1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
/*
* L.Circle is a circle overlay (with a certain radius in meters).
*/
L.Circle = L.Path.extend({
initialize: function(latlng, radius, options) {
L.Path.prototype.initialize.call(this, options);
this._latlng = latlng;
this._mRadius = radius;
},
options: {
fill: true
},
setLatLng: function(latlng) {
this._latlng = latlng;
this._redraw();
return this;
},
setRadius: function(radius) {
this._mRadius = radius;
this._redraw();
return this;
},
projectLatlngs: function() {
var equatorLength = 40075017,
scale = this._map.options.scale(this._map._zoom);
this._point = this._map.latLngToLayerPoint(this._latlng);
this._radius = (this._mRadius / equatorLength) * scale;
},
getPathString: function() {
var p = this._point,
r = this._radius;
if (L.Path.SVG) {
return "M" + p.x + "," + (p.y - r) +
"A" + r + "," + r + ",0,1,1," +
(p.x - 0.1) + "," + (p.y - r) + " z";
} else {
p._round();
r = Math.round(r);
return "AL " + p.x + "," + p.y + " " + r + "," + r + " 0," + (65535 * 360);
}
}
});
|
