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WebMap.js
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1705 lines (1635 loc) · 65.9 KB
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/* Copyright© 2000 - 2018 SuperMap Software Co.Ltd. All rights reserved.
* This program are made available under the terms of the Apache License, Version 2.0
* which accompanies this distribution and is available at http://www.apache.org/licenses/LICENSE-2.0.html.*/
import ol from 'openlayers';
import {
FetchRequest,
SecurityManager
} from '@supermap/iclient-common';
import {
Util
} from '../core/Util';
import {
StyleUtils
} from '../core/StyleUtils';
import {
ColorsPickerUtil
} from '../core/colors_picker_util/ColorsPickerUtil';
import {
ArrayStatistic
} from '../core/ArrayStatistic';
ol.supermap = ol.supermap || {};
//数据转换工具
const transformTools = new ol.format.GeoJSON();
/**
* @class ol.supermap.WebMap
* @category iPortal/Online
* @classdesc 对接 iPortal/Online 地图类。
* @param {number} id - 地图的id
* @param {Object} options - 参数。
* @param {string} [options.map='map'] - 地图容器id。
* @param {string} [options.server="http://www.supermapol.com"] - 地图的地址。
* @param {function} [options.successCallback] - 成功加载地图后调用的函数。
* @param {function} [options.errorCallback] - 加载地图失败。
* @param {string} [options.credentialKey] - 凭证密钥。
* @param {string} [options.credentialValue] - 凭证值。
* @param {boolean} [options.excludePortalProxyUrl] - server传递过来的url是否带有代理
* @param {function} [options.mapSetting.mapClickCallback] - 地图被点击的回调函数
* @extends {ol.Observable}
*/
export class WebMap extends ol.Observable {
constructor(id, options) {
super();
this.mapId = id;
if (options) {
this.mapUrl = options.server || 'http://www.supermapol.com';
this.successCallback = options.successCallback;
this.errorCallback = options.errorCallback;
this.credentialKey = options.credentialKey;
this.credentialValue = options.credentialValue;
this.target = options.target || "map";
this.excludePortalProxyUrl = options.excludePortalProxyUrl || false;
}
this.createMap(options.mapSetting);
this.createWebmap();
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createMap
* @description 创建地图对象以及注册地图事件
* @param {object} mapSetting - 关于地图的设置以及需要注册的事件
*/
createMap(mapSetting) {
let overlays, controls;
if (mapSetting) {
overlays = mapSetting.overlays;
controls = mapSetting.controls;
}
this.map = new ol.Map({
overlays: overlays,
controls: controls,
target: this.target
});
mapSetting && this.registerMapEvent({
mapClickCallback: mapSetting.mapClickCallback
});
}
/**
* @private
* @function ol.supermap.WebMap.prototype.registerMapEvent
* @description 注册地图事件
* @param {object} mapSetting - 关于地图的设置以及需要注册的事件
*/
registerMapEvent(mapSetting) {
let map = this.map;
map.on("click", function (evt) {
mapSetting.mapClickCallback && mapSetting.mapClickCallback(evt);
});
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createWebmap
* @description 创建webmap
*/
createWebmap() {
let mapUrl = Util.getRootUrl(this.mapUrl) + 'web/maps/' + this.mapId + '/map';
if (this.credentialValue) {
mapUrl += ('.json?' + this.credentialKey + '=' + this.credentialValue);
}
let filter = 'getUrlResource.json?url=';
if(this.excludePortalProxyUrl && this.mapUrl.indexOf(filter) > -1) {
//大屏需求,或者有加上代理的
let urlArray = this.mapUrl.split(filter);
if(urlArray.length > 1) {
let url = urlArray[1];
mapUrl = urlArray[0] + filter + Util.getRootUrl(url) + 'web/maps/' + this.mapId + '/map.json';
}
}
//todo 请求用户以及更新时间和地图标签等参数，暂时不需要
