Newer
Older
/**
* Created by gavorhes on 11/2/2015.
*/
"use strict";
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var LayerBaseVector_1 = require('./LayerBaseVector');
var provide_1 = require('../util/provide');
var custom_ol_1 = require('custom-ol');
var proj = require('../olHelpers/projections');
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
52
var nm = provide_1.default('layers');
var $ = require('jquery');
/**
* The Vector GeoJson Layer
* @augments LayerBaseVector
*/
var LayerBaseVectorGeoJson = (function (_super) {
__extends(LayerBaseVectorGeoJson, _super);
/**
* @param {string|undefined|null} url - resource url, set to '' to make blank layer
* @param {object} options - config
* @param {string} [options.id] - layer id
* @param {string} [options.name=Unnamed Layer] - layer name
* @param {number} [options.opacity=1] - opacity
* @param {boolean} [options.visible=true] - default visible
* @param {number} [options.minZoom=undefined] - min zoom level, 0 - 28
* @param {number} [options.maxZoom=undefined] - max zoom level, 0 - 28
* @param {object} [options.params={}] the get parameters to include to retrieve the layer
* @param {number} [options.zIndex=0] the z index for the layer
* @param {function} [options.loadCallback] function to call on load, context this is the layer object
* @param {boolean} [options.legendCollapse=false] if the legend item should be initially collapsed
* @param {boolean} [options.legendCheckbox=true] if the legend item should have a checkbox for visibility
* @param {boolean} [options.legendContent] additional content to add to the legend
*
* @param {boolean} [options.autoLoad=false] if the layer should auto load if not visible
* @param {object} [options.style=undefined] the layer style, use openlayers default style if not defined
* @param {boolean} [options.onDemand=false] if the layer should be loaded by extent on map move
* @param {number} [options.onDemandDelay=300] delay before the map move callback should be called
*
* @param {object} [options.transform={}] SR transform, set as false for no transform
* @param {string} options.transform.dataProjection=EPSG:4326 the data CRS
* @param {string} options.transform.featureProjection=EPSG:3857 the feature/map CRS
* @param {mapMoveMakeGetParams} [options.mapMoveMakeGetParams=function(lyr, extent, zoomLevel){}] function to create additional map move params
* @param {MapMoveCls} [options.mapMoveObj=mapMove] alternate map move object for use with multi map pages
*/
function LayerBaseVectorGeoJson(url, options) {
url = typeof url == 'string' ? url : '';
_super.call(this, url, options);
this._geoJsonFormat = new custom_ol_1.ol.format.GeoJSON();
this._transform = options.transform || { dataProjection: proj.proj4326, featureProjection: proj.proj3857 };
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
if (this.autoLoad || this.visible) {
this._load();
}
}
/**
* add feature collection
* @param {object} featureCollection - as geojson object
*/
LayerBaseVectorGeoJson.prototype.addFeatures = function (featureCollection) {
if (this._transform.dataProjection == 'EPSG:3857' && this._transform.featureProjection == 'EPSG:3857') {
this._source.addFeatures(this._geoJsonFormat.readFeatures(featureCollection));
}
else {
this._source.addFeatures(this._geoJsonFormat.readFeatures(featureCollection, this._transform));
}
};
/**
* trigger load features
* @protected
* @returns {boolean} if already loaded
*/
LayerBaseVectorGeoJson.prototype._load = function () {
var _this = this;
if (_super.prototype._load.call(this)) {
return true;
}
$.get(this._url, this._params, function (d) {
_this.addFeatures(d);
_this.loadCallback(_this);
}, 'json').fail(function () {
this._loaded = false;
});
return false;
};
/**
* callback function on map move
* @param {object} d the json response
* @override
*/
LayerBaseVectorGeoJson.prototype.mapMoveCallback = function (d) {
_super.prototype.mapMoveCallback.call(this, d);
this._source.addFeatures(this._geoJsonFormat.readFeatures(d, this._transform));
};
return LayerBaseVectorGeoJson;
}(LayerBaseVector_1.LayerBaseVector));
nm.LayerBaseVectorGeoJson = LayerBaseVectorGeoJson;
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = LayerBaseVectorGeoJson;
//# sourceMappingURL=LayerBaseVectorGeoJson.js.map