echarts k 线图

Echarts 常用各类图表模板配置

注意： 这里主要就是基于各类图表，更多的使用 Echarts 的各类配置项；

以下代码都可以复制到 Echarts 官网，直接预览；

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图标模板目录 Echarts 常用各类图表模板配置一、K 线图二、环形图三、折线图四、横向柱状图五、折线图 + 柱状图

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一、K 线图

const upColor = '#32E5FF';
const downColor = '#F7517F';

function splitData(rawData) {
  let categoryData = [];
  let values = [];
  let volumes = [];
  for (let i = 0; i < rawData.length; i++) {
    categoryData.push(rawData[i].splice(0, 1)[0]);
    values.push(rawData[i]);
    volumes.push([i, rawData[i][4], rawData[i][0] > rawData[i][1] ? 1 : -1]);
  }

  return {
    categoryData: categoryData,
    values: values,
    volumes: volumes
  };
}

function calculateMA(dayCount, data) {
  var result = [];
  for (var i = 0, len = data.values.length; i < len; i++) {
    if (i < dayCount) {
      continue;
    }
    var sum = 0;
    for (var j = 0; j < dayCount; j++) {
      sum += data.values[i - j][1];
    }
    result.push(+(sum / dayCount).toFixed(3));
  }
  return result;
}

const rowData = [
  ['2004-01-12', 10461.55, 10485.18, 10389.85, 10543.03, 197960000],
  ['2004-01-13', 10485.18, 10427.18, 10341.19, 10539.25, 197310000],
  ['2004-01-14', 10428.67, 10538.37, 10426.89, 10573.85, 186280000],
  ['2004-01-15', 10534.52, 10553.85, 10454.52, 10639.03, 260090000],
  ['2004-01-16', 10556.37, 10600.51, 10503.7, 10666.88, 254170000],
  ['2004-01-20', 10601.4, 10528.66, 10447.92, 10676.96, 224300000],
  ['2004-01-21', 10522.77, 10623.62, 10453.11, 10665.7, 214920000],
  ['2004-01-22', 10624.22, 10623.18, 10545.03, 10717.4, 219720000],
  ['2004-01-23', 10625.25, 10568.29, 10490.14, 10691.77, 234260000],
  ['2004-01-26', 10568, 10702.51, 10510.44, 10725.18, 186170000],
  ['2004-01-27', 10701.1, 10609.92, 10579.33, 10748.81, 206560000],
  ['2004-01-28', 10610.07, 10468.37, 10412.44, 10703.25, 247660000],
  ['2004-01-29', 10467.41, 10510.29, 10369.92, 10611.56, 273970000],
  ['2004-01-30', 10510.22, 10488.07, 10385.56, 10551.03, 208990000],
  ['2004-02-02', 10487.78, 10499.18, 10395.55, 10614.44, 224800000],
  ['2004-02-03', 10499.48, 10505.18, 10414.15, 10571.48, 183810000],
  ['2004-02-04', 10503.11, 10470.74, 10394.81, 10567.85, 227760000],
  ['2004-02-05', 10469.33, 10495.55, 10399.92, 10566.37, 187810000],
  ['2004-02-06', 10494.89, 10593.03, 10433.7, 10634.81, 182880000],
  ['2004-02-09', 10592, 10579.03, 10433.7, 10634.81, 160720000],
  ['2004-02-10', 10578.74, 10613.85, 10511.18, 10667.03, 160590000],
  ['2004-02-11', 10605.48, 10737.7, 10561.55, 10779.4, 277850000],
  ['2004-02-12', 10735.18, 10694.07, 10636.44, 10775.03, 197560000],
  ['2004-02-13', 10696.22, 10627.85, 10578.66, 10755.47, 208340000],
  ['2004-02-17', 10628.88, 10714.88, 10628.88, 10762.07, 169730000],
  ['2004-02-18', 10706.68, 10671.99, 10623.62, 10764.36, 164370000],
  ['2004-02-19', 10674.59, 10664.73, 10626.44, 10794.95, 219890000],
  ['2004-02-20', 10666.29, 10619.03, 10559.11, 10722.77, 220560000],
  ['2004-02-23', 10619.55, 10609.62, 10508.89, 10711.84, 229950000],
  ['2004-02-24', 10609.55, 10566.37, 10479.33, 10681.4, 225670000],
  ['2004-02-25', 10566.59, 10601.62, 10509.4, 10660.73, 192420000],
  ['2004-02-26', 10598.14, 10580.14, 10493.7, 10652.96, 223230000],
  ['2004-02-27', 10581.55, 10583.92, 10519.03, 10689.55, 200050000],
  ['2004-03-01', 10582.25, 10678.14, 10568.74, 10720.14, 185030000],
  ['2004-03-02', 10678.36, 10591.48, 10539.4, 10713.92, 215580000],
  ['2004-03-03', 10588.59, 10593.11, 10506.66, 10651.03, 188800000],
  ['2004-03-04', 10593.48, 10588, 10522.59, 10645.33, 161050000]
];

