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3968 lines (3821 loc) · 164 KB
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/* Copyright© 2000 - 2020 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 proj4 from "proj4";
import {
FetchRequest,
SecurityManager,
ColorsPickerUtil,
ArrayStatistic,
Events,
CommonUtil
} from '@supermap/iclient-common';
import {
Util
} from '../core/Util';
import {
StyleUtils
} from '../core/StyleUtils';
import { TileSuperMapRest, Tianditu, BaiduMap } from '../mapping';
import { VectorTileSuperMapRest, Graphic as GraphicSource, MapboxStyles, OverlayGraphic } from '../overlay';
import { DataFlowService } from '../services'
import provincialCenterData from './webmap/config/ProvinceCenter.json';// eslint-disable-line import/extensions
import municipalCenterData from './webmap/config/MunicipalCenter.json';// eslint-disable-line import/extensions
import GeoJSON from 'ol/format/GeoJSON';
import MVT from 'ol/format/MVT';
import Observable from 'ol/Observable';
import Map from 'ol/Map';
import View from 'ol/View';
import * as olProj from 'ol/proj';
import * as olProj4 from 'ol/proj/proj4';
import Units from 'ol/proj/Units';
import * as olLayer from 'ol/layer';
import WMTSCapabilities from 'ol/format/WMTSCapabilities';
import TileGrid from 'ol/tilegrid/TileGrid';
import WMTSTileGrid from 'ol/tilegrid/WMTS';
import * as olGeometry from 'ol/geom';
import * as olSource from 'ol/source';
import Feature from 'ol/Feature';
import Style from 'ol/style/Style';
import FillStyle from 'ol/style/Fill';
import Text from 'ol/style/Text';
import Collection from 'ol/Collection';
import { containsCoordinate, getCenter } from "ol/extent";
window.proj4 = proj4;
window.Proj4js = proj4;
//数据转换工具
const transformTools = new GeoJSON();
// 迁徙图最大支持要素数量
const MAX_MIGRATION_ANIMATION_COUNT = 1000;
//不同坐标系单位。计算公式中的值
const metersPerUnit = {
DEGREES: 2 * Math.PI * 6370997 / 360,
DEGREE: 2 * Math.PI * 6370997 / 360,
FEET: 0.3048,
METERS: 1,
METER: 1,
M: 1,
USFEET: 1200 / 3937
};
const dpiConfig = {
default: 96, // 常用dpi
iServerWMTS: 90.7142857142857 // iserver使用的wmts图层dpi
}
/**
* @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.target='map'] - 地图容器id
* @param {string} [options.server="https://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] - 加载地图失败调用的函数
* @param {string} [options.credentialKey] - 凭证密钥。例如为"key"、"token"，或者用户自定义的密钥。用户申请了密钥，此参数必填
* @param {string} [options.credentialValue] - 凭证密钥对应的值，credentialKey和credentialValue必须一起使用
* @param {boolean} [options.withCredentials=false] - 请求是否携带 cookie
* @param {boolean} [options.excludePortalProxyUrl] - server传递过来的url是否带有代理
* @param {string} [options.tiandituKey] - 天地图的key
* @param {function} [options.mapSetting.mapClickCallback] - 地图被点击的回调函数
* @param {function} [options.mapSetting.overlays] - 地图的overlayer
* @param {function} [options.mapSetting.controls] - 地图的控件
* @param {function} [options.mapSetting.interactions] - 地图控制的参数
* @extends {ol/Observable}
*/
export class WebMap extends Observable {
constructor(id, options) {
super();
this.mapId = id;
options = options || {};
this.server = options.server || 'https://www.supermapol.com';
this.successCallback = options.successCallback;
this.errorCallback = options.errorCallback;
this.credentialKey = options.credentialKey;
this.credentialValue = options.credentialValue;
