make sure points are uniformly distributed

rmrs · Aug 14, 2017 · d9bce12 · d9bce12
1 parent d8f3eab
commit d9bce12
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Showing 2 changed files with 6 additions and 2 deletions.
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "random-location",
-  "version": "1.0.5",
+  "version": "1.0.6",
   "description": "Random coordinates within a circle given a center point and radius",
   "main": "src/index.js",
   "scripts": {

diff --git a/src/index.js b/src/index.js
@@ -57,7 +57,11 @@ Where -90 <= A <= 90 and -180 <= B <= 180.
 radius R is in meters.
 */
 const randomCirclePoint = (centerPoint, radius) => {
-  return randomCircumferencePoint(centerPoint, Math.random() * radius)
+  // http://mathworld.wolfram.com/DiskPointPicking.html
+  return randomCircumferencePoint(
+    centerPoint,
+    Math.sqrt(Math.random()) * radius
+  )
 }
 
 /*