// let appUrl = this.mapUrl;
// appUrl += ('.json?' + this.credentialKey + '=' + this.credentialValue);
// this.getAppInfo(appUrl);
this.getMapInfo(mapUrl);
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getMapInfo
* @description 获取地图的json信息
* @param {string} url - 请求地图的url
*/
getMapInfo(url) {
let that = this,
mapUrl = url;
if (url.indexOf('.json') === -1) {
//传递过来的url,没有包括.json,在这里加上。
mapUrl = `${url}.json`
}
FetchRequest.get(mapUrl, null, {
withCredentials: true
}).then(function (response) {
return response.json();
}).then(function (mapInfo) {
that.baseProjection = mapInfo.projection; //epsgCode是之前的数据格式 todo
that.mapParams = {
title: mapInfo.title,
description: mapInfo.description
}; //存储地图的名称以及描述等信息，返回给用户
that.addBaseMap(mapInfo);
if (!mapInfo.layers || mapInfo.layers.length === 0) {
that.sendMapToUser(0, 0);
} else {
that.addLayers(mapInfo);
}
}).catch(function (error) {
that.errorCallback && that.errorCallback(error, 'getMapFaild', that.map);
});
}
/**
* @private
* @function ol.supermap.WebMap.prototype.addBaseMap
* @description 获取地图的json信息
* @param {string} mapInfo - 请求地图的url
*/
addBaseMap(mapInfo) {
this.createView(mapInfo);
let layer = this.createBaseLayer(mapInfo);
this.map.addLayer(layer);
if (mapInfo.baseLayer && mapInfo.baseLayer.labelLayerVisible) {
let layerInfo = mapInfo.baseLayer;
//存在天地图路网
let labelLayer = new ol.layer.Tile({
source: this.createTiandituSource(layerInfo, layerInfo.layerType, mapInfo.projection, true),
zIndex: layerInfo.zIndex || 0,
visible: layerInfo.visible
});
this.map.addLayer(labelLayer);
}
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createView
* @description 创建地图视图
* @param {object} options - 关于地图的信息
*/
createView(options) {
let oldcenter = options.center,
zoom = options.level || 1,
extent = options.extent,
projection = this.baseProjection;
let center = [];
for (let key in oldcenter) {
center.push(oldcenter[key]);
}
if(center.length === 0) {
//兼容wms
center = [0,0];
}
extent = [extent.leftBottom.x, extent.leftBottom.y, extent.rightTop.x, extent.rightTop.y];
this.map.setView(new ol.View({
zoom,
center,
projection,
extent
}));
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createBaseLayer
* @description 创建底图
* @param {object} mapInfo - 关于地图的信息
*/
createBaseLayer(mapInfo) {
let source, layerInfo = mapInfo.baseLayer || mapInfo;
let layerType = layerInfo.layerType; //底图和rest地图兼容
if (layerType.indexOf('TIANDITU_VEC') > -1 || layerType.indexOf('TIANDITU_IMG') > -1 ||
layerType.indexOf('TIANDITU_TER') > -1) {
layerType = layerType.substr(0, 12);
}
let mapUrls = {
CLOUD: 'http://t2.supermapcloud.com/FileService/image?map=quanguo&type=web&x={x}&y={y}&z={z}',
CLOUD_BLACK: 'http://t3.supermapcloud.com/MapService/getGdp?x={x}&y={y}&z={z}',
OSM: 'http://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png',
GOOGLE: 'http://www.google.cn/maps/vt/pb=!1m4!1m3!1i{z}!2i{x}!3i{y}!2m3!1e0!2sm!3i380072576!3m8!2szh-CN!3scn!5e1105!12m4!1e68!2m2!1sset!2sRoadmap!4e0!5m1!1e0',
GOOGLE_CN: 'https://mt{0-3}.google.cn/vt/lyrs=m&hl=zh-CN&gl=cn&x={x}&y={y}&z={z}',
JAPAN_STD: 'http://cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png',
JAPAN_PALE: 'http://cyberjapandata.gsi.go.jp/xyz/pale/{z}/{x}/{y}.png',
JAPAN_RELIEF: 'http://cyberjapandata.gsi.go.jp/xyz/relief/{z}/{x}/{y}.png',
JAPAN_ORT: 'http://cyberjapandata.gsi.go.jp/xyz/ort/{z}/{x}/{y}.jpg'
},
url;
switch (layerType) {
case "TIANDITU_VEC":
case "TIANDITU_IMG":
case "TIANDITU_TER":
source = this.createTiandituSource(layerInfo, layerType, mapInfo.projection);