this.withCredentials = options.withCredentials || false;
this.target = options.target || "map";
this.excludePortalProxyUrl = options.excludePortalProxyUrl || false;
this.tiandituKey = options.tiandituKey;
//计数叠加图层，处理过的数量（成功和失败都会计数）
this.layerAdded = 0;
this.events = new Events(this, null, ["updateDataflowFeature"], true);
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,interactions;
if (mapSetting) {
interactions = mapSetting.interactions;
overlays = mapSetting.overlays;
controls = mapSetting.controls;
}
this.map = new Map({
interactions: interactions,
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 urlArr = this.server.split('');
if (urlArr[urlArr.length - 1] !== '/') {
this.server += '/';
}
let mapUrl = this.server + 'web/maps/' + this.mapId + '/map';
let filter = 'getUrlResource.json?url=';
if (this.excludePortalProxyUrl && this.server.indexOf(filter) > -1) {
//大屏需求,或者有加上代理的
let urlArray = this.server.split(filter);
if (urlArray.length > 1) {
mapUrl = urlArray[0] + filter + this.server + 'web/maps/' + this.mapId + '/map.json';
}
}
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(that.getRequestUrl(mapUrl), null, {
withCredentials: this.withCredentials
}).then(function (response) {
return response.json();
}).then(async function (mapInfo) {
if (mapInfo.succeed === false) {
that.errorCallback && that.errorCallback(mapInfo.error, 'getMapFaild', that.map);
return;
}
if(mapInfo.projection === 'EPSG:910111' || mapInfo.projection === 'EPSG:910112'){
// 早期数据存在的自定义坐标系 "EPSG:910111": "GCJ02MERCATOR"， "EPSG:910112": "BDMERCATOR"
mapInfo.projection = "EPSG:3857";
}else if(mapInfo.projection === 'EPSG:910101' || mapInfo.projection === 'EPSG:910102'){
// 早期数据存在的自定义坐标系 "EPSG:910101": "GCJ02", "EPSG:910102": "BD",
mapInfo.projection = "EPSG:4326";
}
that.baseProjection = mapInfo.projection;
that.webMapVersion = mapInfo.version;
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
// 多坐标系支持
if(proj4){
(olProj4 && olProj4.register) ? olProj4.register(proj4) : window.ol.proj.setProj4(proj4) ;
}
// 目前iServer服务中可能出现的EPSG 0，-1，-1000
if(mapInfo.projection.indexOf("EPSG") === 0 && mapInfo.projection.split(":")[1] <= 0){
//对于这两种地图，只能view，不能叠加其他图层
that.createSpecLayer(mapInfo);
return;
} else if(that.addProjctionFromWKT(mapInfo.projection)){
mapInfo.projection = that.baseProjection = that.getEpsgInfoFromWKT(mapInfo.projection);
}else{
// 不支持的坐标系
that.errorCallback && that.errorCallback({type: "Not support CS", errorMsg: `Not support CS: ${mapInfo.projection}`}, 'getMapFaild', that.map);
return;
}
if (mapInfo.baseLayer && mapInfo.baseLayer.layerType === 'MAPBOXSTYLE') {
// 添加矢量瓦片服务作为底图
that.addMVTBaseMap(mapInfo).then(() => {
that.createView(mapInfo);
if (!mapInfo.layers || mapInfo.layers.length === 0) {
that.sendMapToUser(0);
} else {
that.addLayers(mapInfo);
}
});
} else {
await that.addBaseMap(mapInfo);
if (!mapInfo.layers || mapInfo.layers.length === 0) {
that.sendMapToUser(0);
} else {
that.addLayers(mapInfo);
}
}
}).catch(function (error) {
that.errorCallback && that.errorCallback(error, 'getMapFaild', that.map);
});
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getScales
* @description 根据级别获取每个级别对应的分辨率
* @param {Object} baseLayerInfo - 底图的图层信息
*/
getScales(baseLayerInfo) {
let scales = [], resolutions = {}, res, scale, resolutionArray = [],
coordUnit = baseLayerInfo.coordUnit || olProj.get(baseLayerInfo.projection).getUnits();
