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- <!--********************************************************************
- * Copyright© 2000 - 2021 SuperMap Software Co.Ltd. All rights reserved.
- *********************************************************************-->
- <!DOCTYPE html>
- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
- <title data-i18n="resources.title_eChartGraphBar"></title>
- <style type="text/css">
- .arc path {
- stroke: #fff;
- }
- </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" include="bootstrap" src="../js/include-web.js"></script>
- <script type="text/javascript" exclude="iclient-classic" include="echarts-all"
- src="../../dist/classic/include-classic.js"></script>
- <script type="text/javascript">
- var map, layer, utfgrid, control, chartLayer,
- host = window.isLocal ? window.server : "https://iserver.supermap.io",
- url = host + "/iserver/services/map-china400/rest/maps/China";
- var pieChartDom;
- var elementsDiv;
- var isMapMoving = false;
- function init() {
- map = new SuperMap.Map("map", {
- controls: [
- new SuperMap.Control.ScaleLine(),
- new SuperMap.Control.Zoom(),
- new SuperMap.Control.LayerSwitcher(),
- new SuperMap.Control.Navigation({
- dragPanOptions: {
- enableKinetic: true
- }
- })],
- projection: "EPSG:3857"
- });
- //地图移动过程中不显示图表
- map.events.on({
- "movestart": function () {
- document.getElementById("piechart").innerHTML = "";
- pieChartDom.style.display = "none";
- isMapMoving = true;
- }
- });
- map.events.on({
- "moveend": function () {
- isMapMoving = false;
- }
- });
- //基础图层
- layer = new SuperMap.Layer.TiledDynamicRESTLayer("China", url, {transparent: true}, {
- useCanvas: true,
- maxResolution: "auto"
- });
- //创建 Elements 图层,用于显示饼图
- chartLayer = new SuperMap.Layer.Elements("eCharts");
- //获取 Elements 图层 div
- elementsDiv = chartLayer.getDiv();
- //设置Elements实例的div为地图大小
- var mapsize = map.getSize();
- elementsDiv.style.width = mapsize.w;
- elementsDiv.style.height = mapsize.h;
- //创建图表 div, 设置其基本属性, 并添加到 Elements 图层
- pieChartDom = document.createElement("div");
- pieChartDom.id = "piechart";
- pieChartDom.style.width = "400px";
- pieChartDom.style.height = "240px";
- pieChartDom.style.position = "absolute";
- pieChartDom.style.opacity = 0.8;
- elementsDiv.appendChild(pieChartDom);
- //创建 UTFGrid 图层,用于获取饼图所需信息
- utfgrid = new SuperMap.Layer.UTFGrid("UTFGridLayer", url,
- {
- layerName: "China_Province_pl@China",
- utfTileSize: 256,
- pixcell: 8,
- isUseCache: true
- },
- {
- utfgridResolution: 8
- });
- layer.events.on({"layerInitialized": addLayer});
- control = new SuperMap.Control.UTFGrid({
- layers: [utfgrid],
- callback: callback,
- handlerMode: "move"
- });
- map.addControl(control);
- }
- $(document).ready(function () {
- init();
- });
- // 鼠标移动中仍保持在同一个数据上
- var isOneData = "";
- var theDataCache;
- // 相同数据检测
- var callback = function (infoLookup, loc, pixel) {
- if (infoLookup && isMapMoving === false) {
- var info;
- for (var idx in infoLookup) {
- info = infoLookup[idx];
- if (info && info.data) {
- document.getElementById("piechart").innerHTML = "";
- pieChartDom.style.display = "block";
- // 基于准备好的dom,初始化echarts图表
- var myChart = echarts.init(pieChartDom);
- var thedata;
- if (isOneData != info.data.SMID) {
- // 数据(随机生成)
- thedata = [
- getRandomNumber(0, 1000, 0),
- getRandomNumber(0, 1000, 0),
- getRandomNumber(0, 1000, 0),
- getRandomNumber(0, 1000, 0),
- getRandomNumber(0, 1000, 0),
- getRandomNumber(0, 1000, 0)
- ];
- isOneData = info.data.SMID
- }
- else {
- thedata = theDataCache;
- }
- theDataCache = thedata;
- // echart 图表配置参数
- var option = {
- tooltip: {
- show: true
- },
- title: {
- x: "center",
- text: resources.text_salesVolume1 + info.data.NAME + resources.text_salesVolume2
- },
- xAxis: [
- {
- type: 'category',
- data: [resources.text_productA, resources.text_productB, resources.text_productC, resources.text_productD, resources.text_productE, resources.text_productF]
- }
- ],
- yAxis: [
- {
- type: 'value'
- }
- ],
- series: [
- {
- "name": "销量",
- "type": "bar",
- "data": thedata
- }
- ]
- };
- // 为echarts对象加载数据
- myChart.setOption(option);
- // 图表位置
- pieChartDom.style.left = (pixel.x + 20) + "px";
- pieChartDom.style.top = (pixel.y - 20) + "px";
- // 图表背景颜色
- pieChartDom.style.backgroundColor = "#F4F3F0";
- }
- else {
- //清除饼图
- document.getElementById("piechart").innerHTML = "";
- pieChartDom.style.display = "none";
- }
- }
- }
- };
- // 获取指定范围内的随机数
- // min - 范围下限
- // max - 范围上限
- // decimalNum - 返回结果的小数位数。如果为 0,返回整数。
- function getRandomNumber(min, max, decimalNum) {
- var rNum = min + Math.random() * (max - min);
- if (decimalNum) {
- if (!isNaN(decimalNum)) {
- return rNum;
- }
- else {
- decimalNum = parseInt(decimalNum);
- }
- if (decimalNum === 0) {
- return Math.round(rNum);
- }
- else {
- return parseFloat(rNum).toFixed(decimalNum);
- }
- }
- else {
- return rNum;
- }
- }
- //添加图层
- function addLayer() {
- var center = new SuperMap.LonLat(9733502.481499, 4614406.969325);
- map.addLayers([layer, chartLayer, utfgrid]);
- map.setCenter(center, 4);
- }
- </script>
- </body>
- </html>
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