public function testToParallax()
{
$stars = ['Proxima Centauri' => [Angle::mas(768.13), 1.30186, 0.01], 'Luhman 16' => [Angle::mas(500.51), 1.998, 0.01], 'Sirius' => [Angle::mas(379.21), 2.637, 0.01], 'WISE 0855-0710' => [Angle::mas(449), 2.23, 1]];
foreach ($stars as $star => $data) {
$parallax = $data[0];
$parsecs = $data[1];
$accuracy = $data[2];
$dist = Distance::pc($parsecs);
$this->assertEquals($parallax->mas, $dist->parallax->mas, $star, $accuracy);
}
}
/**
* Get the destination for a given initial bearing and distance along a great circle route
*
* @param Angle $bearing Initial bearing
* @param Distance $distance Distance to travel along the route
* @param ReferenceEllipsoid $ellipsoid If left blank, a default value of 6371009.0 metres will
* be used for the Earth Mean Radius for the calculation;
* If a reference ellipsoid is specified, the Authalic Radius for
* that ellipsoid will be used.
* @return LatLong The endpoint Lat/Long for a journey from this Lat/Long starting on a bearing
* of $bearing and travelling for $distance along a great circle route
* @throws Exception
*/
public function getDestination(Angle $bearing, Distance $distance, ReferenceEllipsoid $ellipsoid = null)
{
if (!is_null($ellipsoid)) {
$earthMeanRadius = $ellipsoid->getAuthalicRadius();
} else {
$earthMeanRadius = 6371009.0;
// metres
}
$destinationLatitude = asin(sin($this->latitude->getValue(Angle::RADIANS)) * cos($distance->getValue() / $earthMeanRadius) + cos($this->latitude->getValue(Angle::RADIANS)) * sin($distance->getValue() / $earthMeanRadius) * cos($bearing->getValue(Angle::RADIANS)));
$destinationLongitude = $this->longitude->getValue(Angle::RADIANS) + atan2(sin($bearing->getValue(Angle::RADIANS)) * sin($distance->getValue() / $earthMeanRadius) * cos($this->latitude->getValue(Angle::RADIANS)), cos($distance->getValue() / $earthMeanRadius) - sin($this->latitude->getValue(Angle::RADIANS)) * sin($destinationLatitude));
return new LatLong(new LatLong\CoordinateValues(self::cleanLatitude($destinationLatitude), self::cleanLongitude($destinationLongitude), Angle::RADIANS));
}
class Angle implements animal,monkey,wisdom,bird{
public function eat(){
echo '吃';
}
public function run(){
echo '走';
}
public function cry(){
echo '哭';
}
public function think(){
echo '思考';
}
public function fly(){
echo '张开翅膀保护你!<br />';
}
}
$angle1 = new Angle();
$angle1->fly();
?>
/**
* Returns a new angle with the negation of this instance.
*
* @return static
*/
public function neg()
{
return Angle::mas($this->mas * -1);
}
public function testToDMS()
{
$angleObject = new Angle(2, Angle::RADIANS);
$angleValue = $angleObject->toDMS(2);
$this->assertEquals("114°35'29.61\"", $angleValue);
}
/*
根据接口，造一个天使
*/
class Angle implements bird{
public function eat(){
echo '吃空气';
}
public function fly(){
echo '张开翅膀保护你!<br />';
}
}
$angle1 = new Angle();
$angle1->eat(); //吃
$angle1->fly(); //飞
interface People extends monkey{
public function UsePhone(); //使用手机
}
//新的人类出现了
class Extraterrestrial implements People{
public function UsePhone(){
echo '玩微信!<br />';
/**
* Returns a new <code>Angle</code> instance.
*
* @param float $radians
* @return Angle
*/
public static function create($radians)
{
$angle = new Angle();
$angle->set($radians);
return $angle;
}
/**
* Converts this instance to an angle representing the number of
* revolutions of a duration of time within a specified time interval.
*
* @param Time $interval
*
* @return Angle
*/
public function toAngle(Time $interval = null)
{
return Angle::time($this, $interval);
}
