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- <!--********************************************************************
- * Copyright© 2000 - 2021 SuperMap Software Co.Ltd. All rights reserved.
- *********************************************************************-->
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="UTF-8" />
- <title data-i18n="resources.title_dataFlowService"></title>
- <script type="text/javascript" src="../js/include-web.js"></script>
- <script type="text/javascript" src="../../dist/ol/include-ol.js"></script>
- <style>
- .ol-popup {
- position: absolute;
- background-color: white;
- -webkit-filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.2));
- filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.2));
- padding: 15px;
- border-radius: 10px;
- border: 1px solid #cccccc;
- bottom: 12px;
- left: -50px;
- min-width: 210px;
- }
- .ol-popup:after,
- .ol-popup:before {
- top: 100%;
- border: solid transparent;
- content: " ";
- height: 0;
- width: 0;
- position: absolute;
- pointer-events: none;
- }
- .ol-popup:after {
- border-top-color: white;
- border-width: 10px;
- left: 48px;
- margin-left: -10px;
- }
- .ol-popup:before {
- border-top-color: #cccccc;
- border-width: 11px;
- left: 48px;
- margin-left: -11px;
- }
- </style>
- </head>
- <body style=" margin: 0;overflow: hidden;background: #fff;width: 100%;height:100%;position: absolute;top: 0;">
- <div id="map" style="margin:0 auto;width: 100%;height: 100%"></div>
- <div id="popup" class="ol-popup">
- <div id="popup-content"></div>
- </div>
- <script type="text/javascript">
- var container = document.getElementById("popup");
- var content = document.getElementById("popup-content");
- var overlay = new ol.Overlay({
- element: container,
- autoPan: true,
- autoPanAnimation: {
- duration: 250
- }
- });
- var resultLayer,
- urlQuery = (window.isLocal ? window.server : "https://iserver.supermap.io") + "/iserver/services/map-china400/rest/maps/China_4326",
- wsHost = "wss:\//" + (window.isLocal ? document.location.hostname + ":8800" : "iclsvrws.supermap.io");
- var urlDataFlow = wsHost + "/iserver/services/dataflowTest/dataflow";
- var timer, featureResult, dataFlowBroadcast, source;
- new ol.supermap.MapService(urlQuery).getMapInfo(function(serviceResult) {
- var mapJSONObj = serviceResult.result;
- //初始化地图
- var map = new ol.Map({
- target: "map",
- controls: ol.control
- .defaults({
- attributionOptions: {
- collapsed: false
- }
- })
- .extend([new ol.supermap.control.Logo()]),
- view: new ol.View({
- center: [116.443571, 39.887549],
- zoom: 12,
- projection: "EPSG:4326",
- multiWorld: true
- }),
- overlays: [overlay]
- });
- //添加底图
- var layer = new ol.layer.Tile({
- source: new ol.source.TileSuperMapRest(ol.source.TileSuperMapRest.optionsFromMapJSON(urlQuery, mapJSONObj))
- });
- map.addLayer(layer);
- SuperMap.SecurityManager.registerToken(urlDataFlow, window.exampleToken);
- //添加dataflow
- var source = new ol.source.DataFlow({
- ws: urlDataFlow
- });
- source.on("dataupdated", function(e) {
- var feature = e.value.data;
- content.innerHTML = feature.get("time");
- overlay.setPosition(feature.getGeometry().getCoordinates());
- });
- resultLayer = new ol.layer.Vector({
- source: source,
- style: new ol.style.Style({
- image: new ol.style.Circle({
- fill: new ol.style.Fill({
- color: "rgba(255,0,0,0.9)"
- }),
- radius: 6
- })
- })
- });
- //模拟实时数据 start
- //查询一个线数据,每两秒将一个点通过dataFlowService广播给iSevrer的dataflow服务
- query();
- function query() {
- var param = new SuperMap.QueryBySQLParameters({
- queryParams: {
- name: "Main_Road_L@China#1",
- attributeFilter: "SMID = 1755"
- }
- });
- new ol.supermap.QueryService(urlQuery).queryBySQL(param, function(serviceResult) {
- featureResult = serviceResult;
- dataFlowBroadcast = new ol.supermap.DataFlowService(urlDataFlow).initBroadcast();
- dataFlowBroadcast.on("broadcastSocketConnected", function(e) {
- timer = window.setInterval("broadcast()", 2000);
- });
- map.addLayer(resultLayer);
- });
- }
- });
- var count = 200;
- function broadcast() {
- if (count >= featureResult.result.recordsets[0].features.features[0].geometry.coordinates.length) {
- window.clearInterval(timer);
- return;
- }
- var point = featureResult.result.recordsets[0].features.features[0].geometry.coordinates[count];
- var feature = {
- geometry: {
- coordinates: [point[0], point[1]],
- type: "Point"
- },
- type: "Feature",
- properties: {
- id: 1,
- time: new Date()
- }
- };
- dataFlowBroadcast.broadcast(feature);
- count += 3;
- }
- //模拟实时数据 end
- </script>
- </body>
- </html>
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