/**
* Get the [B->D] diagonal as a Segment with a positive direction(s)
*
* @return Segment
* @throws \InvalidArgumentException caught on Segment creation
*/
public function getSecondDiagonal()
{
$b = 'b';
$d = 'd';
$directions = Maths::getDirectionByPoints($this->getPointB(), $this->getPointD());
if ($directions[0] == -1) {
$b = 'd';
$d = 'b';
}
try {
return $this->getSegment($b, $d);
} catch (\InvalidArgumentException $e) {
throw $e;
}
}
/**
* Rearrange a segment to have [A->B] in requested direction
*
* @param int $direction
* @return $this
*/
public function rearrange($direction = Maths::DIRECTION_POSITIVE)
{
$a = $this->getPointA();
$b = $this->getPointB();
$directions = Maths::getDirectionByPoints($a, $b);
if ($directions[0] != $direction) {
$this->setPointA($b);
$this->setPointB($a);
}
return $this;
}
echo "\n\n";
echo '$point2d->name = "D";' . "\n";
echo 'var_export($point2d);' . "\n";
$point2d->name = 'D';
var_export($point2d);
echo "\n\n";
$point_d1 = new Maths\Point2D(2, 2);
$point_d2 = new Maths\Point2D(3, 4);
$point_d3 = new Maths\Point2D(0, 1);
echo '$point_d1 = new Maths\\Point2D(2,2);' . "\n";
echo '$point_d2 = new Maths\\Point2D(3,4);' . "\n";
echo '$point_d3 = new Maths\\Point2D(0,1);' . "\n";
echo 'echo \\Maths\\Maths::getDirectionByPoints($point_d1, $point_d2))' . "\n";
echo var_export(\Maths\Maths::getDirectionByPoints($point_d1, $point_d2), 1) . "\n";
echo 'echo \\Maths\\Maths::getDirectionByPoints($point_d1, $point_d3))' . "\n";
echo var_export(\Maths\Maths::getDirectionByPoints($point_d1, $point_d3), 1) . "\n";
?>
</pre>
<h4>Maths\Point3D</h4>
<pre class="code" data-language="php">
<?php
$point3d = new Maths\Point3D(2, 4, 8);
echo '$point3d = new Maths\\Point3D(2,4,8);' . "\n";
echo $point3d . "\n";
echo 'echo $point3d->is1D()' . "\n";
echo var_export($point3d->is1D(), 1) . "\n";
echo 'echo $point3d->is2D()' . "\n";
echo var_export($point3d->is2D(), 1) . "\n";
echo 'echo $point3d->is3D()' . "\n";
/**
* Get vector's direction
*
* @return array
*/
public function getDirection()
{
return Maths::getDirectionByPoints($this->getPointA(), $this->getPointB());
}