break;
case "BAIDU":
source = this.createBaiduSource();
break;
/*case 'BING':
source = this.createBingSource(layerInfo, mapInfo.projection);
break;*/
case "WMS":
source = this.createWMSSource(layerInfo);
break;
case "WMTS":
source = this.createWMTSSource(layerInfo);
break;
case 'TILE':
case 'SUPERMAP_REST':
source = this.createDynamicTiledSource(layerInfo);
break;
case 'CLOUD':
case 'CLOUD_BLACK':
case 'OSM':
case 'JAPAN_ORT':
case 'JAPAN_RELIEF':
case 'JAPAN_PALE':
case 'JAPAN_STD':
case 'GOOGLE_CN':
case 'GOOGLE':
url = mapUrls[layerType];
source = this.createXYZSource(layerInfo, url);
break;
default:
break;
}
var layer = new ol.layer.Tile({
source: source,
zIndex: layerInfo.zIndex || 0,
visible: layerInfo.visible
});
var layerId = Util.newGuid(8);
if (layerInfo.name) {
layer.setProperties({
name: layerInfo.name,
layerId: layerId
});
}
if(!mapInfo.baseLayer) {
//不是底图
layer.setVisible(layerInfo.visible);
layerInfo.opacity && layer.setOpacity(layerInfo.opacity);
}
//否则没有ID，对不上号
layerInfo.layer = layer;
layerInfo.layerId = layerId;
return layer;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createDynamicTiledSource
* @description 获取supermap iServer类型的地图的source。
* @param {object} layerInfo
*/
createDynamicTiledSource(layerInfo) {
let serverType = "IPORTAL",
credential = layerInfo.credential,
keyfix = 'Token',
keyParams = layerInfo.url,
projection = layerInfo.projection || this.baseProjection;
if (layerInfo.url.indexOf("www.supermapol.com") > -1 || layerInfo.url.indexOf("itest.supermapol.com") > -1) {
keyfix = 'Key';
keyParams = [keyParams];
serverType = "ONLINE";
}
if (credential) {
SecurityManager[`register${keyfix}`](keyParams, credential);
}
let source = new ol.source.TileSuperMapRest({
transparent: true,
url: layerInfo.url,
wrapX: false,
serverType: serverType,
prjCoordSys: {
epsgCode: projection.split(':')[1]
},
tileProxy: this.tileProxy
});
SecurityManager[`register${keyfix}`](layerInfo.url);
return source;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createTiandituSource
* @description 创建天地图的source。
* @param layerInfo 图层信息
* @param layerType 图层类型
* @param projection 地理坐标系
* @param isLabel 是否有路网图层
* @returns {ol.source.Tianditu} 天地图的source
*/
createTiandituSource(layerInfo, layerType, projection, isLabel) {
//todo 后台存储没有存储isLabel是否有标签
let options = {
layerType: layerType.split('_')[1].toLowerCase(),
isLabel: isLabel || false,
projection: projection
};
return new ol.source.Tianditu(options);
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createBaiduSource
* @description 创建百度地图的source。
* @returns {ol.source.BaiduMap} baidu地图的source
*/
createBaiduSource() {
return new ol.source.BaiduMap()
}
/*
/!**
* 创建bing地图的source
* @param layerInfo
* @param projection
* @returns {ol.source.XYZ}
*!/
createBingSource(layerInfo, projection) {
// todo 后台没有bing地图
let url = 'http://dynamic.t0.tiles.ditu.live.com/comp/ch/{quadKey}?it=G,TW,L,LA&mkt=zh-cn&og=109&cstl=w4c&ur=CN&n=z';
return new ol.source.XYZ({
wrapX: false,
projection: projection,
tileUrlFunction: function (coordinates) {
let /!*quadDigits = '', *!/[z, x, y] = [...coordinates];
y = y > 0 ? y - 1 : -y - 1;
let index = '';
for (let i = z; i > 0; i--) {
let b = 0;
let mask = 1 << (i - 1);
if ((x & mask) !== 0) b++;
if ((y & mask) !== 0) b += 2;
index += b.toString()
}
return url.replace('{quadKey}', index);
}
})
}*/
/**
* @private
* @function ol.supermap.WebMap.prototype.createXYZSource
* @description 创建图层的XYZsource。
