利用ECharts.js畫K線圖的方法示例

來源：懂視網(wǎng) 責(zé)編：小采時(shí)間：2020-11-27 22:21:57

利用ECharts.js畫K線圖的方法示例

利用ECharts.js畫K線圖的方法示例:前言最近有一個(gè)統(tǒng)計(jì)的項(xiàng)目要做，在前端的數(shù)據(jù)需要用圖表的形式展示。網(wǎng)上搜索了一下，發(fā)現(xiàn)有幾種統(tǒng)計(jì)圖庫。 MSChart 這個(gè)是Visual Studio里的自帶控件，使用比較簡(jiǎn)單，不過數(shù)據(jù)這塊需要在后臺(tái)綁定。 ichartjs 是一款基于HTML5的圖形庫。使用純javas

推薦度：

點(diǎn)擊下載本文 文檔為doc格式

導(dǎo)讀利用ECharts.js畫K線圖的方法示例:前言最近有一個(gè)統(tǒng)計(jì)的項(xiàng)目要做，在前端的數(shù)據(jù)需要用圖表的形式展示。網(wǎng)上搜索了一下，發(fā)現(xiàn)有幾種統(tǒng)計(jì)圖庫。 MSChart 這個(gè)是Visual Studio里的自帶控件，使用比較簡(jiǎn)單，不過數(shù)據(jù)這塊需要在后臺(tái)綁定。 ichartjs 是一款基于HTML5的圖形庫。使用純javas

前言

最近有一個(gè)統(tǒng)計(jì)的項(xiàng)目要做，在前端的數(shù)據(jù)需要用圖表的形式展示。網(wǎng)上搜索了一下，發(fā)現(xiàn)有幾種統(tǒng)計(jì)圖庫。

MSChart

這個(gè)是Visual Studio里的自帶控件，使用比較簡(jiǎn)單，不過數(shù)據(jù)這塊需要在后臺(tái)綁定。

ichartjs

是一款基于HTML5的圖形庫。使用純javascript語言, 利用HTML5的canvas標(biāo)簽繪制各式圖形。支持餅圖、環(huán)形圖、折線圖、面積圖、柱形圖、條形圖等。

Chart.js

也是一款基于HTML5的圖形庫和ichartjs整體類似。不過Chart.js的教程文檔沒有ichartjs的詳細(xì)。不過感覺在對(duì)于移動(dòng)的適配上感覺比ichartjs要好一點(diǎn)。

ECharts.js

這是我準(zhǔn)備在這個(gè)項(xiàng)目中使用的圖形庫，這也是一款基于HTML5的圖形庫。圖形的創(chuàng)建也比較簡(jiǎn)單，直接引用Javascript即可。使用這個(gè)庫的原因主要有三點(diǎn)，一個(gè)是因?yàn)檫@個(gè)庫是百度的項(xiàng)目，而且一直有更新，目前最新的是EChart 3；第二個(gè)是這個(gè)庫的項(xiàng)目文檔比較詳細(xì)，每個(gè)點(diǎn)都說明的比較清楚，而且是中文的，理解比較容易；第三點(diǎn)是這個(gè)庫支持的圖形很豐富，并且可以直接切換圖形，使用起來很方便。

準(zhǔn)備工作：

需引入echarts.js插件，開發(fā)環(huán)境建議選擇源代碼版本，該版本包含了常見的警告和錯(cuò)誤提示。

官網(wǎng)下載地址： http://echarts.baidu.com/download.html

最新版本下載：//www.gxlcms.com/codes/262041.html

更多用法可以參考這篇文章：//www.gxlcms.com/article/120902.htm

下面是代碼，注釋很清楚，主要是js代碼，可根據(jù)項(xiàng)目進(jìn)行增刪！

配置項(xiàng)說明： http://echarts.baidu.com/option.html#title

示例代碼

<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8">
 <title>5分鐘上手ECharts</title>
 <!-- 引入ECharts文件 -->
 <script type="text/javascript" src="./echarts.js"></script>
</head>
<body>
 <!-- 為ECharts準(zhǔn)備一個(gè)具備大小（寬高）的DOM -->
 <div id="main" style="width: 1200px; height: 600px;"></div> 
<!-- js代碼 -->
 <script type="text/javascript">

 /*基于準(zhǔn)備好的dom，初始化echarts實(shí)例*/
 var myChart = echarts.init(document.getElementById('main'));

