依赖文件

2025-03-20 17:35:53 +08:00
parent 634fe57349
commit 021ffc6052
1134 changed files with 137518 additions and 132 deletions
@@ -0,0 +1,66 @@
+var utils = require('cordova/utils'),
+  LatLngBounds = require('./LatLngBounds');
+
+/*****************************************************************************
+ * VisibleRegion Class
+ *****************************************************************************/
+var VisibleRegion = function(southwest, northeast, farLeft, farRight, nearLeft, nearRight) {
+  Object.defineProperty(this, 'type', {
+    value: 'VisibleRegion',
+    writable: false
+  });
+  this.southwest = southwest;
+  this.northeast = northeast;
+  this.farLeft = farLeft;
+  this.farRight = farRight;
+  this.nearLeft = nearLeft;
+  this.nearRight = nearRight;
+};
+
+utils.extend(VisibleRegion, LatLngBounds);
+
+delete VisibleRegion.prototype.extend;
+delete VisibleRegion.prototype.getCenter;
+
+VisibleRegion.prototype.contains = function(latLng) {
+  if (!latLng || !('lat' in latLng) || !('lng' in latLng)) {
+    return false;
+  }
+  var y = latLng.lat,
+    x = latLng.lng;
+
+  var y90 = y + 90;
+  var south = this.southwest.lat,
+    north = this.northeast.lat,
+    west = this.southwest.lng,
+    east = this.northeast.lng;
+  var south90 = south + 90,
+    north90 = north + 90;
+
+  var containX = false,
+    containY = false;
+
+  if (east >= 0 && west >= east) {
+    if (x <= 0 && x >= -180) {
+      containX = true;
+    } else {
+      containX = (west <= x && x <= east);
+    }
+  } else if (west <= 0 && east <= west) {
+    containX = (west <= x && x <= east);
+    if (x >= 0 && x <= 180) {
+      containX = true;
+    } else {
+      containX = (x <= 0 && x <= west || x <= east && x>= -180);
+    }
+  } else {
+    return LatLngBounds.prototype.contains.call(this, latLng);
+  }
+
+  containY = (south90 <= y90 && y90 <= north90) ||  //#a
+    (south >= 0 && north <= 0 && ((south <= y && y <= 90) || (y >= -90 && y<= north))); // #d
+
+  return containX && containY;
+};
+
+module.exports = VisibleRegion;