* @param {Object} layerInfo - 图层信息。
* @param {url} url - EPSG code 编码。
* @returns {ol.source.XYZ} xyz的source
*/
createXYZSource(layerInfo, url) {
return new ol.source.XYZ({
url: url,
wrapX: false,
crossOrigin: window.location.host
})
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createWMSSource
* @description 创建wms地图source。
* @param {Object} layerInfo - 图层信息。
* @returns {ol.source.TileWMS}
*/
createWMSSource(layerInfo) {
let that = this;
return new ol.source.TileWMS({
url: layerInfo.url,
wrapX: false,
params: {
LAYERS: layerInfo.layers ? layerInfo.layers[0] : "0",
FORMAT: 'image/png'
},
projection: layerInfo.projection || that.baseProjection,
tileLoadFunction: function (imageTile, src) {
imageTile.getImage().src = src
}
})
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getWmtsInfo
* @description 获取wmts的图层参数。
* @param {Object} layerInfo - 图层信息。
* @param {function} callback - 获得wmts图层参数执行的回调函数
*/
getWmtsInfo(layerInfo, callback) {
let that = this;
let url = layerInfo.url;
let options = {
withCredentials: false,
withoutFormatSuffix: true
};
FetchRequest.get(url, null, options).then(function (response) {
return response.text();
}).then(function (capabilitiesText) {
const format = new ol.format.WMTSCapabilities();
let capabilities = format.read(capabilitiesText);
if (that.isValidResponse(capabilities)) {
let content = capabilities.Contents,
tileMatrixSet = content.TileMatrixSet,
layers = content.Layer,
layer, relSet = [],
idx;
for (let n = 0; n < layers.length; n++) {
if (layers[n].Title === layerInfo.name) {
idx = n;
layer = layers[idx];
var layerBounds = layer.WGS84BoundingBox;
// tileMatrixSetLink = layer.TileMatrixSetLink;
break;
}
}
let scales = [];
for (let i = 0; i < tileMatrixSet.length; i++) {
if (tileMatrixSet[i].Identifier === layerInfo.tileMatrixSet) {
for (let h = 0; h < tileMatrixSet[i].TileMatrix.length; h++) {
scales.push(tileMatrixSet[i].TileMatrix[h].ScaleDenominator)
}
break;
}
}
let name = layerInfo.name,
extent = ol.proj.transformExtent(layerBounds, 'EPSG:4326', that.baseProjection),
matrixSet = relSet[idx];
//将需要的参数补上
layerInfo.dpi = 90.7;
layerInfo.extent = extent;
layerInfo.format = "image/png";
layerInfo.matrixSet = matrixSet;
layerInfo.name = name;
layerInfo.orginEpsgCode = layerInfo.projection;
layerInfo.overLayer = true;
//只有这种，Dataviz里面不应该选择
layerInfo.requestEncoding = 'KVP';
layerInfo.scales = scales;
layerInfo.style = "default";
layerInfo.title = name;
layerInfo.unit = "m";
layerInfo.zIndex = idx;
callback(layerInfo);
}
}).catch(function (error) {
that.errorCallback && that.errorCallback(error, 'getWmtsFaild', that.map)
});
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createWMTSSource
* @description 获取WMTS类型图层的source。
* @param {Object} layerInfo - 图层信息。
* @returns {ol.tilegrid}
*/
createWMTSSource(layerInfo) {
let extent = layerInfo.extent || ol.proj.get(layerInfo.projection).getExtent();
return new ol.source.WMTS({
url: layerInfo.url,
layer: layerInfo.name,
format: 'image/png',
// style: 'default',
matrixSet: layerInfo.tileMatrixSet,
requestEncoding: layerInfo.requestEncoding || 'KVP',
tileGrid: this.getWMTSTileGrid(extent, layerInfo.scales, layerInfo.unit, layerInfo.dpi),
tileLoadFunction: function (imageTile, src) {
imageTile.getImage().src = src
}
})
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getWMTSTileGrid
* @description 获取wmts的瓦片。
* @param {Object} extent - 图层范围。
* @param {number} scales - 图层比例尺
* @param {string} unit - 单位
* @param {number} dpi - dpi