 // 數(shù)據(jù)意義：開盤(open)，收盤(close)，最低(lowest)，最高(highest)
 var data0 = splitData([
 ['2013/1/24', 2320.26,2320.26,2287.3,2362.94],
 ['2013/1/25', 2300,2291.3,2288.26,2308.38],
 ['2013/1/28', 2295.35,2346.5,2295.35,2346.92],
 ['2013/1/29', 2347.22,2358.98,2337.35,2363.8],
 ['2013/1/30', 2360.75,2382.48,2347.89,2383.76],
 ['2013/1/31', 2383.43,2385.42,2371.23,2391.82],
 ['2013/2/1', 2377.41,2419.02,2369.57,2421.15],
 ['2013/2/4', 2425.92,2428.15,2417.58,2440.38],
 ['2013/2/5', 2411,2433.13,2403.3,2437.42],
 ['2013/2/6', 2432.68,2434.48,2427.7,2441.73],
 ['2013/2/7', 2430.69,2418.53,2394.22,2433.89],
 ['2013/2/8', 2416.62,2432.4,2414.4,2443.03],
 ['2013/2/18', 2441.91,2421.56,2415.43,2444.8],
 ['2013/2/19', 2420.26,2382.91,2373.53,2427.07],
 ['2013/2/20', 2383.49,2397.18,2370.61,2397.94],
 ['2013/2/21', 2378.82,2325.95,2309.17,2378.82],
 ['2013/2/22', 2322.94,2314.16,2308.76,2330.88],
 ['2013/2/25', 2320.62,2325.82,2315.01,2338.78],
 ['2013/2/26', 2313.74,2293.34,2289.89,2340.71],
 ['2013/2/27', 2297.77,2313.22,2292.03,2324.63],
 ['2013/2/28', 2322.32,2365.59,2308.92,2366.16],
 ['2013/3/1', 2364.54,2359.51,2330.86,2369.65],
 ['2013/3/4', 2332.08,2273.4,2259.25,2333.54],
 ['2013/3/5', 2274.81,2326.31,2270.1,2328.14],
 ['2013/3/6', 2333.61,2347.18,2321.6,2351.44],
 ['2013/3/7', 2340.44,2324.29,2304.27,2352.02],
 ['2013/3/8', 2326.42,2318.61,2314.59,2333.67],
 ['2013/3/11', 2314.68,2310.59,2296.58,2320.96],
 ['2013/3/12', 2309.16,2286.6,2264.83,2333.29],
 ['2013/3/13', 2282.17,2263.97,2253.25,2286.33],
 ['2013/3/14', 2255.77,2270.28,2253.31,2276.22],
 ['2013/3/15', 2269.31,2278.4,2250,2312.08],
 ['2013/3/18', 2267.29,2240.02,2239.21,2276.05],
 ['2013/3/19', 2244.26,2257.43,2232.02,2261.31],
 ['2013/3/20', 2257.74,2317.37,2257.42,2317.86],
 ['2013/3/21', 2318.21,2324.24,2311.6,2330.81],
 ['2013/3/22', 2321.4,2328.28,2314.97,2332],
 ['2013/3/25', 2334.74,2326.72,2319.91,2344.89],
 ['2013/3/26', 2318.58,2297.67,2281.12,2319.99],
 ['2013/3/27', 2299.38,2301.26,2289,2323.48],
 ['2013/3/28', 2273.55,2236.3,2232.91,2273.55],
 ['2013/3/29', 2238.49,2236.62,2228.81,2246.87],
 ['2013/4/1', 2229.46,2234.4,2227.31,2243.95],
 ['2013/4/2', 2234.9,2227.74,2220.44,2253.42],
 ['2013/4/3', 2232.69,2225.29,2217.25,2241.34],
