leaflet-geometryutil - npm Package Compare versions

Comparing version 0.10.2 to 0.10.3

package.json

 {
   "name": "leaflet-geometryutil",
-  "version": "0.10.2",
+  "version": "0.10.3",
   "description": "Leaflet utility functions on geometries",
@@ -5,0 +5,0 @@ "keywords": [

README.md

@@ -0,6 +1,7 @@
+<a href="https://www.npmjs.com/package/leaflet-geometryutil"><img alt="npm" src="https://img.shields.io/npm/dt/leaflet-geometryutil"></a>
+<a href="https://www.npmjs.com/package/leaflet-geometryutil"><img alt="npm" src= "https://img.shields.io/npm/v/leaflet-geometryutil?color=red"></a>
+
 Leaflet.GeometryUtil
 ====================
 
-[![Build Status](https://travis-ci.org/makinacorpus/Leaflet.GeometryUtil.png?branch=master)](https://travis-ci.org/makinacorpus/Leaflet.GeometryUtil)
-
 * Tested with stable Leaflet 0.7.0
@@ -50,2 +51,6 @@ * Tested with Leaflet 1.0.0-rc.3
 
+### 0.10.3 ###
+
+* add support for closestOnCircle (#101, thanks to @danyhoron)
+
 ### 0.10.2 ###
@@ -52,0 +57,0 @@

src/leaflet.geometryutil.js

@@ -161,2 +161,34 @@ // Packaging/modules magic dance.
     /**
+    Returns the closest point of a {L.LatLng} on a {L.Circle}
+
+    @tutorial closest
+
+    @param {L.LatLng} latlng - The position to search
+    @param {L.Circle} circle - A Circle defined by a center and a radius
+    @returns {L.LatLng} Closest geographical point on the circle circumference
+    */
+    closestOnCircle: function (circle, latLng) {
+        const center = circle.getLatLng();
+        const circleRadius = circle.getRadius();
+        const radius = typeof circleRadius === 'number' ? circleRadius : circleRadius.radius;
+        const x = latLng.lng;
+        const y = latLng.lat;
+        const cx = center.lng;
+        const cy = center.lat;
+        // dx and dy is the vector from the circle's center to latLng
+        const dx = x - cx;
+        const dy = y - cy;
+
+        // distance between the point and the circle's center
+        const distance = Math.sqrt(dx * dx + dy * dy)
+
+        // Calculate the closest point on the circle by adding the normalized vector to the center
+        const tx = cx + (dx / distance) * radius;
+        const ty = cy + (dy / distance) * radius;
+
+        return new L.LatLng(ty, tx);
+    },
+    
+
+    /**
         Returns the closest latlng on layer.
@@ -297,2 +329,6 @@
             } else {
+                if (layer instanceof L.Circle){
+                    ll = this.closestOnCircle(layer, latlng);
+                    distance = L.GeometryUtil.distance(map, latlng, ll);
+                } else
                 // Single dimension, snap on points, else snap on closest
@@ -342,2 +378,6 @@ if (typeof layer.getLatLng == 'function') {
             } else {
+                if (layer instanceof L.Circle){
+                    ll = this.closestOnCircle(layer, latlng);
+                    distance = L.GeometryUtil.distance(map, latlng, ll);
+                } else
                 // Single dimension, snap on points, else snap on closest
@@ -344,0 +384,0 @@ if (typeof layer.getLatLng == 'function') {

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Improved metrics

Total package byte prevSize

1660927

increased by0.23%

Number of package files

73

increased by1.39%

Lines of code

2586

increased by3.36%

Number of lines in readme file

178

increased by2.89%

Number of medium supply chain risk alerts

18

decreased by-5.26%

No dependency changes