* @returns {ol.tilegrid.WMTS}
*/
getWMTSTileGrid(extent, scales, unit, dpi) {
let resolutionsInfo = this.getReslutionsFromScales(scales, dpi || 96, unit);
return new ol.tilegrid.WMTS({
extent: extent,
resolutions: resolutionsInfo.res,
matrixIds: resolutionsInfo.matrixIds
});
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getReslutionsFromScales
* @description 根据比例尺（比例尺分母）、地图单位、dpi、获取一个分辨率数组
* @param {array} scales - 比例尺（比例尺分母）
* @param {number} dpi - 地图dpi
* @param {string} unit - 单位
* @param {number} datumAxis
* @returns {{res: Array, matrixIds: Array}}
*/
getReslutionsFromScales(scales, dpi, unit, datumAxis) {
unit = (unit && unit.toLowerCase()) || 'degrees';
dpi = dpi > 0 ? dpi : 96;
datumAxis = datumAxis || 6378137;
let res = [],
matrixIds = [];
//这他妈的api不给identifier 我自己给个默认的
if (Util.isArray(scales)) {
scales && scales.forEach(function (scale, idx) {
matrixIds.push(idx);
res.push(this.getResolutionFromScale(scale, dpi, unit, datumAxis));
}, this);
} else {
let tileMatrixSet = scales['TileMatrix'];
tileMatrixSet && tileMatrixSet.forEach(function (tileMatrix) {
matrixIds.push(tileMatrix['Identifier']);
res.push(this.getResolutionFromScale(tileMatrix['ScaleDenominator'], dpi, unit, datumAxis));
}, this);
}
return {
res: res,
matrixIds: matrixIds
};
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getResolutionFromScale
* @description 获取一个WMTS source需要的tileGrid
* @param {number} scale - 比例尺（比例尺分母）
* @param {number} dpi - 地图dpi
* @param {string} unit - 单位
* @param {number} datumAxis
* @returns {{res: Array, matrixIds: Array}}
*/
getResolutionFromScale(scale, dpi, unit, datumAxis) {
//radio = 10000;
let res;
scale = +scale;
scale = (scale > 1.0) ? (1.0 / scale) : scale;
if (unit === 'degrees' || unit === 'dd' || unit === 'degree') {
res = 0.0254 * 10000 / dpi / scale / ((Math.PI * 2 * datumAxis) / 360) / 10000;
} else {
res = 0.0254 * 10000 / dpi / scale / 10000;
}
return res;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.isValidResponse
* @description 返回信息是否符合对应类型的标准
* @param {object} response - 返回的信息
* @returns {boolean}
*/
isValidResponse(response) {
let responseEnum = ['Contents', 'OperationsMetadata'],
valid = true;
if (responseEnum) {
for (let i = 0; i < responseEnum.length; i++) {
if (!response[responseEnum[i]] || response.error) {
valid = false;
break;
}
}
}
return valid;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.addLayers
* @description 添加叠加图层
* @param {object} mapInfo - 地图信息
*/
addLayers(mapInfo) {
let layers = mapInfo.layers,
that = this;
let features = [],
layerAdded = 0,
len = layers.length;
if (len > 0) {
//存储地图上所有的图层对象
this.layers = layers;
layers.forEach(function (layer) {
if ((layer.dataSource && layer.dataSource.serverId) || layer.layerType === "MARKER") {
//数据存储到iportal上了
let serverId = layer.dataSource ? layer.dataSource.serverId : layer.serverId;
let url = `${Util.getRootUrl(that.mapUrl)}web/datas/${serverId}/content.json?pageSize=9999999¤tPage=1`;
FetchRequest.get(url, null, {
withCredentials: true
}).then(function (response) {
return response.json()
}).then(function (data) {
if(!data.succeed === false) {
//请求失败
layerAdded++;
that.sendMapToUser(layerAdded, len);
that.errorCallback && that.errorCallback(data.error, 'getLayerFaild', that.map);
return;
}
if (data && data.type) {
if (data.type === "JSON" || data.type === "GEOJSON") {
data.content = JSON.parse(data.content);
features = that.geojsonToFeature(data.content, layer);
} else if (data.type === 'EXCEL' || data.type === 'CSV') {