 ['2013/4/8', 2196.24,2211.59,2180.67,2212.59],
 ['2013/4/9', 2215.47,2225.77,2215.47,2234.73],
 ['2013/4/10', 2224.93,2226.13,2212.56,2233.04],
 ['2013/4/11', 2236.98,2219.55,2217.26,2242.48],
 ['2013/4/12', 2218.09,2206.78,2204.44,2226.26],
 ['2013/4/15', 2199.91,2181.94,2177.39,2204.99],
 ['2013/4/16', 2169.63,2194.85,2165.78,2196.43],
 ['2013/4/17', 2195.03,2193.8,2178.47,2197.51],
 ['2013/4/18', 2181.82,2197.6,2175.44,2206.03],
 ['2013/4/19', 2201.12,2244.64,2200.58,2250.11],
 ['2013/4/22', 2236.4,2242.17,2232.26,2245.12],
 ['2013/4/23', 2242.62,2184.54,2182.81,2242.62],
 ['2013/4/24', 2187.35,2218.32,2184.11,2226.12],
 ['2013/4/25', 2213.19,2199.31,2191.85,2224.63],
 ['2013/4/26', 2203.89,2177.91,2173.86,2210.58],
 ['2013/5/2', 2170.78,2174.12,2161.14,2179.65],
 ['2013/5/3', 2179.05,2205.5,2179.05,2222.81],
 ['2013/5/6', 2212.5,2231.17,2212.5,2236.07],
 ['2013/5/7', 2227.86,2235.57,2219.44,2240.26],
 ['2013/5/8', 2242.39,2246.3,2235.42,2255.21],
 ['2013/5/9', 2246.96,2232.97,2221.38,2247.86],
 ['2013/5/10', 2228.82,2246.83,2225.81,2247.67],
 ['2013/5/13', 2247.68,2241.92,2231.36,2250.85],
 ['2013/5/14', 2238.9,2217.01,2205.87,2239.93],
 ['2013/5/15', 2217.09,2224.8,2213.58,2225.19],
 ['2013/5/16', 2221.34,2251.81,2210.77,2252.87],
 ['2013/5/17', 2249.81,2282.87,2248.41,2288.09],
 ['2013/5/20', 2286.33,2299.99,2281.9,2309.39],
 ['2013/5/21', 2297.11,2305.11,2290.12,2305.3],
 ['2013/5/22', 2303.75,2302.4,2292.43,2314.18],
 ['2013/5/23', 2293.81,2275.67,2274.1,2304.95],
 ['2013/5/24', 2281.45,2288.53,2270.25,2292.59],
 ['2013/5/27', 2286.66,2293.08,2283.94,2301.7],
 ['2013/5/28', 2293.4,2321.32,2281.47,2322.1],
 ['2013/5/29', 2323.54,2324.02,2321.17,2334.33],
 ['2013/5/30', 2316.25,2317.75,2310.49,2325.72],
 ['2013/5/31', 2320.74,2300.59,2299.37,2325.53],
 ['2013/6/3', 2300.21,2299.25,2294.11,2313.43],
 ['2013/6/4', 2297.1,2272.42,2264.76,2297.1],
 ['2013/6/5', 2270.71,2270.93,2260.87,2276.86],
 ['2013/6/6', 2264.43,2242.11,2240.07,2266.69],
 ['2013/6/7', 2242.26,2210.9,2205.07,2250.63],
 ['2013/6/13', 2190.1,2148.35,2126.22,2190.1]
 ]);
 //切割數(shù)組，把數(shù)組中的日期和數(shù)據(jù)分離，返回?cái)?shù)組中的日期和數(shù)據(jù)
 function splitData(rawData) {
 var categoryData = [];
 var values = [];
 
