依赖文件

node_modules/cordova-plugin-googlemaps/www/poly.js

@@ -0,0 +1,106 @@
+var LatLngBounds = require('./LatLngBounds'),
+  BaseArrayClass = require('./BaseArrayClass');
+
+function containsLocation(latLng, path) {
+  if ('lat' in latLng === false ||
+    'lng' in latLng === false) {
+    return false;
+  }
+  if (path instanceof BaseArrayClass) {
+    path = path.getArray();
+  }
+  var points = JSON.parse(JSON.stringify(path));
+
+  var first = points[0],
+    last = points[points.length - 1];
+  if (first.lat !== last.lat || first.lng !== last.lng) {
+    points.push({
+      lat: first.lat,
+      lng: first.lng
+    });
+  }
+  var point = {
+    lat: latLng.lat,
+    lng: latLng.lng
+  };
+
+  var wn = 0,
+    bounds = new LatLngBounds(points),
+    sw = bounds.southwest,
+    ne = bounds.northeast,
+    offsetLng360 = sw.lng <= 0 && ne.lng >= 0 && sw.lng < ne.lng ? 360 : 0;
+
+  sw.lng += offsetLng360;
+  point.lng += offsetLng360;
+
+  points = points.map(function(vertex) {
+    vertex.lng += +offsetLng360;
+    return vertex;
+  });
+
+  var vt, a, b;
+
+  for (var i = 0; i < points.length - 1; i++) {
+    a = points[i];
+    b = points[i + 1];
+
+    if ((a.lat <= point.lat) && (b.lat > point.lat)) {
+      vt = (point.lat - a.lat) / (b.lat - a.lat);
+      if (point.lng < (a.lng + (vt * (b.lng - a.lng)))) {
+        wn++;
+      }
+    } else if ((a.lat > point.lat) && (b.lat <= point.lat)) {
+      vt = (point.lat - a.lat) / (b.lat - a.lat);
+      if (point.lng < (a.lng + (vt * (b.lng - a.lng)))) {
+        wn--;
+      }
+    }
+  }
+
+  return (wn !== 0);
+}
+
+function isLocationOnEdge(latLng, path) {
+  if ('lat' in latLng === false ||
+    'lng' in latLng === false) {
+    return false;
+  }
+
+  var Sx, Sy;
+  var p0, p1;
+  var point = {'lat': latLng.lat, 'lng': latLng.lng};
+
+  if (path instanceof BaseArrayClass) {
+    path = path.getArray();
+  }
+  var points = JSON.parse(JSON.stringify(path));
+
+  var bounds = new LatLngBounds(points),
+    sw = bounds.southwest,
+    ne = bounds.northeast,
+    offsetLng360 = sw.lng <= 0 && ne.lng >= 0 && sw.lng < ne.lng ? 360 : 0;
+
+  point.lng += offsetLng360;
+
+  points = points.map(function(vertex) {
+    vertex.lng += offsetLng360;
+    return vertex;
+  });
+
+  p0 = points[0];
+  for (var i = 1; i < points.length; i++) {
+    p1 = points[i];
+    Sx = (point.lng - p0.lng) / (p1.lng - p0.lng);
+    Sy = (point.lat - p0.lat) / (p1.lat - p0.lat);
+    if (Math.abs(Sx - Sy) < 0.05 && Sx < 1 && Sx > 0) {
+      return true;
+    }
+    p0 = p1;
+  }
+  return false;
+}
+
+module.exports = {
+  containsLocation: containsLocation,
+  isLocationOnEdge: isLocationOnEdge
+};