public function getLength(PolygonInterface $polygon)
{
$segments = $this->getFactoriesCollection()->getLineFactory()->createLineSegmentCollection($polygon->getPoints());
return array_sum(array_map(function (LineSegmentInterface $segment) {
return $segment->getLength();
}, $segments->toArray()));
}
/**
*
* (non-PHPdoc)
* @see \samizdam\Geometry\Plane\Polygons\PolygonInspectorInterface::isRegular()
*
* @param PolygonInterface $polygon
*/
public function isRegular(PolygonInterface $polygon)
{
$points = $polygon->getPoints();
$segments = $this->getFactoriesCollection()->getLineFactory()->createLineSegmentCollection($points);
$samleSegment = $segments->current();
foreach ($segments as $segment) {
if ($segment->getLength() !== $samleSegment->getLength()) {
return false;
}
}
$angles = $this->getFactoriesCollection()->getAngleFactory()->createAngleCollection($points);
$sampleAngle = $angles->current();
foreach ($angles as $angle) {
if ($sampleAngle->getSize() !== $angle->getSize()) {
return false;
}
}
return true;
}
