58 lines
1.4 KiB
JavaScript
58 lines
1.4 KiB
JavaScript
/*
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* L.Polygon is used to display polygons on a map.
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*/
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L.Polygon = L.Polyline.extend({
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options: {
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fill: true
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},
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initialize: function(latlngs, options) {
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L.Polyline.prototype.initialize.call(this, latlngs, options);
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if (latlngs[0] instanceof Array) {
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this._latlngs = latlngs[0];
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this._holes = latlngs.slice(1);
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}
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},
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projectLatlngs: function() {
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L.Polyline.prototype.projectLatlngs.call(this);
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// project polygon holes points
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// TODO move this logic to Polyline to get rid of duplication
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this._holePoints = [];
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if (!this._holes) return;
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for (var i = 0, len = this._holes.length, hole; i < len; i++) {
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this._holePoints[i] = [];
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for(var j = 0, len2 = this._holes[i].length; j < len2; j++) {
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this._holePoints[i][j] = this._map.latLngToLayerPoint(this._holes[i][j]);
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}
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}
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},
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_clipPoints: function() {
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var points = this._originalPoints,
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newParts = [];
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this._parts = [points].concat(this._holePoints);
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if (this.options.noClip) return;
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for (var i = 0, len = this._parts.length; i < len; i++) {
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var clipped = L.PolyUtil.clipPolygon(this._parts[i], this._map._pathViewport);
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if (!clipped.length) continue;
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newParts.push(clipped);
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}
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this._parts = newParts;
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},
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_getPathPartStr: function(points) {
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var str = L.Polyline.prototype._getPathPartStr.call(this, points);
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return str + (L.Path.SVG ? 'z' : 'x');
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}
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}); |