ECharts 3.0 初學感想及學習中遇到的瓶頸

時間 2019-11-07

標籤 echarts 3.0 初學感想學習遇到瓶頸简体版

原文原文鏈接

由於剛工做的緣由，壓力特別大，加上時間也不是很充足，因此最近也沒怎麼整理學習的東西，今天趁着手頭工做完成總結一下吧，javascript

說實話，其實ECharts 就是圖表絢麗，展現數據渲染效果更增強烈，從2.0到3.0作得更加精緻，很少比比，正題html

首先你想使用必需要引入js/json文件，最主要的文件是 echarts.js 這個能夠到官網下載完整版就好：http://echarts.baidu.com/download.html java

以後直接在頁面引用就能夠，要注意存放路徑，要用 UTF-8 編碼json

<script src="echartsmain.js"></script>

餅圖/柱圖這些就不說了，由於boss給的任務是地圖，就直接說地圖吧echarts

接下來要引入地圖文件，我用的是js格式，固然也能夠引入json格式，dom

這裏先說一下地圖從哪裏下載：http://echarts.baidu.com/download-map.htmljsp

js格式導入（這裏我用的是山東省的，並不須要引入全國的）學習

<!-- <script src="china.js"></script> -->
<script src="shandong1.js"></script>

json格式的引入測試

<script type="text/javascript">
    //function(省份拼音+Json)
    $.get('map/json/china.json', function(gansuJson) {
        //echarts.registerMap('省份漢語名稱', 省份拼音+Json);
        echarts.registerMap('甘肅', gansuJson);
        var chart = echarts.init(document.getElementById('main'));
        chart.setOption({
            series : [ {
            type : 'map',
            //map的值也是，省份漢語名稱
            map : '甘肅'
            } ]
        });
    });
<script>

要想有地方把圖表/地圖展現出來，那確定要有地方來呈現吧，定義一個dom編碼

<div id="main" style="width: 40%;height:400px;float:left;"></div>

這裏 id 是啥其實無所謂的，只是官網（http://echarts.baidu.com/index.html）用的這個 main ，看完教程（http://echarts.baidu.com/tutorial.html）後，

　　就以爲仍是 main 更舒服一點

基於準備好的dom，初始化echarts實例

var myChart = echarts.init(document.getElementById('main'));

還有一點要注意的地方

　　在option設置對應的map屬性：中國地圖用china/省市地圖直接用漢語,如山東省用山東

其餘的就沒有什麼要特別注意的地方了，下面是代碼

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ include file="/framework/include/pageset.jspa"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>

<title>跳轉頁面</title>
<script src="echartsmain.js"></script>
<!-- <script src="china.js"></script> -->
<script src="shandong1.js"></script>
</head>
<body>
     <!-- 爲ECharts準備一個具有大小（寬高）的Dom -->

    <div id="main" style="width: 40%;height:400px;float:left;"></div>
        <!-- IFRAME 窗體引入 -->
        <!-- <IFRAME NAME="content_frame" width=59%; height=400px; SRC="air/doc/example/air.html" ></IFRAME> 
        <IFRAME NAME="content_frame" width=25%; height=360px; SRC="index4.html" ></IFRAME> 
        <IFRAME NAME="content_frame" width=24%; height=360px; SRC="index4.html" ></IFRAME> 
        <IFRAME NAME="content_frame" width=24%; height=360px; SRC="index4.html" ></IFRAME>
        <IFRAME NAME="content_frame" width=24%; height=360px; SRC="index4.html" ></IFRAME>
 -->
 
 <!-- 
         1.首先引入要用的js/json文件
         2.在option設置對應的map屬性：中國地圖用china/省市地圖直接用漢語,如山東省用山東
         3.定義一個Map來容納城市座標
         
