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- <!--********************************************************************
- * Copyright© 2000 - 2021 SuperMap Software Co.Ltd. All rights reserved.
- *********************************************************************-->
- <!DOCTYPE html>
- <html lang="en-US">
- <head>
- <meta charset="UTF-8">
- <meta http-equiv="X-UA-Compatible" content="IE=Edge">
- <meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
- <title data-i18n="resources.title_graphiclayerWebgl"></title>
- <script type="text/javascript" include="randomcolor,papaparse,widgets" 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: 50px;
- }
- .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="width: 100%;height:100%"></div>
- <div id="popup" class="ol-popup">
- <div id="popup-content"></div>
- </div>
- <script type="text/javascript">
- var url = (window.isLocal ? window.server : "https://iserver.supermap.io") + "/iserver/services/map-china400/rest/maps/ChinaDark",
- container = document.getElementById('popup'),
- content = document.getElementById('popup-content'),
- overlay = new ol.Overlay(({
- element: container,
- autoPan: true,
- autoPanAnimation: {
- duration: 250
- }
- })),
- map = new ol.Map({
- target: 'map',
- controls: ol.control.defaults({attributionOptions: {collapsed: false}})
- .extend([new ol.supermap.control.Logo()]),
- view: new ol.View({
- center: ol.proj.transform([-73.9286, 40.75], 'EPSG:4326', 'EPSG:3857'),
- zoom: 12,
- projection: 'EPSG:3857',
- multiWorld: true
- }),
- overlays: [overlay]
- });
- var colorCount = 10;
- var colors = getRandomColors(colorCount);
- loadData();
- function loadData() {
- widgets.loader.showLoader();
- $.get('../data/nyc_taxi_18W.csv', function (nycData) {
- new ol.supermap.MapService(url).getMapInfo(function (serviceResult) {
- var mapJSONObj = serviceResult.result;
- var options = ol.source.TileSuperMapRest.optionsFromMapJSON(url, mapJSONObj);
- var layer = new ol.layer.Tile({
- source: new ol.source.TileSuperMapRest(options)
- });
- map.addLayer(layer);
- var randomCircleStyles = [];
- for (var i = 0; i < colorCount; i++) {
- randomCircleStyles.push(new ol.style.Circle({
- radius: Math.floor(Math.random() * 3 + 1),
- fill: new ol.style.Fill({
- color: colors[i]
- }),
- stroke: new ol.style.Stroke({
- color: colors[i]
- }),
- }));
- }
- var features = Papa.parse(nycData, {skipEmptyLines: true, header: true}).data;
- var count = features.length; //矢量点的个数
- var graphics = new Array(count);
- for (var i = 0; i < count; ++i) {
- var coordinates = [Number(features[i].X), Number(features[i].Y)];
- if (coordinates[0] === coordinates[1]) {
- continue;
- }
- coordinates = ol.proj.transform(coordinates, 'EPSG:4326', 'EPSG:3857');
- graphics[i] = new ol.Graphic(new ol.geom.Point(coordinates));
- graphics[i].setStyle(randomCircleStyles[Math.floor(Math.random() * colorCount)]);
- }
- map.once('postrender', function () {
- var graphicLayer = new ol.layer.Image({
- source: new ol.source.Graphic({
- graphics: graphics,
- render: "canvas",
- map: map,
- onClick: function (graphic) {
- if (graphic) {
- var coords = graphic.getGeometry().getCoordinates();
- content.innerHTML = resources.text_coordinate + ":[" + coords[0] + "," + coords[1] + "]";
- overlay.setPosition(graphic.getGeometry().getCoordinates());
- return;
- }
- overlay.setPosition(undefined);
- }
- })
- });
- map.addLayer(graphicLayer);
- widgets.loader.removeLoader();
- })
- });
- });
- }
- function getRandomColors(count) {
- return randomColor({
- luminosity: 'bright',
- hue: 'random',
- alpha: 0.5,
- format: 'rgba',
- count: count
- });
- }
- </script>
- </body>
- </html>
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