• 使用ECharts画K线图


    需引入echarts.js插件,开发环境建议选择源代码版本,该版本包含了常见的警告和错误提示。下载地址 http://echarts.baidu.com/download.html

    下面是代码,注释很清楚,主要是js代码,可根据项目进行增删!配置项说明: http://echarts.baidu.com/option.html#title

    <!DOCTYPE html>
    <html>
    <head>
        <meta charset="utf-8">
        <title>5分钟上手ECharts</title>
        <!-- 引入ECharts文件 -->
        <script type="text/javascript" src="./echarts.js"></script>
    </head>
    <body>
    
        <!-- 为ECharts准备一个具备大小(宽高)的DOM -->
        <div id="main" style=" 1200px; height: 600px;"></div>
        
    <!-- js代码 -->
        <script type="text/javascript">
    
            /*基于准备好的dom,初始化echarts实例*/
            var myChart = echarts.init(document.getElementById('main'));
    
            // 数据意义:开盘(open),收盘(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]
            ]);
    
            //切割数组,把数组中的日期和数据分离,返回数组中的日期和数据
            function splitData(rawData) {
                var categoryData = [];
                var values = [];
                
                for (var i = 0; i < rawData.length; i++) {
                    //splice 返回每组数组中被删除的第一项,即返回数组中被删除的日期 
                    //alert(rawData[i].splice(0, 1)[0]);
                    //categoryData  日期  把返回的日期放到categoryData[]数组中
                    categoryData.push(rawData[i].splice(0, 1)[0]);
                    //alert(categoryData);
    
                    //数据数组,即数组中除日期外的数据
                   // alert(rawData[i]);
                    values.push(rawData[i])
                }
                return {
                    categoryData: categoryData, //数组中的日期 x轴对应的日期
                    values: values              //数组中的数据 y轴对应的数据
                };
            }
    
        //计算MA平均线,N日移动平均线=N日收盘价之和/N  dayCount要计算的天数(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;   //结束单次循环,即不输出本次结果
                    }
                    var sum = 0;
                    for (var j = 0; j < dayCount; j++) {
                        //收盘价总和
                        sum += data0.values[i - j][1];
                        //alert(sum);
                    }
                    result.push(sum / dayCount);
                   // alert(result);
                }
                return result;
            }
    
    
    
            option = {
                title: {    //标题
                    text: '上证指数',
                    left: 0
                },
                tooltip: {  //提示框
                    trigger: 'axis',    //触发类型:坐标轴触发
                    axisPointer: {  //坐标轴指示器配置项
                        type: 'cross'   //指示器类型,十字准星
                    }
                },
                legend: {   //图例控件,点击图例控制哪些系列不现实
                    data: ['日K', 'MA5', 'MA10', 'MA20', 'MA30']
                },
                grid: {     //直角坐标系
                    show:true,
                    left: '10%',    //grid组件离容器左侧的距离
                    right: '10%',
                    bottom: '15%',
                    //backgroundColor:'#ccc'
                },
                xAxis: {
                    type: 'category',   //坐标轴类型,类目轴
                    data: data0.categoryData,
                    //scale: true,  //只在数字轴中有效
                    boundaryGap : false,    //刻度作为分割线,标签和数据点会在两个刻度上
                    axisLine: {onZero: false},
                    splitLine: {show: false},   //是否显示坐标轴轴线
                    //splitNumber: 20,    //坐标轴的分割段数,预估值,在类目轴中无效
                    min: 'dataMin', //特殊值,数轴上的最小值作为最小刻度
                    max: 'dataMax'  //特殊值,数轴上的最大值作为最大刻度
                },
                yAxis: {
                    scale: true,    //坐标刻度不强制包含零刻度
                    splitArea: {
                        show: true  //显示分割区域
                    }
                },
                dataZoom: [     //用于区域缩放
                    {
                        filterMode:'filter',    //当前数据窗口外的数据被过滤掉来达到数据窗口缩放的效果  默认值filter
                        type: 'inside', //内置型数据区域缩放组件
                        start: 50,      //数据窗口范围的起始百分比
                        end: 100        //数据窗口范围的结束百分比
                    },
                    {
                        show: true,
                        type: 'slider', //滑动条型数据区域缩放组件
                        y: '90%',
                        start: 50,
                        end: 100
                    }
                ],
                series: [   //图表类型
                    {
                        name: '日K',
                        type: 'candlestick',    //K线图
                        data: data0.values,     //y轴对应的数据
    
            ////////////////////////图标标注/////////////////////////////
    
                        markPoint: {    //图表标注
                            label: {    //标注的文本
                                normal: {   //默认不显示标注
                                    show:true,
                                    //position:['20%','30%'],
                                    formatter: function (param) {   //标签内容控制器
                                        return param != null ? Math.round(param.value) : '';
                                    }
                                }
                            },
                            data: [     //标注的数据数组
                                {
                                    name: 'XX标点',
                                    coord: ['2013/5/31', 2300], //指定数据的坐标位置
                                    value: 2300,
                                    itemStyle: {    //图形样式
                                        normal: {color: 'rgb(41,60,85)'}
                                    }
                                },
                                {
                                    name: 'highest value',
                                    type: 'max',    //最大值
                                    valueDim: 'highest'     //在highest维度上的最大值 最高价
                                },
                                {
                                    name: 'lowest value',
                                    type: 'min',
                                    valueDim: 'lowest'  //最低价
                                },
                                {
                                    name: 'average value on close',
                                    type: 'average',
                                    valueDim: 'close'   //收盘价
                                }
                            ],
                            tooltip: {      //提示框
                                formatter: function (param) {
                                    return param.name + '<br>' + (param.data.coord || '');
                                }
                            }
                        },
    
    /////////////////////////////////图标标线///////////////////////////
    
                        markLine: {
                            symbol: ['none', 'none'],   //标线两端的标记类型
                            data: [
                                [
                                    {
                                        name: 'from lowest to highest',
                                        type: 'min',    //设置该标线为最小值的线
                                        valueDim: 'lowest', //指定在哪个维度上的最小值
                                        symbol: 'circle',
                                        symbolSize: 10, //起点标记的大小
                                        label: {    //normal默认,emphasis高亮
                                            normal: {show: false},  //不显示标签
                                            emphasis: {show: false} //不显示标签
                                        }
                                    },
                                    {
                                        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天内的收盘价之和/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: {    //标线的样式
                            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}
                        }
                    },
    
                ]
            };
    
    
            // 使用刚指定的配置项和数据显示图表
            myChart.setOption(option);
        </script>
    
    </body>
    </html>

    运行结果:

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  • 原文地址:https://www.cnblogs.com/zxf100/p/7380378.html
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