         //還有不少目前沒有搞明白
         
         <- 存在問題 ->
         1.城市名稱不顯示
         2.背景單調不絢麗
         
         <- 個性化 ->
         1.若是地圖上結合其餘圖表/地圖效果
         
      -->
 
    <script type="text/javascript">

        // 基於準備好的dom，初始化echarts實例
        var myChart = echarts.init(document.getElementById('main'));

         var geoCoordMap = {
    /* '上海': [121.4648,31.2891],
    '東莞': [113.8953,22.901], */
    '東營': [118.7073,37.5513],
    /* '中山': [113.4229,22.478],
    '臨汾': [111.4783,36.1615], */
    '臨沂': [118.3118,35.2936],
    /* '丹東': [124.541,40.4242],
    '麗水': [119.5642,28.1854],
    '烏魯木齊': [87.9236,43.5883],
    '佛山': [112.8955,23.1097],
    '保定': [115.0488,39.0948],
    '蘭州': [103.5901,36.3043],
    '包頭': [110.3467,41.4899],
    '北京': [116.4551,40.2539],
    '北海': [109.314,21.6211],
    '南京': [118.8062,31.9208],
    '南寧': [108.479,23.1152],
    '南昌': [116.0046,28.6633],
    '南通': [121.1023,32.1625],
    '廈門': [118.1689,24.6478],
    '台州': [121.1353,28.6688],
    '合肥': [117.29,32.0581],
    '呼和浩特': [111.4124,40.4901],
    '咸陽': [108.4131,34.8706],
    '哈爾濱': [127.9688,45.368],
    '唐山': [118.4766,39.6826],
    '嘉興': [120.9155,30.6354],
    '大同': [113.7854,39.8035],
    '大連': [122.2229,39.4409],
    '天津': [117.4219,39.4189],
    '太原': [112.3352,37.9413], */
    '威海': [121.9482,37.1393],
    /* '寧波': [121.5967,29.6466],
    '寶雞': [107.1826,34.3433],
    '宿遷': [118.5535,33.7775],
    '常州': [119.4543,31.5582],
    '廣州': [113.5107,23.2196],
    '廊坊': [116.521,39.0509],
    '延安': [109.1052,36.4252],
    '張家口': [115.1477,40.8527],
    '徐州': [117.5208,34.3268],
    '德州': [116.6858,37.2107],
    '惠州': [114.6204,23.1647],
    '成都': [103.9526,30.7617],
    '揚州': [119.4653,32.8162],
    '承德': [117.5757,41.4075],
    '拉薩': [91.1865,30.1465],
    '無錫': [120.3442,31.5527], */
    '日照': [119.2786,35.5023],
    /* '昆明': [102.9199,25.4663],
    '杭州': [119.5313,29.8773], */
    '棗莊': [117.323,34.8926],
    /* '柳州': [109.3799,24.9774],
    '株洲': [113.5327,27.0319],
    '武漢': [114.3896,30.6628],
    '汕頭': [117.1692,23.3405],
    '江門': [112.6318,22.1484],
    '瀋陽': [123.1238,42.1216],
    '滄州': [116.8286,38.2104],
    '河源': [114.917,23.9722],
    '泉州': [118.3228,25.1147], */
    '泰安': [117.0264,36.0516],
    /* '泰州': [120.0586,32.5525], */
    '濟南': [117.1582,36.8701],
    '濟寧': [116.8286,35.3375],
    /* '海口': [110.3893,19.8516], */
    '淄博': [118.0371,36.6064],
    /* '淮安': [118.927,33.4039],
    '深圳': [114.5435,22.5439],
    '清遠': [112.9175,24.3292],
    '溫州': [120.498,27.8119],
    '渭南': [109.7864,35.0299],
    '湖州': [119.8608,30.7782],
    '湘潭': [112.5439,27.7075], */
    '濱州': [117.8174,37.4963],
    '濰坊': [119.0918,36.524],
    '煙臺': [120.7397,37.5128],
   /*  '玉溪': [101.9312,23.8898],
    '珠海': [113.7305,22.1155],
    '鹽城': [120.2234,33.5577],
    '盤錦': [121.9482,41.0449],
    '石家莊': [114.4995,38.1006],
    '福州': [119.4543,25.9222],
    '秦皇島': [119.2126,40.0232],
    '紹興': [120.564,29.7565], */
    '聊城': [115.9167,36.4032],
    /* '肇慶': [112.1265,23.5822],
    '舟山': [122.2559,30.2234],
    '蘇州': [120.6519,31.3989], */
    '萊蕪': [117.6526,36.2714],
    '菏澤': [115.6201,35.2057],
    /* '營口': [122.4316,40.4297],
    '葫蘆島': [120.1575,40.578],
    '衡水': [115.8838,37.7161],
    '衢州': [118.6853,28.8666],
    '西寧': [101.4038,36.8207],
    '西安': [109.1162,34.2004],
    '貴陽': [106.6992,26.7682],
    '連雲港': [119.1248,34.552],
    '邢臺': [114.8071,37.2821],
    '邯鄲': [114.4775,36.535],
    '鄭州': [113.4668,34.6234],
    '鄂爾多斯': [108.9734,39.2487],
    '重慶': [107.7539,30.1904],
    '金華': [120.0037,29.1028],
    '銅川': [109.0393,35.1947],
    '銀川': [106.3586,38.1775],
    '鎮江': [119.4763,31.9702],
    '長春': [125.8154,44.2584],
    '長沙': [113.0823,28.2568],
    '長治': [112.8625,36.4746],
    '陽泉': [113.4778,38.0951], */
    '青島': [120.4651,36.3373]
    /* '韶關': [113.7964,24.7028] */
};