features = that.excelData2Feature(data.content, layer);
}
that.addLayer(layer, features);
layerAdded++;
that.sendMapToUser(layerAdded, len);
}
}).catch(function (error) {
layerAdded++;
that.sendMapToUser(layerAdded, len);
that.errorCallback && that.errorCallback(error, 'getLayerFaild', that.map);
})
} else if (layer.layerType === 'SUPERMAP_REST' || layer.layerType === "TILE" ||
layer.layerType === "WMS" || layer.layerType === "WMTS") {
if (layer.layerType === "WMTS") {
that.getWmtsInfo(layer, function (layerInfo) {
that.map.addLayer(that.createBaseLayer(layerInfo));
})
} else {
that.map.addLayer(that.createBaseLayer(layer));
}
layerAdded++;
that.sendMapToUser(layerAdded, len);
} else if (layer.dataSource && layer.dataSource.type === "REST_DATA") {
let dataSource = layer.dataSource;
//从restData获取数据
Util.getFeatureBySQL(dataSource.url, [dataSource.dataSourseName || layer.name], function (result) {
features = that.parseGeoJsonData2Feature({
allDatas: {
features: result.result.features.features
},
fileCode: layer.projection,
featureProjection: that.baseProjection
});
/*if (!layerObj.layerInfo.dataTypes) {
let data = DataManager.assembleTableJSONData(result.result.features);
layerObj.layerInfo.dataTypes = Util.getFieldType(data.titles, data.rows[0]);
}*/
that.addLayer(layer, features);
layerAdded++;
that.sendMapToUser(layerAdded, len);
}, function (err) {
layerAdded++;
that.sendMapToUser(layerAdded, len);
that.errorCallback && that.errorCallback(err, 'getFeatureFaild', that.map)
});
} else if (layer.dataSource.type === "REST_MAP" && layer.dataSource.url) {
Util.queryFeatureBySQL(layer.dataSource.url, layer.dataSource.layerName, 'smid=1', null, null, function (result) {
var recordsets = result && result.result.recordsets;
var recordset = recordsets && recordsets[0];
var attributes = recordset.fields;
if (recordset && attributes) {
let fileterAttrs = [];
for (var i in attributes) {
var value = attributes[i];
if (value.indexOf('Sm') !== 0 || value === "SmID") {
fileterAttrs.push(value);
}
}
that.getFeatures(fileterAttrs, layer, function (features) {
that.addLayer(layer, features);
layerAdded++;
that.sendMapToUser(layerAdded, len);
},function (e) {
layerAdded++;
that.errorCallback && that.errorCallback(e, 'getFeatureFaild', that.map);
});
}
}, function (e) {
that.errorCallback && that.errorCallback(e, 'getFeatureFaild', that.map);
})
}
}, this);
}
}
getFeatures(fields, layerInfo, resolve, reject) {
var that = this;
var source = layerInfo.dataSource;
//示例数据
//let that = openApp;
var fileCode = layerInfo.projection;
Util.queryFeatureBySQL(source.url, source.layerName, null, fields, null, function (result) {
var recordsets = result.result.recordsets[0];
var features = recordsets.features.features;
var featuresObj = that.parseGeoJsonData2Feature({
allDatas: {
features
},
fileCode: fileCode,
featureProjection: that.baseProjection
}, 'JSON');
resolve(featuresObj);
}, function (err) {
reject(err);
});
}
/**
* @private
* @function ol.supermap.WebMap.prototype.sendMapToUser
* @description 将所有叠加图层叠加后，返回最终的map对象给用户，供他们操作使用
* @param {number} count - 已经叠加图层的数量（包括中途失败）
* @param {number} layersLen - 叠加图层总数
*/
sendMapToUser(count, layersLen) {
if (count === layersLen) {
this.successCallback(this.map, this.mapParams, this.layers);
}
}
/**
* @private
* @function ol.supermap.WebMap.prototype.excelData2Feature
* @description 将csv和xls文件内容转换成ol.feature
* @param {object} content - 文件内容
* @param {object} layerInfo - 图层信息
