fixed divide by zero error

Author: j05u3

src/SpatialHashTable/SupportedGeometries/Point.php

@@ -100,7 +100,9 @@ public static function dist(Point &$A, Point &$B) {
     }
 
     public static function distToLine(Point &$A, Point &$B, Point &$P) {
-        return abs(self::cross($A, $B, $P))/self::dist($A, $B);
+        $distAB = self::dist($A, $B);
+        if ($distAB == 0) return self::dist($A, $P);
+        return abs(self::cross($A, $B, $P))/$distAB;
     }
 
     public static function distToSegment(Point &$A, Point &$B, Point &$P) {

test.php

@@ -53,6 +53,7 @@
 $b->addElement(new Edge(new Point(1.25, 1.5), new Point( 0.5, 0.75), 200));
 $b->addElement(new Edge(new Point(1.75, 1.75), new Point( 1.75, 1.25), 300));
 $b->addElement(new Point(0.5, 0.5, 400));
+$b->addElement(new Edge(new Point(0.5, 0.5), new Point(0.5, 0.5), 500));
 
 // inverted tricky one
 $b->outputHashTable();