/* 定義三個切換按鈕運行航線/最好造成循環,是否必須暫時還不肯定 */         
var JNData = [
    [{name:'濟南',value:120,img:'flag2.png'}, {name:'淄博',value:120,img:'flag2.png'}],
    [{name:'淄博',value:120,img:'flag2.png'}, {name:'青島',value:120,img:'flag2.png'}],
    [{name:'青島',value:120,img:'flag2.png'}, {name:'濟南',value:120,img:'flag2.png'}]
];

var QDData = [
    [{name:'濟南',value:120,img:'flag2.png'}, {name:'煙臺',value:120,img:'flag2.png'}],
    [{name:'煙臺',value:120,img:'flag2.png'}, {name:'威海',value:120,img:'flag2.png'}],
    [{name:'威海',value:120,img:'flag2.png'}, {name:'青島',value:120,img:'flag2.png'}],
    [{name:'青島',value:120,img:'flag2.png'}, {name:'濟南',value:120,img:'flag2.png'}],
];

var ZBData = [
    [{name:'菏澤',value:120,img:'flag2.png'}, {name:'淄博',value:120,img:'flag2.png'}],
    [{name:'淄博',value:120,img:'flag2.png'}, {name:'萊蕪',value:120,img:'flag2.png'}],
    [{name:'萊蕪',value:120,img:'flag2.png'}, {name:'濟寧',value:120,img:'flag2.png'}],
    [{name:'濟寧',value:120,img:'flag2.png'}, {name:'菏澤',value:120,img:'flag2.png'}],
];

/* 應該是航線座標啥的,測試了一次感受並不須要改動 */
var planePath = 'path://M1705.06,1318.313v-89.254l-319.9-221.799l0.073-208.063c0.521-84.662-26.629-121.796-63.961-121.491c-37.332-0.305-64.482,36.829-63.961,121.491l0.073,208.063l-319.9,221.799v89.254l330.343-157.288l12.238,241.308l-134.449,92.931l0.531,42.034l175.125-42.917l175.125,42.917l0.531-42.034l-134.449-92.931l12.238-241.308L1705.06,1318.313z';

var convertData = function (data) {
    var res = [];
    for (var i = 0; i < data.length; i++) {
        var dataItem = data[i];
        var fromCoord = geoCoordMap[dataItem[0].name];
        var toCoord = geoCoordMap[dataItem[1].name];
        if (fromCoord && toCoord) {
            res.push({
                fromName: dataItem[0].name,
                toName: dataItem[1].name,
                coords: [fromCoord, toCoord],
                symbol:'image://' + dataItem[0].img
            });
        }
    }
    return res;
};

