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<!--********************************************************************
* Copyright© 2000 - 2024 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>
<style>
.mapboxgl-popup {
max-width: 200px;
}
.mapboxgl-popup-close-button {
outline: none;
}
</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>
<script type="text/javascript" src="../../dist/mapboxgl/include-mapboxgl.js"></script>
<script>
var host = (window.isLocal ? window.server : "https://iserver.supermap.io"),
tileUrl = host +
'/iserver/services/map-china400/rest/maps/China/zxyTileImage.png?prjCoordSys=' + encodeURIComponent('{"epsgCode":3857}') + '&z={z}&x={x}&y={y}',
urlQuery = host + "/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 attribution = "<a href='https://www.mapbox.com/about/maps/' target='_blank'>© Mapbox </a>" +
" with <span>© <a href='https://iclient.supermap.io' target='_blank'>SuperMap iClient</a> | </span>" +
" Map Data <span>© <a href='http://support.supermap.com.cn/product/iServer.aspx' target='_blank'>SuperMap iServer</a></span> ";
var dataFlowService;
var map = new mapboxgl.Map({
container: 'map',
style: {
"version": 8,
"sources": {
"raster-tiles": {
"attribution": attribution,
"type": "raster",
"tiles": [tileUrl],
"tileSize": 256,
},
},
"layers": [{
"id": "simple-tiles",
"type": "raster",
"source": "raster-tiles",
"minzoom": 0,
"maxzoom": 18
}],
},
center: [116.443571, 39.887549],
maxZoom: 18,
zoom: 10
});
map.addControl(new mapboxgl.supermap.LogoControl({ link: "https://iclient.supermap.io" }), 'bottom-right');
map.addControl(new mapboxgl.NavigationControl(), 'top-left');
mapboxgl.supermap.SecurityManager.registerToken(urlDataFlow, window.exampleToken);
var popup = new mapboxgl.Popup({
focusAfterOpen: false
});
map.on('load', function () {
var options = {
ws: urlDataFlow
};
var dataFlowSubscribe = new mapboxgl.supermap.DataFlowService(options.ws, {
geometry: options.geometry,
prjCoordSys: options.prjCoordSys,
excludeField: options.excludeField
}).initSubscribe();
dataFlowSubscribe.on('messageSucceeded', function (msg) {
popup.remove();
addLayer(msg);
});
query();
});
//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
function query() {
var param = new mapboxgl.supermap.QueryBySQLParameters({
queryParams: {
name: "Main_Road_L@China#1",
attributeFilter: "SMID = 1755"
}
});
queryService = new mapboxgl.supermap.QueryService(urlQuery).queryBySQL(param).then(function (serviceResult) {
featureResult = serviceResult;
dataFlowBroadcast = new mapboxgl.supermap.DataFlowService(urlDataFlow).initBroadcast();
dataFlowBroadcast.on('broadcastSocketConnected', function (e) {
timer = window.setInterval("broadcast()", 2000);
});
});
}
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;
}
function addLayer(msg) {
if (!msg.featureResult) {
return;
}
var feature = msg.featureResult;
var coord = feature.geometry.coordinates;
var data = {
geometry: {
type: 'Point',
coordinates: coord,
},
type: "Feature"
};
if (!map.getSource('location')) {
map.addSource('location', {
'type': 'geojson',
'data': data
});
map.addLayer({
"id": "point",
"type": "circle",
"paint": {
"circle-radius": 6,
"circle-color": 'red',
},
"source": 'location'
});
}
map.getSource('location').setData(data);
popup.setLngLat(coord)
.setHTML(feature.properties.time)
.addTo(map);
}
//模拟实时数据 end
</script>
</body>
</html>