if(!coordUnit) {
coordUnit = this.baseProjection === "EPSG:3857" ? "m" : "degree";
}
if(baseLayerInfo.visibleScales && baseLayerInfo.visibleScales.length > 0) {
//底部设置过固定比例尺，则使用设置的
baseLayerInfo.visibleScales.forEach(scale => {
let value = 1/scale;
res = this.getResFromScale(value, coordUnit);
scale = `1:${value.toLocaleString()}`;
//多此一举转换，因为toLocalString会自动保留小数点后三位，and当第二位小数是0就会保存小数点后两位。所有为了统一。
resolutions[this.formatScale(scale)] = res;
resolutionArray.push(res);
scales.push(scale);
}, this)
} else if(baseLayerInfo.layerType === 'WMTS') {
baseLayerInfo.scales.forEach(scale => {
res = this.getResFromScale(scale, coordUnit, 90.7);
scale = `1:${scale.toLocaleString()}`;
//多此一举转换，因为toLocalString会自动保留小数点后三位，and当第二位小数是0就会保存小数点后两位。所有为了统一。
resolutions[this.formatScale(scale)] = res;
resolutionArray.push(res);
scales.push(scale);
}, this)
} else {
let {minZoom=0, maxZoom=22} = baseLayerInfo, view = this.map.getView();
for(let i=minZoom; i<= maxZoom; i++) {
res = view.getResolutionForZoom(i);
scale = this.getScaleFromRes(res, coordUnit);
if(scales.indexOf(scale) === -1) {
//不添加重复的比例尺
scales.push(scale);
let attr = scale.replace(/,/g, "");
resolutions[attr] = res;
resolutionArray.push(res);
}
}
}
this.scales = scales;
this.resolutions = resolutions;
this.resolutionArray = resolutionArray;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getResFromScale
* @description 将比例尺转换为分辨率
* @param {Number} scale - 比例尺
* @param {String} coordUnit - 比例尺单位
* @param {Number} dpi
*/
getResFromScale(scale, coordUnit="DEGREE", dpi=96) {
let mpu = metersPerUnit[coordUnit.toUpperCase()];
return scale * .0254 / dpi / mpu;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getScaleFromRes
* @description 将分辨率转换为比例尺
* @param {Number} resolution - 分辨率
* @param {String} coordUnit - 比例尺单位
* @param {Number} dpi
*/
getScaleFromRes(resolution, coordUnit="DEGREE", dpi=96) {
let scale, mpu = metersPerUnit[coordUnit.toUpperCase()];
scale = resolution * dpi * mpu / .0254;
return '1:'+ scale.toLocaleString();
}
/**
* @private
* @function ol.supermap.WebMap.prototype.formatScale
* @description 将有千位符的数字转为普通数字。例如：1,234 => 1234
* @param {number} scale - 比例尺分母
*/
formatScale(scale) {
return scale.replace(/,/g, "");
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createSpecLayer
* @description 创建坐标系为0和-1000的图层
* @param {object} mapInfo - 地图信息
*/
createSpecLayer(mapInfo) {
let me = this,
baseLayerInfo = mapInfo.baseLayer,
url = baseLayerInfo.url,
baseLayerType = baseLayerInfo.layerType;
let extent = [mapInfo.extent.leftBottom.x, mapInfo.extent.leftBottom.y, mapInfo.extent.rightTop.x, mapInfo.extent.rightTop.y];
let proj = new olProj.Projection({
extent,
units: 'm',
code: 'EPSG:0'
});
olProj.addProjection(proj);
let options = {
center: mapInfo.center,
level: 0
}
//添加view
me.baseProjection = proj;
let viewOptions = {
center: options.center ? [options.center.x, options.center.y] : [0,0],
zoom: 0,
projection: proj
}
if(!['4', '5'].includes(Util.getOlVersion())) { // 兼容 ol 4，5，6
viewOptions.multiWorld = true;
}
let view = new View(viewOptions);
me.map.setView(view);
if(me.mapParams) {
me.mapParams.extent = extent;
me.mapParams.projection = mapInfo.projection;
}
if(url.indexOf("?token=") > -1) {
//兼容iserver地址有token的情况
me.credentialKey = 'token';
me.credentialValue = mapInfo.baseLayer.credential = url.split("?token=")[1];
url = url.split("?token=")[0];