var data = splitData(rowData);

option = {
  animation: false,
  title: [
    {
      text: 'Echarts K 线图',
      left: 50,
      textStyle: {
        fontSize: '18px',
        color: 'rgba(255, 255, 255, 0.85)'
      }
    },
    {
      text: '可视化组件',
      left: 250,
      top: 6,
      textStyle: {
        fontSize: '14px',
        color: 'rgba(255, 255, 255, 0.65)'
      }
    }
  ],
  legend: {
    type: 'scroll',
    orient: 'horizontal',
    right: '8%',
    top: '2%',
    bottom: '20%',
    icon: 'rect',
    itemWidth: 12,
    itemHeight: 4,
    align: 'left',
    formatter: (val) => {
      if (val == 'MA5') {
        return `{a|${val}}`;
      } else if (val == 'MA10') {
        return `{b|${val}}`;
      } else if (val == 'MA20') {
        return `{c|${val}}`;
      }
      return `{d|${val}}`;
    },
    textStyle: {
      height: 10,
      color: '#FF4500',
      rich: {
        a: {
          color: '#E6B005'
        },
        b: {
          color: '#32E5FF'
        },
        c: {
          color: '#2061DF'
        },
        d: {
          color: '#B74BEE'
        }
      }
    },
    data: ['MA5', 'MA10', 'MA20', 'MA30']
  },
  tooltip: {
    trigger: 'axis',
    axisPointer: {
      type: 'cross'
    },
    borderWidth: 1,
    borderColor: '#ccc',
    padding: 10,
    textStyle: {
      color: '#000'
    },
    position: function (pos, params, el, elRect, size) {
      const obj = {
        top: 10
      };
      obj[['left', 'right'][+(pos[0] < size.viewSize[0] / 2)]] = 30;
      return obj;
    }
    // extraCssText: 'width: 170px'
  },
  axisPointer: {
    link: [
      {
        xAxisIndex: 'all'
      }
    ],
    label: {
      backgroundColor: '#777'
    }
  },
  visualMap: {
    show: false,
    seriesIndex: 5,
    dimension: 2,
    pieces: [
      {
        value: 1,
        color: downColor
      },
      {
        value: -1,
        color: upColor
      }
    ]
  },
  grid: [
    {
      left: '10%',
      right: '8%',
      height: '60%'
    },
    {
      left: '10%',
      right: '8%',
      top: '80%',
      height: '16%'
    }
  ],
  xAxis: [
    {
      type: 'category',
      data: data.categoryData,
      boundaryGap: true,
      axisLine: {
        onZero: false,
        lineStyle: {
          color: 'rgba(255, 255, 255, 0.2)'
        }
      },
      axisLabel: {
        color: 'rgba(255, 255, 255, 0.65)'
      },
      min: 'dataMin',
      max: 'dataMax',
      axisPointer: {
        z: 100
      }
    },
    {
      type: 'category',
      gridIndex: 1,
      data: data.categoryData,
      boundaryGap: true,
      axisLine: { onZero: false },
      axisTick: { show: false },
      splitLine: { show: false },
      axisLabel: { show: false },
      min: 'dataMin',
      max: 'dataMax'
    }
  ],
  yAxis: [
    {
      scale: true,
      splitArea: {
        show: false
