $result;
}
/**
* Get Nakshatra. Ending Moment of asterism of the day, that is, the stellar
* mansion in which graha is located for an observer at the center of the Earth.
*
* @param bool $withLimit Time limit
* @param bool $withAbhijit Take into account the Abhijit nakshatra
* @param string $grahaKey Graha key (default: Ch)
* @return array
*/
public function getNakshatra($withLimit = false, $withAbhijit = false, $grahaKey = Graha::KEY_CH)
{
$this->checkData(__FUNCTION__);
$unit = 360 / 27;
if (array_key_exists($grahaKey, Graha::$graha)) {
$lngGraha = $this->getData()['graha'][$grahaKey]['longitude'];
} else {
if (!isset($this->getData()['lagna'][$grahaKey]['longitude'])) {
throw new Exception\InvalidArgumentException("Longitude value for the key '{$grahaKey}' is not defined.");
} else {
$lngGraha = $this->getData()['lagna'][$grahaKey]['longitude'];
}
}
$nakshatraUnits = Math::partsToUnits($lngGraha, $unit);
$nakshatra = [];
$nakshatra['anga'] = Panchanga::ANGA_NAKSHATRA;
if ($withAbhijit) {
if ($nakshatraUnits['units'] == 21 || $nakshatraUnits['units'] == 22) {
$Abhijit = Nakshatra::getInstance(28);
$abhijitStart = Math::dmsToDecimal($Abhijit->nakshatraStart);
$abhijitEnd = Math::dmsToDecimal($Abhijit->nakshatraEnd);
if ($lngGraha < $abhijitStart) {
$nakshatra['key'] = 21;
$N = Nakshatra::getInstance($nakshatra['key']);
$nStart = Math::dmsToDecimal($N->nakshatraStart);
$unit = $abhijitStart - $nStart;
$left = $abhijitStart - $lngGraha;
} elseif ($lngGraha >= $abhijitStart && $lngGraha < $abhijitEnd) {
$nakshatra['key'] = 28;
$unit = $abhijitEnd - $abhijitStart;
$left = $abhijitEnd - $lngGraha;
} else {
$nakshatra['key'] = 22;
$N = Nakshatra::getInstance($nakshatra['key']);
$nEnd = Math::dmsToDecimal($N->nakshatraEnd);
$unit = $nEnd - $abhijitEnd;
$left = $nEnd - $lngGraha;
}
$nakshatra['ratio'] = $unit / Math::dmsToDecimal(Nakshatra::$arc);
} else {
$nakshatra['key'] = $nakshatraUnits['units'];
$nakshatra['ratio'] = 1;
$left = $unit - $nakshatraUnits['parts'];
}
$nakshatra['abhijit'] = true;
} else {
$nakshatra['key'] = $nakshatraUnits['units'];
$nakshatra['ratio'] = 1;
$nakshatra['abhijit'] = false;
$left = $unit - $nakshatraUnits['parts'];
}
$nakshatra['left'] = $left * 100 / $unit;
$nakshatra['name'] = Nakshatra::$nakshatra[$nakshatra['key']];
if ($nakshatra['left'] < 100 && $nakshatra['left'] >= 75) {
$nakshatra['pada'] = 1;
} elseif ($nakshatra['left'] < 75 && $nakshatra['left'] >= 50) {
$nakshatra['pada'] = 2;
} elseif ($nakshatra['left'] < 50 && $nakshatra['left'] >= 25) {
$nakshatra['pada'] = 3;
} else {
$nakshatra['pada'] = 4;
}
if ($withLimit) {
$this->AngaDefiner = clone $this;
$limit = $this->getAngaLimit($nakshatra);
$nakshatra['end'] = $limit;
$this->AngaDefiner = null;
}
return $nakshatra;
}
/**
* Constructor
*
* @param null|array $options Options to set (optional)
*/
public function __construct($options = null)
{
parent::__construct($options);
$nakshatras = Nakshatra::listNakshatra(true);
$this->orderNakshatra = Math::shiftArray($nakshatras, 6, true);
}