}
let source;
if(baseLayerType === "TILE"){
FetchRequest.get(me.getRequestUrl(`${url}.json`), null, {
withCredentials: this.withCredentials
}).then(function (response) {
return response.json();
}).then(function (result) {
baseLayerInfo.originResult = result;
let serverType = "IPORTAL", credential = baseLayerInfo.credential, keyfix = 'Token', keyParams = baseLayerInfo.url;
if (baseLayerInfo.url.indexOf("www.supermapol.com") > -1 || baseLayerInfo.url.indexOf("itest.supermapol.com") > -1) {
keyfix = 'Key';
keyParams = [keyParams];
serverType = "ONLINE";
}
if (credential) {
SecurityManager[`register${keyfix}`](keyParams, credential);
}
let options = {
serverType,
url,
tileGrid: TileSuperMapRest.optionsFromMapJSON(url, result).tileGrid
}
if (url && !me.isSameDomain(url)) {
options.tileProxy = me.server + 'apps/viewer/getUrlResource.png?url=';
}
source = new TileSuperMapRest(options);
me.addSpecToMap(source);
}).catch(function(error) {
me.errorCallback && me.errorCallback(error, 'getMapFaild', me.map);
});
} else if(baseLayerType === "WMS"){
source = me.createWMSSource(baseLayerInfo);
me.addSpecToMap(source);
} else if(baseLayerType === "WMTS"){
FetchRequest.get(me.getRequestUrl(url), null, {
withCredentials: this.withCredentials
}).then(function (response) {
return response.text();
}).then(function(capabilitiesText) {
baseLayerInfo.extent = [mapInfo.extent.leftBottom.x, mapInfo.extent.leftBottom.y, mapInfo.extent.rightTop.x, mapInfo.extent.rightTop.y];
baseLayerInfo.scales = me.getWMTSScales(baseLayerInfo.tileMatrixSet, capabilitiesText);
baseLayerInfo.dpi = dpiConfig.iServerWMTS;
source = me.createWMTSSource(baseLayerInfo);
me.addSpecToMap(source);
}).catch(function(error) {
me.errorCallback && me.errorCallback(error, 'getMapFaild', me.map);
})
}else{
me.errorCallback && me.errorCallback({type: "Not support CS", errorMsg: `Not support CS: ${baseLayerType}`}, 'getMapFaild', me.map);
}
}
/**
* @private
* @function ol.supermap.WebMap.prototype.addSpecToMap
* @description 将坐标系为0和-1000的图层添加到地图上
* @param {object} mapInfo - 地图信息
*/
addSpecToMap(source) {
let layer = new olLayer.Tile({
source: source,
zIndex: 0
});
this.map.addLayer(layer);
this.sendMapToUser(0);
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getWMTSScales
* @description 获取wmts的比例尺
* @param {object} identifier - 图层存储的标识信息
* @param {object} capabilitiesText - wmts信息
*/
getWMTSScales(identifier, capabilitiesText) {
const format = new WMTSCapabilities();
let capabilities = format.read(capabilitiesText);
let content = capabilities.Contents,
tileMatrixSet = content.TileMatrixSet;
let scales = [];
for (let i = 0; i < tileMatrixSet.length; i++) {
if (tileMatrixSet[i].Identifier === identifier) {
for (let h = 0; h < tileMatrixSet[i].TileMatrix.length; h++) {
scales.push(tileMatrixSet[i].TileMatrix[h].ScaleDenominator)
}
break;
}
}
return scales;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.addBaseMap
* @description 添加底图
* @param {string} mapInfo - 请求地图的url
*/
async addBaseMap(mapInfo) {
let {baseLayer} = mapInfo, layerType = baseLayer.layerType;
//底图，使用默认的配置，不用存储的
if(layerType !== 'TILE' && layerType !== 'WMS' && layerType !== 'WMTS'){
this.getInternetMapInfo(mapInfo.baseLayer);
}else if(layerType === 'WMTS'){
// 通过请求完善信息
await this.getWmtsInfo(baseLayer);
}else if(layerType === 'TILE'){
await this.getTileInfo(baseLayer);
}
