]> git.openstreetmap.org Git - rails.git/blobdiff - vendor/assets/leaflet/leaflet.polyline.js
Merge branch 'master' into messages
[rails.git] / vendor / assets / leaflet / leaflet.polyline.js
index 5f35ed0de23c1d9a68db4e10a8c68a7f0df07fbe..772e7ebc61355e5973f281c47a1fd18ff1d1cb42 100644 (file)
  */
 
 (function () {
-       'use strict';
+    'use strict';
 
-       var defaultOptions = function (options) {
-               if (typeof options === 'number') {
-                       // Legacy
-                       options = { precision: options };
-               } else {
-                       options = options || {};
-               }
+    var defaultOptions = function (options) {
+        if (typeof options === 'number') {
+            // Legacy
+            options = {
+                precision: options
+            };
+        } else {
+            options = options || {};
+        }
 
-               options.precision = options.precision || 5;
-               options.factor = options.factor || Math.pow(10, options.precision);
-               options.dimension = options.dimension || 2;
-               return options;
-       };
+        options.precision = options.precision || 5;
+        options.factor = options.factor || Math.pow(10, options.precision);
+        options.dimension = options.dimension || 2;
+        return options;
+    };
 
-       var PolylineUtil = {
-               encode: function (points, options) {
-                       options = defaultOptions(options);
+    var PolylineUtil = {
+        encode: function (points, options) {
+            options = defaultOptions(options);
 
-                       var flatPoints = [];
-                       for (var i = 0, len = points.length; i < len; ++i) {
-                               var point = points[i];
+            var flatPoints = [];
+            for (var i = 0, len = points.length; i < len; ++i) {
+                var point = points[i];
 
-                               if (options.dimension === 2) {
-                                       flatPoints.push(point.lat || point[0]);
-                                       flatPoints.push(point.lng || point[1]);
-                               } else {
-                                       for (var dim = 0; dim < options.dimension; ++dim) {
-                                               flatPoints.push(point[dim]);
-                                       }
-                               }
-                       }
+                if (options.dimension === 2) {
+                    flatPoints.push(point.lat || point[0]);
+                    flatPoints.push(point.lng || point[1]);
+                } else {
+                    for (var dim = 0; dim < options.dimension; ++dim) {
+                        flatPoints.push(point[dim]);
+                    }
+                }
+            }
+
+            return this.encodeDeltas(flatPoints, options);
+        },
+
+        decode: function (encoded, options) {
+            options = defaultOptions(options);
+
+            var flatPoints = this.decodeDeltas(encoded, options);
+
+            var points = [];
+            for (var i = 0, len = flatPoints.length; i + (options.dimension - 1) < len;) {
+                var point = [];
+
+                for (var dim = 0; dim < options.dimension; ++dim) {
+                    point.push(flatPoints[i++]);
+                }
 
-                       return this.encodeDeltas(flatPoints, options);
-               },
+                points.push(point);
+            }
 
-               decode: function (encoded, options) {
-                       options = defaultOptions(options);
+            return points;
+        },
+
+        encodeDeltas: function (numbers, options) {
+            options = defaultOptions(options);
+
+            var lastNumbers = [];
 
