vue3 中使用echarts图表——柱状图

矫情吗；* 2024-04-22 15:19 81阅读 0赞

> 柱状图是比较常用的图形结构，所以我先收集一些精美的柱状图

## 一、柱状图：设置圆角和颜色 ##

![f302b8a140a74e5c9e2b53b06fd9b1ca.png][]

<template>
      <div class="box" ref="chartDom"></div>
    </template>
    <script setup>
    import { ref, onMounted } from "vue";
    import * as echarts from "echarts";
    let chartDom = ref(null); //注意变量名 和 ref名字要对应
    onMounted(() => {
      initChart();
    });
    
    const initChart = () => {
      var myChart = echarts.init(chartDom.value);
      var option = {
        tooltip: {
          // 鼠标悬浮提示数据
          trigger: "axis",
          backgroundColor: "rgba(32, 33, 36,.7)",
          borderColor: "rgba(32, 33, 36,0.20)",
          borderWidth: 15,
          textStyle: {
            // 文字提示样式
            color: "#fff",
            fontSize: "12",
          },
          axisPointer: {
            // 坐标轴虚线
            type: "cross",
            label: {
              backgroundColor: "#6a7985",
            },
          },
        },
    
        // },
        grid: {
          // 控制图表的位置
          left: "5%",
          right: "5%",
          top: "18%",
          bottom: "5%",
          containLabel: true,
        },
        xAxis: {
          axisLabel: {
            // X轴线 标签修改
            textStyle: {
              color: "white", //坐标值得具体的颜色
              fontSize: "10",
            },
          },
          data: ["A", "B", "C", "D", "E", "F"],
        },
        yAxis: {
          axisLabel: {
            // y轴线 标签修改
            textStyle: {
              color: "white", //坐标值得具体的颜色
            },
          },
        },
        series: [
          {
            data: [2549, 12421, 2637, 3146, 15189, 9562],
            type: "bar",
            barWidth: "48%", //调整柱状图宽度
            itemStyle: {
              normal: {
                /*--------设置柱形图圆角 [左上角，右上角，右下角，左下角]-------------*/
                borderRadius: [12, 12, 0, 0],
                /*--------设置柱形图渐变色 -------------*/
                color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                  {
                    offset: 0,
                    color: "rgba(0,244,255,1)",
                  },
                  {
                    offset: 1,
                    color: "rgba(0,77,167,1)",
                  },
                ]),
              },
            },
          },
        ],
      };
      option && myChart.setOption(option);
    };
    </script>
    
    <style scoped>
    .box {
      width: 24vw;
      height: 60vh;
      background-color: #031a67;
    }
    </style>

[f302b8a140a74e5c9e2b53b06fd9b1ca.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/22/011679d163f545b28c9313f024744679.png