baseLayer.projection = mapInfo.projection;
if(!baseLayer.extent) {
baseLayer.extent = [mapInfo.extent.leftBottom.x, mapInfo.extent.leftBottom.y, mapInfo.extent.rightTop.x, mapInfo.extent.rightTop.y];
}
this.createView(mapInfo);
let layer = this.createBaseLayer(baseLayer, 0);
//底图增加图层类型，DV分享需要用它来识别版权信息
layer.setProperties({
layerType: layerType
});
this.map.addLayer(layer);
if(this.mapParams) {
this.mapParams.extent = baseLayer.extent;
this.mapParams.projection = mapInfo.projection;
}
if (mapInfo.baseLayer && mapInfo.baseLayer.labelLayerVisible) {
let layerInfo = mapInfo.baseLayer;
//存在天地图路网
let labelLayer = new olLayer.Tile({
source: this.createTiandituSource(layerInfo.layerType, mapInfo.projection, true),
zIndex: layerInfo.zIndex || 1,
visible: layerInfo.visible
});
this.map.addLayer(labelLayer);
}
}
/**
* @private
* @function ol.supermap.WebMap.prototype.addMVTBaseMap
* @description 添加矢量瓦片服务底图
* @param {object} mapInfo - 地图信息
*/
addMVTBaseMap(mapInfo) {
// 获取地图详细信息
return this.getMBStyle(mapInfo).then(() => {
// 创建图层
let baseLayerInfo = mapInfo.baseLayer;
return this.createMVTLayer(baseLayerInfo).then(layer => {
let layerID = Util.newGuid(8);
if (baseLayerInfo.name) {
layer.setProperties({
name: baseLayerInfo.name,
layerID: layerID,
layerType: 'VECTOR_TILE'
});
}
//否则没有ID，对不上号
baseLayerInfo.layer = layer;
baseLayerInfo.layerID = layerID;
this.map.addLayer(layer);
});
});
}
/**
* @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 !== undefined ? options.level : 1,
maxZoom = options.maxZoom || 22,
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];
}
//与DV一致用底图的默认范围，不用存储的范围。否则会导致地图拖不动
this.baseLayerExtent = extent = options.baseLayer && options.baseLayer.extent;
if(this.mapParams) {
this.mapParams.extent = extent;
this.mapParams.projection = projection;
}
//当前中心点不在extent内,就用extent的中心点 todo
!containsCoordinate(extent, center) && (center = getCenter(extent));
// 计算当前最大分辨率
let baseLayer = options.baseLayer;
let maxResolution, minResolution;
if((baseLayer.visibleScales && baseLayer.visibleScales.length > 0) || (baseLayer.scales && baseLayer.scales.length >0)) {
//底图有固定比例尺，就直接获取。不用view计算
this.getScales(baseLayer);
} else if(options.baseLayer && ['TILE', 'VECTOR_TILE'].includes(options.baseLayer.layerType) && extent && extent.length === 4){
let width = extent[2] - extent[0];
let height = extent[3] - extent[1];
let maxResolution1 = width / 512;
let maxResolution2 = height / 512;
maxResolution = Math.max(maxResolution1, maxResolution2);
}
// if(options.baseLayer.visibleScales && options.baseLayer.visibleScales.length > 0){
// maxZoom = options.baseLayer.visibleScales.length;
// }
let viewOptions;
if(baseLayer.layerType === "WMTS"){
if(baseLayer.scales && baseLayer.scales.length >0) {
//因为新版extent超出，不可见。所以将extent去除
viewOptions = { zoom, center, projection, resolutions: this.resolutionArray, maxZoom};
} else {
viewOptions = { zoom, center, projection, maxZoom};
this.getScales(baseLayer);
}
}else {
if(this.resolutionArray && this.resolutionArray.length > 0) {
viewOptions = { zoom, center, projection, resolutions: this.resolutionArray, maxZoom};
} else {
viewOptions = {zoom, center, projection, maxResolution, minResolution, maxZoom};
this.getScales(baseLayer);
}
}
if(!['4', '5'].includes(Util.getOlVersion())){ // 兼容 ol 4，5，6
viewOptions.multiWorld = true;
viewOptions.showFullExtent = true;
viewOptions.enableRotation = false;