 for (var i = 0; i < rawData.length; i++) {
 //splice 返回每組數(shù)組中被刪除的第一項(xiàng)，即返回?cái)?shù)組中被刪除的日期 
 //alert(rawData[i].splice(0, 1)[0]);
 //categoryData 日期 把返回的日期放到categoryData[]數(shù)組中
 categoryData.push(rawData[i].splice(0, 1)[0]);
 //alert(categoryData);

 //數(shù)據(jù)數(shù)組，即數(shù)組中除日期外的數(shù)據(jù)
 // alert(rawData[i]);
 values.push(rawData[i])
 }
 return {
 categoryData: categoryData, //數(shù)組中的日期 x軸對(duì)應(yīng)的日期
 values: values //數(shù)組中的數(shù)據(jù) y軸對(duì)應(yīng)的數(shù)據(jù)
 };
 }
 //計(jì)算MA平均線，N日移動(dòng)平均線=N日收盤價(jià)之和/N dayCount要計(jì)算的天數(shù)(5,10,20,30)
 function calculateMA(dayCount) {
 var result = [];
 for (var i = 0, len = data0.values.length; i < len; i++) {
 if (i < dayCount) {
 result.push('-');
 //alert(result);
 continue; //結(jié)束單次循環(huán)，即不

輸出本次結(jié)果 } var sum = 0; for (var j = 0; j < dayCount; j++) { //收盤價(jià)總和 sum += data0.values[i - j][1]; //alert(sum); } result.push(sum / dayCount); // alert(result); } return result; } option = { title: { //標(biāo)題 text: '上證指數(shù)', left: 0 }, tooltip: { //提示框 trigger: 'axis', //觸發(fā)類型：坐標(biāo)軸觸發(fā) axisPointer: { //坐標(biāo)軸指示器配置項(xiàng) type: 'cross' //指示器類型，十字準(zhǔn)星 } }, legend: { //圖例控件，點(diǎn)擊圖例控制哪些系列不現(xiàn)實(shí) data: ['日K', 'MA5', 'MA10', 'MA20', 'MA30'] }, grid: { //直角坐標(biāo)系 show:true, left: '10%', //grid組件離容器左側(cè)的距離 right: '10%', bottom: '15%', //backgroundColor:'#ccc' }, xAxis: { type: 'category', //坐標(biāo)軸類型，類目軸 data: data0.categoryData, //scale: true, //只在數(shù)字軸中有效 boundaryGap : false, //刻度作為分割線，標(biāo)簽和數(shù)據(jù)點(diǎn)會(huì)在兩個(gè)刻度上 axisLine: {onZero: false}, splitLine: {show: false}, //是否顯示坐標(biāo)軸軸線 //splitNumber: 20, //坐標(biāo)軸的分割段數(shù)，預(yù)估值，在類目軸中無效 min: 'dataMin', //特殊值，數(shù)軸上的最小值作為最小刻度 max: 'dataMax' //特殊值，數(shù)軸上的最大值作為最大刻度 }, yAxis: { scale: true, //坐標(biāo)刻度不強(qiáng)制包含零刻度 splitArea: { show: true //顯示分割區(qū)域 } }, dataZoom: [ //用于區(qū)域縮放 { filterMode:'filter', //當(dāng)前數(shù)據(jù)窗口外的數(shù)據(jù)被過濾掉來達(dá)到數(shù)據(jù)窗口縮放的效果默認(rèn)值filter type: 'inside', //內(nèi)置型數(shù)據(jù)區(qū)域縮放組件 start: 50, //數(shù)據(jù)窗口范圍的起始百分比 end: 100 //數(shù)據(jù)窗口范圍的結(jié)束百分比 }, { show: true, type: 'slider', //滑動(dòng)條型數(shù)據(jù)區(qū)域縮放組件 y: '90%', start: 50, end: 100 } ], series: [ //圖表類型 { name: '日K', type: 'candlestick', //K線圖 data: data0.values, //y軸對(duì)應(yīng)的數(shù)據(jù) ////////////////////////圖標(biāo)標(biāo)注///////////////////////////// markPoint: { //圖表標(biāo)注 label: { //標(biāo)注的文本 normal: { //默認(rèn)不顯示標(biāo)注 show:true, //position:['20%','30%'], formatter: function (param) { //標(biāo)簽內(nèi)容控制器 return param != null ? Math.round(param.value) : ''; } } }, data: [ //標(biāo)注的數(shù)據(jù)數(shù)組 { name: 'XX標(biāo)點(diǎn)', coord: ['2013/5/31', 2300], //指定數(shù)據(jù)的坐標(biāo)位置 value: 2300, itemStyle: { //圖形樣式 normal: {color: 'rgb(41,60,85)'} } }, { name: 'highest value', type: 'max', //最大值 valueDim: 'highest' //在highest維度上的最大值最高價(jià) }, { name: 'lowest value', type: 'min', valueDim: 'lowest' //最低價(jià) }, { name: 'average value on close', type: 'average', valueDim: 'close' //收盤價(jià) } ], tooltip: { //提示框 formatter: function (param) { return param.name + '<br>' + (param.data.coord || ''); } } }, /////////////////////////////////圖標(biāo)標(biāo)線/////////////////////////// markLine: { symbol: ['none', 'none'], //標(biāo)線兩端的標(biāo)記類型 data: [ [ { name: 'from lowest to highest', type: 'min', //設(shè)置該標(biāo)線為最小值的線 valueDim: 'lowest', //指定在哪個(gè)維度上的最小值 symbol: 'circle', symbolSize: 10, //起點(diǎn)標(biāo)記的大小 label: { //normal默認(rèn)，emphasis高亮 normal: {show: false}, //不顯示標(biāo)簽 emphasis: {show: false} //不顯示標(biāo)簽 } }, { type: 'max', valueDim: 'highest', symbol: 'circle', symbolSize: 10, label: { normal: {show: false}, emphasis: {show: false} } } ], { name: 'min line on close', type: 'min', valueDim: 'close' }, { name: 'max line on close', type: 'max', valueDim: 'close' } ] } }, { //MA5 5天內(nèi)的收盤價(jià)之和/5 name: 'MA5', type: 'line', data: calculateMA(5), smooth: true, lineStyle: { normal: {opacity: 0.5} } }, { name: 'MA10', type: 'line', data: calculateMA(10), smooth: true, lineStyle: { //標(biāo)線的樣式 normal: {opacity: 0.5} } }, { name: 'MA20', type: 'line', data: calculateMA(20), smooth: true, lineStyle: { normal: {opacity: 0.5} } }, { name: 'MA30', type: 'line', data: calculateMA(30), smooth: true, lineStyle: { normal: {opacity: 0.5} } }, ] }; // 使用剛指定的配置項(xiàng)和數(shù)據(jù)顯示圖表 myChart.setOption(option); </script> </body> </html>

運(yùn)行結(jié)果：