* @returns {Array} ol.feature的数组集合
*/
excelData2Feature(content, layerInfo) {
let rows = content.rows,
colTitles = content.colTitles;
// 解决V2恢复的数据中含有空格
for (let i in colTitles) {
if (Util.isString(colTitles[i])) {
colTitles[i] = Util.trim(colTitles[i]);
}
}
let fileCode = layerInfo.projection,
xIdx = colTitles.indexOf(layerInfo.xyField.xField),
yIdx = colTitles.indexOf(layerInfo.xyField.yField),
baseLayerEpsgCode = this.baseProjection,
features = [];
for (let i = 0, len = rows.length; i < len; i++) {
let rowDatas = rows[i],
attributes = {},
geomX = rows[i][xIdx],
geomY = rows[i][yIdx];
// 位置字段信息不存在 过滤数据
if (geomX !== '' && geomY !== '') {
let olGeom = new ol.geom.Point([+geomX, +geomY]);
if (fileCode !== baseLayerEpsgCode) {
olGeom.transform(fileCode, baseLayerEpsgCode);
}
for (let j = 0, leng = rowDatas.length; j < leng; j++) {
attributes[colTitles[j]] = rowDatas[j];
}
let feature = new ol.Feature({
geometry: olGeom,
Properties: attributes
});
feature.attributes = attributes;
features.push(feature);
}
}
return features;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.geojsonToFeature
* @description geojson 转换为 feature
* @param {object} layerInfo - 图层信息
* @returns {Array} ol.feature的数组集合
*/
geojsonToFeature(geojson, layerInfo) {
let allFeatures = geojson.features,
features = [];
for (let i = 0, len = allFeatures.length; i < len; i++) {
let feature = transformTools.readFeature(allFeatures[i], {
dataProjection: layerInfo.projection || 'EPSG:4326',
featureProjection: this.baseProjection || 'ESPG:4326'
});
//geojson格式的feature属性没有坐标系字段，为了统一，再次加上
let coordinate = feature.getGeometry().getCoordinates();
if (allFeatures[i].geometry.type === 'Point') {
// 标注图层 还没有属性值时候不加
if (allFeatures[i].properties) {
allFeatures[i].properties.lon = coordinate[0];
allFeatures[i].properties.lat = coordinate[1];
}
}
feature.attributes = allFeatures[i].properties || {};
// 标注图层特殊处理
let isMarker = false;
let featureInfo;
let useStyle;
if (allFeatures[i].dv_v5_markerInfo) {
featureInfo = allFeatures[i].dv_v5_markerInfo;
isMarker = true;
}
if (allFeatures[i].dv_v5_markerStyle) {
useStyle = allFeatures[i].dv_v5_markerStyle;
isMarker = true;
}
let properties;
if (isMarker) {
properties = Object.assign({}, {
featureInfo: featureInfo
}, {
useStyle: useStyle
});
//feature上添加图层的id，为了对应图层
feature.layerId = layerInfo.timeId;
//删除不需要的属性，因为这两个属性存储在properties上
delete feature.attributes.featureInfo;
delete feature.attributes.useStyle;
} else if (layerInfo.featureStyles) {
//V4 版本标注图层处理
let style = JSON.parse(layerInfo.featureStyles[i].style);
let attr = feature.attributes;
let imgUrl;
if (attr._smiportal_imgLinkUrl.indexOf('http://') > -1 || attr._smiportal_imgLinkUrl.indexOf('https://') > -1) {
imgUrl = attr._smiportal_imgLinkUrl;
} else if (attr._smiportal_imgLinkUrl !== undefined && attr._smiportal_imgLinkUrl !== null &&
attr._smiportal_imgLinkUrl !== '') {
//上传的图片，加上当前地址
imgUrl = `${Util.getIPortalUrl()}resources/markerIcon/${attr._smiportal_imgLinkUrl}`
}
featureInfo = {
dataViz_description: attr._smiportal_description,
dataViz_imgUrl: imgUrl,
dataViz_title: attr._smiportal_title,
dataViz_url: attr._smiportal_otherLinkUrl
};
style.anchor = [0.5, 1];
style.src = style.externalGraphic;
useStyle = style;
properties = Object.assign({}, {
featureInfo: featureInfo
}, {
useStyle: useStyle
});
delete attr._smiportal_description;
delete attr._smiportal_imgLinkUrl;
delete attr._smiportal_title;
delete attr._smiportal_otherLinkUrl;
} else {