viewOptions.constrainResolution = true; //设置此参数，是因为需要显示整数级别。为了可视比例尺中包含当前比例尺
}
this.map.setView(new View(viewOptions));
if (options.visibleExtent) {
const view = this.map.getView();
const resolution = view.getResolutionForExtent(options.visibleExtent, this.map.getSize());
view.setResolution(resolution);
view.setCenter(getCenter(options.visibleExtent));
}
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createBaseLayer
* @description 创建矢量图层，包括底图及其叠加的矢量图层
* @param {object} layerInfo - 关于地图的信息
* @param {number} index - 当前图层在地图中的index
* @param {boolean} isCallBack - 是否调用回调函数
* @param {scope} {object} this对象
*/
createBaseLayer(layerInfo, index, isCallBack, scope) {
let source, isBaseLayer, that= this;
if(scope){
// 解决异步回调
that = scope;
}
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);
}
switch (layerType) {
case "TIANDITU_VEC":
case "TIANDITU_IMG":
case "TIANDITU_TER":
source = this.createTiandituSource(layerType, layerInfo.projection);
break;
case "BAIDU":
source = this.createBaiduSource();
break;
case 'BING':
source = this.createBingSource(layerInfo, layerInfo.projection);
break;
case "WMS":
source = this.createWMSSource(layerInfo);
break;
case "WMTS":
source = that.createWMTSSource(layerInfo);
break;
case 'TILE':
case 'SUPERMAP_REST':
source = that.createDynamicTiledSource(layerInfo, isBaseLayer);
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':
source = this.createXYZSource(layerInfo);
break;
default:
break;
}
var layer = new olLayer.Tile({
source: source,
zIndex: layerInfo.zIndex || 1,
visible: layerInfo.visible
});
var layerID = Util.newGuid(8);
if (layerInfo.name) {
layer.setProperties({
name: layerInfo.name,
layerID: layerID
});
}
if(layerInfo.visible === undefined || layerInfo.visible === null) {
layerInfo.visible = true;
}
layer.setVisible(layerInfo.visible);
layerInfo.opacity && layer.setOpacity(layerInfo.opacity);
//layerInfo没有存储index属性
index && layer.setZIndex(index);
//否则没有ID，对不上号
layerInfo.layer = layer;
layerInfo.layerID = layerID;
let {visibleScale, autoUpdateTime} = layerInfo, minResolution, maxResolution;
if(visibleScale) {
maxResolution = this.resolutions[visibleScale.minScale];
minResolution = this.resolutions[visibleScale.maxScale];
//比例尺和分别率是反比的关系
maxResolution > 1 ? layer.setMaxResolution(Math.ceil(maxResolution)) : layer.setMaxResolution(maxResolution * 1.1);
layer.setMinResolution(minResolution);
}
if(autoUpdateTime && !layerInfo.autoUpdateInterval) {
//自动更新
layerInfo.autoUpdateInterval = setInterval(() => {
that.updateTileToMap(layerInfo, index);
}, autoUpdateTime);
}
if(isCallBack){
layer.setZIndex(0); // wmts
that.map.addLayer(layer);
}
return layer;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.updateTileToMap
* @description 获取底图对应的图层信息，不是用请求回来的底图信息
* @param {object} layerInfo - 图层信息
* @param {number} layerIndex - 图层index
*/
updateTileToMap(layerInfo, layerIndex) {
this.map.removeLayer(layerInfo.layer);
this.map.addLayer(this.createBaseLayer(layerInfo, layerIndex));
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getInternetMapInfo
* @description 获取底图对应的图层信息，不是用请求回来的底图信息
* @param {object} baseLayerInfo - 底图信息
* @returns {Object} 底图的具体信息
*/
getInternetMapInfo(baseLayerInfo) {
const baiduBounds = [-20037508.3427892, -20037508.3427892, 20037508.3427892, 20037508.3427892];
const bounds_4326 = [-180, -90, 180, 90];