-                       var flatPoints = this.decodeDeltas(encoded, options);
-
-                       var points = [];
-                       for (var i = 0, len = flatPoints.length; i + (options.dimension - 1) < len;) {
-                               var point = [];
-
-                               for (var dim = 0; dim < options.dimension; ++dim) {
-                                       point.push(flatPoints[i++]);
-                               }
-
-                               points.push(point);
-                       }
-
-                       return points;
-               },
-
-               encodeDeltas: function(numbers, options) {
-                       options = defaultOptions(options);
-
-                       var lastNumbers = [];
-
-                       for (var i = 0, len = numbers.length; i < len;) {
-                               for (var d = 0; d < options.dimension; ++d, ++i) {
-                                       var num = numbers[i];
-                                       var delta = num - (lastNumbers[d] || 0);
-                                       lastNumbers[d] = num;
-
-                                       numbers[i] = delta;
-                               }
-                       }
-
-                       return this.encodeFloats(numbers, options);
-               },
-
-               decodeDeltas: function(encoded, options) {
-                       options = defaultOptions(options);
-
-                       var lastNumbers = [];
-
-                       var numbers = this.decodeFloats(encoded, options);
-                       for (var i = 0, len = numbers.length; i < len;) {
-                               for (var d = 0; d < options.dimension; ++d, ++i) {
-                                       numbers[i] = lastNumbers[d] = numbers[i] + (lastNumbers[d] || 0);
-                               }
-                       }
-
-                       return numbers;
-               },
-
-               encodeFloats: function(numbers, options) {
-                       options = defaultOptions(options);
-
-                       for (var i = 0, len = numbers.length; i < len; ++i) {
-                               numbers[i] = Math.round(numbers[i] * options.factor);
-                       }
-
-                       return this.encodeSignedIntegers(numbers);
-               },
-
-               decodeFloats: function(encoded, options) {
-                       options = defaultOptions(options);
-
-                       var numbers = this.decodeSignedIntegers(encoded);
-                       for (var i = 0, len = numbers.length; i < len; ++i) {
-                               numbers[i] /= options.factor;
-                       }
-
-                       return numbers;
-               },
-
-               /* jshint bitwise:false */
-
-               encodeSignedIntegers: function(numbers) {
-                       for (var i = 0, len = numbers.length; i < len; ++i) {
-                               var num = numbers[i];
-                               numbers[i] = (num < 0) ? ~(num << 1) : (num << 1);
-                       }
-
-                       return this.encodeUnsignedIntegers(numbers);
-               },
-
-               decodeSignedIntegers: function(encoded) {
-                       var numbers = this.decodeUnsignedIntegers(encoded);
-
-                       for (var i = 0, len = numbers.length; i < len; ++i) {
-                               var num = numbers[i];
-                               numbers[i] = (num & 1) ? ~(num >> 1) : (num >> 1);
-                       }
-
-                       return numbers;
-               },
-
-               encodeUnsignedIntegers: function(numbers) {
-                       var encoded = '';
-                       for (var i = 0, len = numbers.length; i < len; ++i) {
-                               encoded += this.encodeUnsignedInteger(numbers[i]);
-                       }
-                       return encoded;
-               },
-
-               decodeUnsignedIntegers: function(encoded) {
-                       var numbers = [];
-
-                       var current = 0;
-                       var shift = 0;
-
-                       for (var i = 0, len = encoded.length; i < len; ++i) {
-                               var b = encoded.charCodeAt(i) - 63;
-
-                               current |= (b & 0x1f) << shift;
-
-                               if (b < 0x20) {
-                                       numbers.push(current);
-                                       current = 0;
-                                       shift = 0;
-                               } else {
-                                       shift += 5;
-                               }
-                       }
-
-                       return numbers;
-               },
-
-               encodeSignedInteger: function (num) {
-                       num = (num < 0) ? ~(num << 1) : (num << 1);
-                       return this.encodeUnsignedInteger(num);
-               },
-
-               // This function is very similar to Google's, but I added
-               // some stuff to deal with the double slash issue.
-               encodeUnsignedInteger: function (num) {
-                       var value, encoded = '';
-                       while (num >= 0x20) {
-                               value = (0x20 | (num & 0x1f)) + 63;
-                               encoded += (String.fromCharCode(value));
-                               num >>= 5;
-                       }
-                       value = num + 63;
-                       encoded += (String.fromCharCode(value));
-
-                       return encoded;
-               }
-
-               /* jshint bitwise:true */
-       };
-
-       // Export Node module
-       if (typeof module === 'object' && typeof module.exports === 'object') {
-               module.exports = PolylineUtil;
-       }
-
-       // Inject functionality into Leaflet
-       if (typeof L === 'object') {