      },
      axisLine: {
        show: true,
        lineStyle: {
          color: 'rgba(255, 255, 255, 0.2)'
        }
      },
      axisLabel: {
        color: 'rgba(255, 255, 255, 0.65)'
      },
      splitLine: {
        lineStyle: {
          color: 'rgba(255, 255, 255, 0.2)'
        }
      }
    },
    {
      scale: true,
      gridIndex: 1,
      splitNumber: 2,
      axisLabel: {
        show: true,
        formatter: (value) => {
          if (value >= 10000) {
            value = value / 10000 + ' 万';
          }
          if (value >= 1000) {
            value = value / 1000 + ' 千';
          }
          return value;
        }
      },
      axisLine: {
         showMaxLabel: false,
        show: true,
        lineStyle: {
          color: 'rgba(255, 255, 255, 0.2)'
        }
      },
      axisTick: { show: false },
      splitLine: { show: true }
    }
  ],
  series: [
    {
      name: 'Dow-Jones index',
      type: 'candlestick',
      data: data.values,
      itemStyle: {
        color: upColor,
        color0: downColor,
        borderColor: undefined,
        borderColor0: undefined
      },
      tooltip: {
        formatter: function (param) {
          param = param[0];
          return [
            'Date: ' + param.name + '
',
            'Open: ' + param.data[0] + '
',
            'Close: ' + param.data[1] + '
',
            'Lowest: ' + param.data[2] + '
',
            'Highest: ' + param.data[3] + '
'
          ].join('');
        }
      }
    },
    {
      name: 'MA5',
      type: 'line',
      showSymbol: false,
      data: calculateMA(5, data),
      smooth: true,
      lineStyle: {}
    },
    {
      name: 'MA10',
      type: 'line',
      showSymbol: false,
      data: calculateMA(10, data),
      smooth: true,
      lineStyle: {}
    },
    {
      name: 'MA20',
      type: 'line',
      showSymbol: false,
      data: calculateMA(20, data),
      smooth: true,
      lineStyle: {}
    },
    {
      name: 'MA30',
      type: 'line',
      showSymbol: false,
      data: calculateMA(30, data),
      smooth: true,
      lineStyle: {}
    },
    {
      name: 'Volume',
      type: 'bar',
      xAxisIndex: 1,
      yAxisIndex: 1,
      data: data.volumes
    }
  ]
};

二、环形图

echarts 环形图：多层嵌套，自定义 legend 位置、颜色，中间插入数据及文字，颜色渐变；

文章链接 ：https://blog.csdn.net/aibujin/article/details/124796709?spm=1001.2014.3001.5501

三、折线图

echarts 折线图，横纵坐标轴线颜色、文字颜色，网格线，坐标轴两侧留白，数据渐变，刻度线等；

文章链接： https://blog.csdn.net/aibujin/article/details/124802512?spm=1001.2014.3001.5501

四、横向柱状图

echarts 横向柱状图，坐标轴隐藏，网格线颜色渐变，网格默认背景，柱状图边框宽度/颜色，数据渐变，刻度线隐藏等；

文章链接： https://blog.csdn.net/aibujin/article/details/124802889?spm=1001.2014.3001.5501

五、折线图 + 柱状图

echarts 折线图 + 柱状图，左右两侧y轴线，横纵坐标轴线颜色、文字颜色，网格线，坐标轴两侧留白，数据渐变，刻度线等；

文章链接： https://blog.csdn.net/aibujin/article/details/124803493?spm=1001.2014.3001.5501