const osmBounds = [-20037508.34, -20037508.34, 20037508.34, 20037508.34];
const japanReliefBounds = [12555667.53929,1281852.98656,17525908.86651,7484870.70596];
const japanOrtBounds = [-19741117.14519,-10003921.36848,19981677.71404,19660983.56089];
baseLayerInfo.units= "m";
switch (baseLayerInfo.layerType){
case( 'BAIDU'):
baseLayerInfo.iServerUrl= 'https://map.baidu.com/';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 1;
baseLayerInfo.maxZoom= 19;
baseLayerInfo.level= 1;
baseLayerInfo.extent= baiduBounds;
// thumbnail: this.getImagePath('bmap.png') 暂时不用到缩略图
break;
case ('CLOUD'):
baseLayerInfo.url= 'http://t2.supermapcloud.com/FileService/image?map=quanguo&type=web&x={x}&y={y}&z={z}';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 1;
baseLayerInfo.maxZoom= 18;
baseLayerInfo.level= 1;
baseLayerInfo.extent= baiduBounds;
break;
case ('CLOUD_BLACK'):
baseLayerInfo.url= 'http://t3.supermapcloud.com/MapService/getGdp?x={x}&y={y}&z={z}';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 1;
baseLayerInfo.maxZoom= 18;
baseLayerInfo.level= 1;
baseLayerInfo.extent= baiduBounds;
break;
case ('tencent'):
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 1;
baseLayerInfo.maxZoom= 18;
baseLayerInfo.level= 1;
baseLayerInfo.extent= baiduBounds;
break;
case ('TIANDITU_VEC_3857'):
case ('TIANDITU_IMG_3857'):
case ('TIANDITU_TER_3857'):
baseLayerInfo.iserverUrl= 'https://map.tianditu.gov.cn/';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 0;
baseLayerInfo.maxZoom= 19;
baseLayerInfo.level= 1;
baseLayerInfo.extent= baiduBounds;
if(baseLayerInfo.layerType === "TIANDITU_TER_3857"){
baseLayerInfo.maxZoom = 14;
}
break;
case ('TIANDITU_VEC_4326'):
case ('TIANDITU_IMG_4326'):
case ('TIANDITU_TER_4326'):
baseLayerInfo.iserverUrl= 'https://map.tianditu.gov.cn/';
baseLayerInfo.epsgCode= 'EPSG:4326';
baseLayerInfo.minZoom= 0;
baseLayerInfo.maxZoom= 19;
baseLayerInfo.level= 1;
baseLayerInfo.extent= bounds_4326;
if(baseLayerInfo.layerType === "TIANDITU_TER_4326"){
baseLayerInfo.maxZoom = 14;
}
break;
case ('OSM'):
baseLayerInfo.url= 'http://{a-c}.tile.openstreetmap.org/{z}/{x}/{y}.png';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 1;
baseLayerInfo.maxZoom= 19;
baseLayerInfo.level= 1;
baseLayerInfo.extent= osmBounds;
baseLayerInfo.iserverUrl= 'https://www.openstreetmap.org';
break;
case ('GOOGLE'):
baseLayerInfo.url= 'https://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';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 1;
baseLayerInfo.maxZoom= 22;
baseLayerInfo.level= 1;
baseLayerInfo.extent= osmBounds;
baseLayerInfo.iserverUrl= 'https://www.google.cn/maps';
break;
case ('JAPAN_STD'):
baseLayerInfo.url= 'https://cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 1;
baseLayerInfo.maxZoom= 19;
baseLayerInfo.level= 0;
baseLayerInfo.extent= osmBounds;
break;
case ('JAPAN_PALE'):
baseLayerInfo.url= 'https://cyberjapandata.gsi.go.jp/xyz/pale/{z}/{x}/{y}.png';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 2;
baseLayerInfo.maxZoom= 19;
baseLayerInfo.level= 2;
baseLayerInfo.extent= osmBounds;
break;
case ('JAPAN_RELIEF'):
baseLayerInfo.url= 'https://cyberjapandata.gsi.go.jp/xyz/relief/{z}/{x}/{y}.png';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 5;
baseLayerInfo.maxZoom= 14;
baseLayerInfo.level= 5;
baseLayerInfo.extent= japanReliefBounds;
break ;
case ('JAPAN_ORT'):