var color = ['#a6c84c', '#ffa022', '#46bee9'];
var series = [];
[['濟南', JNData], ['青島', QDData], ['淄博', ZBData]].forEach(function (item, i) {
    series.push({
        name: item[0],
        type: 'lines',
        zlevel: 1,
        effect: {
            show: true,
            period: 6,
            trailLength: 0.7,
            color: '#fff',
            symbolSize: 3
        },
        lineStyle: {
            normal: {
                color: color[i],
                width: 0,
                curveness: 0.2
            }
        },
        data: convertData(item[1])
    },
    {
        name: item[0],
        type: 'lines',
        zlevel: 2,
        effect: {
            show: true,
            period: 6,
            trailLength: 0,
            symbol: planePath,

        },
        lineStyle: {
            normal: {
                color: color[i],
                width: 1,
                opacity: 0.4,
                curveness: 0.2
            }
        },
        data: convertData(item[1])
    },
    {
        name: item[0],
        type: 'scatter',
        coordinateSystem: 'geo',
        zlevel: 2,
        rippleEffect: {
            brushType: 'stroke'
        },
        label: {
            normal: {
                show: true,
                position: 'right',
                formatter: '{b}'
            }
        },
        symbolSize: function (val) {
            return val[2] / 8;
        },
        itemStyle: {
            normal: {
                color: color[i]
            }
        },

        data: item[1].map(function (dataItem) {
            return {
                name: dataItem[1].name,//
                value: geoCoordMap[dataItem[1].name].concat([dataItem[1].value]),
                 symbol: 'image://' + dataItem[1].img
            };
        })

    });
});
[['濟南', JNData], ['青島', QDData], ['淄博', ZBData]].forEach(function (item, i) {
    series.push({
        name: item[0],
        type: 'lines',
        zlevel: 1,
        effect: {
            show: true,
            period: 6,
            trailLength: 0.7,
            color: '#fff',
            symbolSize: 3
        },
        lineStyle: {
            normal: {
                color: color[i],
                width: 0,
                curveness: 0.2
            }
        },
        data: convertData(item[1])
    },
    {
        name: item[0],
        type: 'lines',
        zlevel: 2,
        effect: {
            show: true,
            period: 6,
            trailLength: 0,
            symbol: planePath,
            symbolSize: 15
        },

        lineStyle: {
            normal: {
                color: color[i],
                width: 1,
                opacity: 0.4,
                curveness: 0.2
            }
        },
        data: convertData(item[1])
    },
    {
        name: item[0],
        type: 'scatter',
        coordinateSystem: 'geo',
        zlevel: 2,
        rippleEffect: {
            brushType: 'stroke'
        },
        label: {
            normal: {
                show: true,
                position: 'right',
                formatter: '{b}'
            }
        },
        symbolSize: function (val) {
            return val[2] / 8;
        },
        itemStyle: {
            normal: {
                color: color[i]
            }
        },

        data: item[1].map(function (dataItem) {
            return {
                name: dataItem[1].name,
                value: geoCoordMap[dataItem[1].name].concat([dataItem[1].value]),
                 symbol: 'image://' + dataItem[0].img
            };
        })

    });
});

option = {
    backgroundColor: '#404a59',
    title : {
        text: '行程圖',
        left: 'center',
        textStyle : {
            color: '#fff'
        }
    },
    tooltip : {
        trigger: 'item'
    },

    legend: {
        orient: 'vertical',
        top: 'bottom',
        left: 'right',
        data:['濟南', '青島', '淄博'],//定義左下角切換按鈕
        textStyle: {
            color: '#fff'
        },
        selectedMode: 'single'
    },
    geo: {
        map: '山東',//省份地圖用漢語去掉省/全國地圖用china
        label: {
            emphasis: {
                show: false
            }
        },
        roam: false,
        itemStyle: {
            normal: {
                areaColor: '#323c48',
                borderColor: '#404a59'
            },
            emphasis: {
                areaColor: '#2a333d'
            }
        }
    },

    series: series
};

        // 使用剛指定的配置項和數據顯示圖表。

        myChart.setOption(option);

    </script>
                
</body>
</html>