/**
* @covers Marando\AstroCoord\Cartesian::add
*/
public function testAdd()
{
// Frame & epoch
$frame = Frame::ICRF();
$epoch = AstroDate::parse('2015-Mar-20 00:00:00')->toEpoch();
// Position / velocity
$x = Distance::au(+1.18);
$y = Distance::au(-3.65);
$z = Distance::au(-2.12);
$vx = Velocity::aud(2.05);
$vy = Velocity::aud(2.82);
$vz = Velocity::aud(1.14);
$a = new Cartesian($frame, $epoch, $x, $y, $z, $vx, $vy, $vz);
$x = Distance::au(+9.32);
$y = Distance::au(-5.25);
$z = Distance::au(-6.89);
$vx = Velocity::aud(5.33);
$vy = Velocity::aud(2.09);
$vz = Velocity::aud(0.6899999999999999);
$b = new Cartesian($frame, $epoch, $x, $y, $z, $vx, $vy, $vz);
$c = $a->add($b);
$this->assertEquals(10.5, $c->x->au);
$this->assertEquals(-8.9, $c->y->au);
$this->assertEquals(-9.01, $c->z->au);
$this->assertEquals(7.38, $c->vx->aud);
$this->assertEquals(4.91, $c->vy->aud);
$this->assertEquals(1.83, $c->vz->aud);
// // //
// Position / velocity
$x = Distance::au(+1.18);
$y = Distance::au(-3.65);
$z = Distance::au(-2.12);
$a = new Cartesian($frame, $epoch, $x, $y, $z);
$x = Distance::au(+9.32);
$y = Distance::au(-5.25);
$z = Distance::au(-6.89);
$b = new Cartesian($frame, $epoch, $x, $y, $z);
$c = $a->add($b);
$this->assertEquals(10.5, $c->x->au);
$this->assertEquals(-8.9, $c->y->au);
$this->assertEquals(-9.01, $c->z->au);
$s = (string) $c;
}
