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- <!--********************************************************************
- * Copyright© 2000 - 2021 SuperMap Software Co.Ltd. All rights reserved.
- *********************************************************************-->
- <!DOCTYPE html>
- <html>
- <head>
- <title data-i18n="resources.title_graphicLayer"></title>
- <script type="text/javascript" include="randomcolor,papaparse,widgets" src="../js/include-web.js"></script>
- </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/leaflet/include-leaflet.js"></script>
- <script type="text/javascript">
- var host = window.isLocal ? window.server : "https://iserver.supermap.io";
- var map;
- map = L.map('map', {
- preferCanvas: true,
- center: [40.74650, -73.89109999999999],
- maxZoom: 18,
- zoom: 12
- });
- var url = host + "/iserver/services/map-china400/rest/maps/ChinaDark";
- L.supermap.tiledMapLayer(url).addTo(map);
- var colorCount = 10;
- var colors = getRandomColors(colorCount);
- addGraphicLayer();
- function addGraphicLayer() {
- widgets.loader.showLoader();
- $.get('../data/nyc_taxi_18W.csv', function (nycData) {
- var features = Papa.parse(nycData, {skipEmptyLines: true, header: true}).data;
- var count = features.length;
- var graphics = [];
- var circleStyles = [];
- //创建圆的样式
- for (var i = 0; i < colorCount; i++) {
- circleStyles.push(L.supermap.circleStyle({
- color: colors[i],
- opacity: 1,
- radius: Math.floor(Math.random() * 3 + 1),
- fill: true,
- fillColor: colors[i],
- fillOpacity: 1
- }));
- }
- //设置每个点的经纬度和传入圆的样式
- for (var i = 0; i < count; ++i) {
- var coordinates = [Number(features[i].X), Number(features[i].Y)];
- if (coordinates[0] === coordinates[1]) {
- continue;
- }
- graphics[i] = L.supermap.graphic({
- latLng: L.latLng(coordinates[1], coordinates[0]),
- style: circleStyles[Math.floor(Math.random() * colorCount)].getStyle()
- });
- }
- //绘制图层
- L.supermap.graphicLayer(graphics, {
- render: "canvas",
- onClick: function (graphic) {
- L.popup().setLatLng(graphic.getLatLng())
- .setContent('<p>' + resources.text_latLng + ':<br>' + graphic.getLatLng().lng + ',<br>' + graphic.getLatLng().lat + '</p>')
- .openOn(map);
- }
- }).addTo(map);
- widgets.loader.removeLoader();
- })
- }
- //生成随机颜色
- function getRandomColors(count) {
- return randomColor({
- luminosity: 'bright',
- hue: 'random',
- alpha: 0.5,
- format: 'rgba',
- count: count
- });
- }
- </script>
- </body>
- </html>
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