baseLayerInfo.url= 'https://cyberjapandata.gsi.go.jp/xyz/ort/{z}/{x}/{y}.jpg';
baseLayerInfo.epsgCode= 'EPSG:3857';
baseLayerInfo.minZoom= 2;
baseLayerInfo.maxZoom= 12;
baseLayerInfo.level= 2;
baseLayerInfo.extent= japanOrtBounds;
break;
}
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createDynamicTiledSource
* @description 获取supermap iServer类型的地图的source。
* @param {object} layerInfo
* @param {boolean} isBaseLayer 是否是底图
*/
createDynamicTiledSource(layerInfo, isBaseLayer) {
let serverType = "IPORTAL",
credential = layerInfo.credential,
keyfix = 'Token',
keyParams = layerInfo.url;
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);
}
// extent: isBaseLayer ? layerInfo.extent : ol.proj.transformExtent(layerInfo.extent, layerInfo.projection, this.baseProjection),
let options = {
transparent: true,
url: layerInfo.url,
wrapX: false,
serverType: serverType,
crossOrigin: 'anonymous',
// extent: this.baseLayerExtent,
prjCoordSys:{ epsgCode: isBaseLayer ? layerInfo.projection.split(':')[1] : this.baseProjection.split(':')[1] }
};
if(layerInfo.visibleScales && layerInfo.visibleScales.length >0){
let visibleResolutions = [];
for(let i in layerInfo.visibleScales){
let resolution = Util.scaleToResolution(layerInfo.visibleScales[i], dpiConfig.default, layerInfo.coordUnit);
visibleResolutions.push(resolution);
}
layerInfo.visibleResolutions = visibleResolutions;
let tileGrid = new TileGrid({
extent: layerInfo.extent,
resolutions: visibleResolutions
});
options.tileGrid = tileGrid;
}else{
options.extent = this.baseLayerExtent;
//bug:ISVJ-2412,不添加下列代码出不了图。参照iserver ol3出图方式
let tileGrid = new TileGrid({
extent: layerInfo.extent,
resolutions: this.getResolutionsFromBounds(layerInfo.extent)
});
options.tileGrid = tileGrid;
}
//主机名相同时不添加代理
if (layerInfo.url && !this.isSameDomain(layerInfo.url)) {
options.tileProxy = this.server + 'apps/viewer/getUrlResource.png?url=';
}
let source = new TileSuperMapRest(options);
SecurityManager[`register${keyfix}`](layerInfo.url);
return source;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.getResolutionsFromBounds
* @description 获取比例尺数组
* @param bounds {Array} 范围数组
* @returns {styleResolutions} 比例尺数组
*/
getResolutionsFromBounds(bounds){
let styleResolutions = [];
let temp = Math.abs(bounds[0] - bounds[2])/ 512;
for(let i = 0;i < 22;i++){
if(i === 0){
styleResolutions[i] = temp;
continue;
}
temp = temp / 2;
styleResolutions[i] = temp;
}
return styleResolutions;
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createTiandituSource
* @description 创建天地图的source。
* @param layerType 图层类型
* @param projection 地理坐标系
* @param isLabel 是否有路网图层
* @returns {ol.source.Tianditu} 天地图的source
*/
createTiandituSource(layerType, projection, isLabel) {
let options = {
layerType: layerType.split('_')[1].toLowerCase(),
isLabel: isLabel || false,
projection: projection,
url: `https://t{0-7}.tianditu.gov.cn/{layer}_{proj}/wmts?tk=${this.tiandituKey}`
};
return new 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 BaiduMap()
}
/**
* @private
* @function ol.supermap.WebMap.prototype.createBingSource
* @description 创建bing地图的source。
* @returns {ol/source/XYZ} bing地图的source
*/
createBingSource(layerInfo, projection) {
let url = 'https://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 olSource.XYZ({
wrapX: false,
projection: projection,
crossOrigin: 'anonymous',
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。