Created
April 18, 2013 19:11
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Single Tile WMS layer in Leaflet
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| L.ImageOverlay.WMS = L.ImageOverlay.extend({ | |
| defaultWmsParams: { | |
| service: 'WMS', | |
| request: 'GetMap', | |
| version: '1.1.1', | |
| layers: '', | |
| styles: '', | |
| format: 'image/jpeg', | |
| transparent: false, | |
| tiled: false | |
| }, | |
| initialize: function (url, options) { | |
| this._baseUrl = url; | |
| var wmsParams = L.Util.extend({}, this.defaultWmsParams); | |
| if (options.detectRetina && L.Browser.retina) { | |
| wmsParams.width = wmsParams.height = this.options.tileSize * 2; | |
| } else { | |
| wmsParams.width = wmsParams.height = this.options.tileSize; | |
| } | |
| for (var i in options) { | |
| // all keys that are not ImageOverlay options go to WMS params | |
| if (!this.options.hasOwnProperty(i)) { | |
| wmsParams[i] = options[i]; | |
| } | |
| } | |
| this.wmsParams = wmsParams; | |
| L.Util.setOptions(this, options); | |
| }, | |
| onAdd: function (map) { | |
| this._bounds = map.getBounds(); | |
| this._map = map; | |
| var projectionKey = parseFloat(this.wmsParams.version) >= 1.3 ? 'crs' : 'srs'; | |
| this.wmsParams[projectionKey] = map.options.crs.code; | |
| map.on("moveend", this._reset, this); | |
| L.ImageOverlay.prototype.onAdd.call(this, map); | |
| }, | |
| _updateUrl: function () { | |
| var map = this._map, | |
| bounds = this._bounds, | |
| zoom = map.getZoom(), | |
| crs = map.options.crs, | |
| topLeft = map.latLngToLayerPoint(bounds.getNorthWest()), | |
| mapSize = map.latLngToLayerPoint(bounds.getSouthEast()).subtract(topLeft), | |
| nw = crs.project(bounds.getNorthWest()), | |
| se = crs.project(bounds.getSouthEast()), | |
| bbox = [nw.x, se.y, se.x, nw.y].join(','), | |
| urlParams = { width: mapSize.x, height: mapSize.y, bbox: bbox }, | |
| url = this._baseUrl + L.Util.getParamString(L.Util.extend({}, this.wmsParams, urlParams)); | |
| this._url = url; | |
| }, | |
| _updateImagePosition: function () { | |
| // The original reset function really just sets the position and size, so rename it for clarity. | |
| L.ImageOverlay.prototype._reset.call(this); | |
| }, | |
| _reset: function () { | |
| this._bounds = this._map.getBounds(); | |
| this._updateUrl(); | |
| L.Util.extend(this._image, { | |
| src: this._url | |
| }); | |
| }, | |
| _onImageLoad: function () { | |
| this.fire('load'); | |
| // Only update the image position after the image has loaded. | |
| // This the old image from visibly shifting before the new image loads. | |
| this._updateImagePosition(); | |
| } | |
| }); | |
| L.imageOverlay.wms = function (url, options) { | |
| return new L.ImageOverlay.WMS(url, options); | |
| }; |
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Please can you help me to upgrade this script? I can't fix zIndex ignore problem when I create such object, it showes on top of map. All other Layers there are under it.