properties = feature.attributes;
}
feature.setProperties(properties);
features.push(feature);
}
return features;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.parseGeoJsonData2Feature
* @description 将从restData地址上获取的json转换成feature（从iserver中获取的json转换成feature）
* @param {object} metaData - json内容
* @returns {Array} ol.feature的数组集合
*/
parseGeoJsonData2Feature(metaData) {
let allFeatures = metaData.allDatas.features,
features = [];
for (let i = 0, len = allFeatures.length; i < len; i++) {
let feature = transformTools.readFeature(allFeatures[i], {
dataProjection: metaData.fileCode || 'EPSG:4326',
featureProjection: metaData.featureProjection || Util.getBaseLayerProj() || 'EPSG:4326'
});
//geojson格式的feature属性没有坐标系字段，为了统一，再次加上
let coordinate = feature.getGeometry().getCoordinates();
if (allFeatures[i].geometry.type === 'Point') {
allFeatures[i].properties.lon = coordinate[0];
allFeatures[i].properties.lat = coordinate[1];
}
feature.attributes = allFeatures[i].properties || {};
feature.setProperties({
Properties: feature.attributes
});
features.push(feature);
}
return features;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.addLayer
* @description 将叠加图层添加到地图上
* @param {object} layerInfo - 图层信息
* @param {array} features - 图层上的feature集合
*/
addLayer(layerInfo, features) {
let layer, allFeatures;
if (layerInfo.style && layerInfo.filterCondition) {
if (layerInfo.layerType === "RANGE") {
allFeatures = features;
}
//将feature根据过滤条件进行过滤, 分段专题图因为要计算styleGroup所以暂时不过滤
features = this.getFiterFeatures(layerInfo.filterCondition, features);
}
if (layerInfo.layerType === "VECTOR") {
if (layerInfo.featureType === "POINT") {
if (layerInfo.style.type === 'SYMBOL_POINT') {
layer = this.createSymbolLayer(layerInfo, features);
} else {
layer = this.createGraphicLayer(layerInfo, features);
}
} else {
//线和面
layer = this.createVectorLayer(layerInfo, features)
}
} else if (layerInfo.layerType === "UNIQUE") {
layer = this.createUniqueLayer(layerInfo, features);
} else if (layerInfo.layerType === "RANGE") {
layer = this.createRangeLayer(layerInfo, features, allFeatures);
} else if (layerInfo.layerType === "HEAT") {
layer = this.createHeatLayer(layerInfo, features);
} else if (layerInfo.layerType === "MARKER") {
layer = this.createMarkerLayer(layerInfo, features)
}
let layerId = Util.newGuid(8);
if (layer && layerInfo.name) {
layer.setProperties({
name: layerInfo.name,
layerId: layerId
});
}
layer && this.map.addLayer(layer);
layerInfo.layer = layer;
layerInfo.opacity && layer.setOpacity(layerInfo.opacity);
layer.setVisible(layerInfo.visible);
layerInfo.layerId = layerId;
if (layerInfo.labelStyle && layerInfo.labelStyle.labelField) {
//存在标签专题图
this.addLabelLayer(layerInfo, features);
}
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getFiterFeatures
* @description 通过过滤条件查询满足的feature
* @param {string} filterCondition - 过滤条件
* @param {array} allFeatures - 图层上的feature集合
*/
getFiterFeatures(filterCondition, allFeatures) {
let jsonsql = window.jsonsql;
let condition = this.replaceFilterCharacter(filterCondition);
let sql = "select * from json where (" + condition + ")";
let filterFeatures = [];
for (let i = 0; i < allFeatures.length; i++) {
let feature = allFeatures[i];
let filterResult = false;
try {
filterResult = jsonsql.query(sql, {
attributes: feature.attributes
});
} catch (err) {
//必须把要过滤得内容封装成一个对象,主要是处理jsonsql(line : 62)中由于with语句遍历对象造成的问题
return false;
}
if (filterResult && filterResult.length > 0) {
//afterFilterFeatureIdx.push(i);