securityHtml/src/views/index/components/pieCamera.vue

<template>
  <div
    ref="main"
    :class="className"
    :style="{ height: height, width: width }"
  ></div>
</template>
<script>
import echarts from "echarts";
import resize from "./mixins/resize";
export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: "chart",
    },
    width: {
      type: String,
      default: "100%",
    },
    height: {
      type: String,
      default: "100%",
    },
    perData: {
      type: Array,
      default: () => [ {
        name: "摄像头",
        value: [39],
        // nAmount: 566557.14,
      }],
    },
  },

  data() {
    return {
      chart: null,
    };
  },
  mounted() {
    this.$nextTick(() => {
      this.initChart();
    });
  },
  beforeDestroy() {
    if (!this.chart) {
      return;
    }
    this.chart.dispose();
    this.chart = null;
  },
  methods: {
    initChart() {
      // 基于准备好的dom，初始化echarts实例
      this.chart = echarts.init(this.$refs.main);


      var color = ["#C8E4FF", "#0483FF", "#0483FF"];

      var title = this.perData[0].value;
      var per = "%";

      // 指定图表的配置项和数据
      this.chart.setOption({
        title: {
          text: "{a|" + title + "}{b|" + per + "}",
          textStyle: {
            rich: {
              a: {
                fontSize: 25,
                color: color[2],
                fontFamily: "impact",
              },
              b: {
                fontSize: 16,
                fontFamily: "impact",
                color: color[2],
              },
            },
          },
          subtext: "异常率",
          subtextStyle: {
            color: "#fff",
            fontSize: "12",
          },
          itemGap: 3,
          left: "center",
          top: "37%", //aa圈内标题的位置
        },

        graphic: [
          {
            type: "text",
            z: 100,
            left: "center",
            top: "90%", // aa 底下标题w在容器里的位置
            style: {
              fill: "#fff",
              text: this.perData[0].name,
              font: "1.6rem Microsoft YaHei", // aa 底下标题字体大小
            },
          },
        ],
        tooltip: {
          //aa 手指移入
          formatter: function (params) {
            return (
              '<span style="color: #fff;">占比：' + params.value + "%</span>"
            );
          },
        },

        angleAxis: {
          max: 100,
          clockwise: false, // 逆时针
          // 隐藏刻度线
          show: false,
          startAngle: 90,
        },

        radiusAxis: {
          type: "category",
          show: true,
          axisLabel: {
            show: false,
          },
          axisLine: {
            show: false,
          },
          axisTick: {
            show: false,
          },
        },

        polar: [
          {
            center: ["50%", "50%"], //中心点位置    aa填充圈的中心位置
            radius: "100%", //图形大小    aa填充圈的图形大小
          },
        ],
        series: [
          {
            name: "小环",
            type: "gauge",
            splitNumber: 15,
            radius: "75%", //aa发散圈的大小
            center: ["50%", "50%"],
            startAngle: 0,
            endAngle: 359.9999,
            axisLine: {
              show: false,
            },
            axisTick: {
              show: true,
              lineStyle: {
                color: color[1],
                width: 1, // aa发散圈的粗细
                shadowBlur: 1,
                shadowColor: color[1],
              },
              length: 8, // aa发散圈的长度
              splitNumber: 5, //aa发散圈每一条间隔
            },
            splitLine: {
              show: false,
            },
            axisLabel: {
              show: false,
            },
            detail: {
              show: false,
            },
          },
          {
            type: "bar",
            z: 10,
            data: this.perData[0].value,
            showBackground: false,
            backgroundStyle: {
              color: color[1],
              borderWidth: 10,
              width: 10,
            },
            coordinateSystem: "polar",
            // roundCap: true,   //aa填充圈圆角
            barWidth: 7, //aa填充圈宽度
            itemStyle: {
              normal: {
                opacity: 1,
                color: new echarts.graphic.LinearGradient(0, 0, 1, 1, [
                  {
                    offset: 0,
                    color: color[0],
                  },
                  {
                    offset: 1,
                    color: color[1],
                  },
                ]),
                shadowBlur: 5,
                shadowColor: "#2A95F9",
              },
            },
          },
          {
            type: "pie",
            name: "内层细圆环",
            radius: ["50%", "52%"], //aa内层细圆环
            center: ["50%", "50%"],
            startAngle: 120,
            hoverAnimation: false,
            clockWise: true,
            barWidth: 1,
            itemStyle: {
              normal: {
                color: new echarts.graphic.LinearGradient(0, 0, 1, 1, [
                  {
                    offset: 0,
                    color: color[0],
                  },
                  {
                    offset: 1,
                    color: color[1],
                  },
                ]),
              },
            },
            tooltip: {
              show: false,
            },
            label: {
              show: false,
            },
            data: [100],
          },
        ],
      });
    },
  },
};
</script>