-               if (!(L.Polyline.prototype.fromEncoded)) {
-                       L.Polyline.fromEncoded = function (encoded, options) {
-                               return new L.Polyline(PolylineUtil.decode(encoded), options);
-                       };
-               }
-               if (!(L.Polygon.prototype.fromEncoded)) {
-                       L.Polygon.fromEncoded = function (encoded, options) {
-                               return new L.Polygon(PolylineUtil.decode(encoded), options);
-                       };
-               }
-
-               var encodeMixin = {
-                       encodePath: function () {
-                               return PolylineUtil.encode(this.getLatLngs());
-                       }
-               };
-
-               if (!L.Polyline.prototype.encodePath) {
-                       L.Polyline.include(encodeMixin);
-               }
-               if (!L.Polygon.prototype.encodePath) {
-                       L.Polygon.include(encodeMixin);
-               }
-
-               L.PolylineUtil = PolylineUtil;
-       }
+            for (var i = 0, len = numbers.length; i < len;) {
+                for (var d = 0; d < options.dimension; ++d, ++i) {
+                    var num = numbers[i];
+                    var delta = num - (lastNumbers[d] || 0);
+                    lastNumbers[d] = num;
+
+                    numbers[i] = delta;
+                }
+            }
+
+            return this.encodeFloats(numbers, options);
+        },
+
+        decodeDeltas: function (encoded, options) {
+            options = defaultOptions(options);
+
+            var lastNumbers = [];
+
+            var numbers = this.decodeFloats(encoded, options);
+            for (var i = 0, len = numbers.length; i < len;) {
+                for (var d = 0; d < options.dimension; ++d, ++i) {
+                    numbers[i] = Math.round((lastNumbers[d] = numbers[i] + (lastNumbers[d] || 0)) * options.factor) / options.factor;
+                }
+            }
+
+            return numbers;
+        },
+
+        encodeFloats: function (numbers, options) {
+            options = defaultOptions(options);
+
+            for (var i = 0, len = numbers.length; i < len; ++i) {
+                numbers[i] = Math.round(numbers[i] * options.factor);
+            }
+
+            return this.encodeSignedIntegers(numbers);
+        },
+
+        decodeFloats: function (encoded, options) {
+            options = defaultOptions(options);
+
+            var numbers = this.decodeSignedIntegers(encoded);
+            for (var i = 0, len = numbers.length; i < len; ++i) {
+                numbers[i] /= options.factor;
+            }
+
+            return numbers;
+        },
+
+        encodeSignedIntegers: function (numbers) {
+            for (var i = 0, len = numbers.length; i < len; ++i) {
+                var num = numbers[i];
+                numbers[i] = (num < 0) ? ~(num << 1) : (num << 1);
+            }
+
+            return this.encodeUnsignedIntegers(numbers);
+        },
+
+        decodeSignedIntegers: function (encoded) {
+            var numbers = this.decodeUnsignedIntegers(encoded);
+
+            for (var i = 0, len = numbers.length; i < len; ++i) {
+                var num = numbers[i];
+                numbers[i] = (num & 1) ? ~(num >> 1) : (num >> 1);
+            }
+
+            return numbers;
+        },
+
+        encodeUnsignedIntegers: function (numbers) {
+            var encoded = '';
+            for (var i = 0, len = numbers.length; i < len; ++i) {
+                encoded += this.encodeUnsignedInteger(numbers[i]);
+            }
+            return encoded;
+        },
+
+        decodeUnsignedIntegers: function (encoded) {
+            var numbers = [];
+
+            var current = 0;
+            var shift = 0;
+
+            for (var i = 0, len = encoded.length; i < len; ++i) {
+                var b = encoded.charCodeAt(i) - 63;
+
+                current |= (b & 0x1f) << shift;
+
+                if (b < 0x20) {
+                    numbers.push(current);
+                    current = 0;
+                    shift = 0;
+                } else {
+                    shift += 5;
+                }
+            }
+
+            return numbers;
+        },
+
+        encodeSignedInteger: function (num) {
+            num = (num < 0) ? ~(num << 1) : (num << 1);
+            return this.encodeUnsignedInteger(num);
+        },
+
+        // This function is very similar to Google's, but I added
+        // some stuff to deal with the double slash issue.
+        encodeUnsignedInteger: function (num) {
+            var value, encoded = '';
+            while (num >= 0x20) {
+                value = (0x20 | (num & 0x1f)) + 63;
+                encoded += (String.fromCharCode(value));
+                num >>= 5;
+            }
+            value = num + 63;
+            encoded += (String.fromCharCode(value));
+
+            return encoded;
+        }
+    };
+
+    // Export Node module
+    if (typeof module === 'object' && typeof module.exports === 'object') {
+        module.exports = PolylineUtil;
+    }
+
+    // Inject functionality into Leaflet
+    if (typeof L === 'object') {
+        if (!(L.Polyline.prototype.fromEncoded)) {
+            L.Polyline.fromEncoded = function (encoded, options) {
+                return L.polyline(PolylineUtil.decode(encoded), options);
+            };
+        }
+        if (!(L.Polygon.prototype.fromEncoded)) {
+            L.Polygon.fromEncoded = function (encoded, options) {
+                return L.polygon(PolylineUtil.decode(encoded), options);
+            };
+        }
+
+        var encodeMixin = {
+            encodePath: function () {
+                return PolylineUtil.encode(this.getLatLngs());
+            }
+        };
+
+        if (!L.Polyline.prototype.encodePath) {
+            L.Polyline.include(encodeMixin);
+        }
+        if (!L.Polygon.prototype.encodePath) {
+            L.Polygon.include(encodeMixin);
+        }
+
+        L.PolylineUtil = PolylineUtil;
+    }
 })();