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adding precision parameter on Point::getDistanceWith

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This commit is contained in:
Benjamin Delespierre 2015-10-15 16:16:50 +02:00
parent 81b8ed27b9
commit 18dd78bafe
1 changed files with 3 additions and 3 deletions
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6
src/KMeans/Point.php
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@ -49,7 +49,7 @@ class Point implements ArrayAccess
);
}
public function getDistanceWith(self $point)
public function getDistanceWith(self $point, $precise = true)
{
if ($point->space !== $this->space)
throw new LogicException("can only calculate distances from points in the same space");
@ -60,13 +60,13 @@ class Point implements ArrayAccess
$distance += $difference * $difference;
}
return $distance;
return $precise ? sqrt($distance) : $distance;
}
public function getClosest($points)
{
foreach($points as $point) {
$distance = $this->getDistanceWith($point);
$distance = $this->getDistanceWith($point, false);
if (!isset($minDistance)) {
$minDistance = $distance;