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Add distance function to math ns.

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Andrey Antukh 2016-01-30 20:18:51 +02:00
parent c3ddf2ad32
commit 36f1690120
1 changed files with 8 additions and 0 deletions
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8
src/uxbox/util/math.cljs
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@ -67,3 +67,11 @@
"Converts radians to degrees." "Converts radians to degrees."
[^number radiants] [^number radiants]
(math/toDegrees radiants)) (math/toDegrees radiants))
(defn distance
"Calculate the distance between two points."
[[x1 y1] [x2 y2]]
(let [dx (- x1 x2)
dy (- y1 y2)]
(-> (sqrt (+ (pow dx 2) (pow dy 2)))
(precision 2))))