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urbanLifeline_YanAn / src / views / oneMap / smartBridge / components / pieRing.vue
@zhangzhihui zhangzhihui on 12 Nov 6 KB gl + ql
<template>
  <div class="chartBox" :id="id"></div>
</template>
<script setup name="pieRing">
import { guid } from '@/utils/ruoyi';

const { proxy } = getCurrentInstance();
const props = defineProps({
  //刷新标志
  refresh: {
    type: [String, Number],
    default: 1,
  },
  //数据
  echartData: {
    type: Object,
    default: {},
  },
  title: {
    type: String,
    default: '',
  },
});
// console.log('-------------------', props.title);

const id = guid();
const myChart = shallowRef('');

let angle = 0; //角度,用来做简单的动画效果的
let pieValue = ref(80);
let maxvalue = 100;
let timerId = null;
let option = ref({});

watch(
  () => props.refresh,
  value => {
    //先销毁实例
    myChart.value && myChart.value.dispose();
    intChart();
  }
);
//自适应
function resizeTheChart() {
  if (myChart.value) {
    myChart.value.resize();
  }
}

//获取圆上面某点的坐标(x0,y0表示坐标,r半径,angle角度)
function getCirlPoint(x0, y0, r, angle) {
  let x1 = x0 + r * Math.cos((angle * Math.PI) / 180);
  let y1 = y0 + r * Math.sin((angle * Math.PI) / 180);
  return {
    x: x1,
    y: y1,
  };
}

function draw() {
  angle = angle + 10;
  myChart.value.setOption(option.value, true);
  //window.requestAnimationFrame(draw);
}

//初始化
function intChart() {
  pieValue.value = props.echartData?.data || 0;
  let percent = ((pieValue.value / maxvalue) * 100).toFixed(0);
  myChart.value = proxy.echarts.init(document.getElementById(id));
  myChart.value.clear();
  // 绘制图表
  // if (!props.echartData.series.length) return;
  option.value = {
    // backgroundColor: '#000E1A',
    title: {
      text: '{a|' + percent + '} {c|分}',
      x: 'center',
      y: 'center',
      textStyle: {
        rich: {
          a: {
            fontSize: 32,
            color: 'rgba(28, 138, 255, 1)',
            // fontFamily: 'Din',
            // lineHeight: 40, // 调整行高以确保对齐
            verticalAlign: 'bottom', // 底部对齐
          },

          c: {
            fontSize: 14,
            color: 'rgba(206, 246, 255, 1)',
            // fontFamily: 'SanFrancisco ',
            // lineHeight: 20, // 调整行高以确保对齐
            // verticalAlign: 'bottom', // 底部对齐
          },
        },
      },
    },
    polar: [
      {
        // radius: ['33.5%', '45%'],
        radius: ['85%', '100%'],
        // radius: '100%',
        center: ['50%', '50%'],
        // startAngle: 180, // 从180度开始
        // endAngle: 0, // 到0度结束
      },
    ],

    angleAxis: {
      max: maxvalue,
      show: false,
      inverse: false,
      clockwise: false, //角度轴的方向为逆时针方向。
    },
    radiusAxis: {
      type: 'category',
      show: true,
      axisLabel: {
        show: false,
      },
      axisLine: {
        show: false,
      },
      axisTick: {
        show: false,
      },
    },

    series: [
      // 大弧线
      {
        name: 'ring5',
        type: 'custom',
        coordinateSystem: 'none',
        renderItem: function (params, api) {
          return {
            type: 'arc',
            shape: {
              cx: api.getWidth() / 2,
              cy: api.getHeight() / 2,
              r: (Math.min(api.getWidth(), api.getHeight()) / 2.1) * 0.9,
              // r: (Math.min(api.getWidth(), api.getHeight()) / 2.3) * 0.6,
              // startAngle: (0+angle) * Math.PI / 180,
              // endAngle: (90+angle) * Math.PI / 180
              startAngle: (0 * Math.PI) / 180,
              endAngle: (360 * Math.PI) / 180,
            },
            style: {
              // stroke: 'rgb(53,53,53)',
              stroke: 'rgba(28, 138, 255,0.5)',
              fill: ' transparent',
              lineWidth: 5,
            },
            silent: true,
          };
        },
        data: [0],
      },

      // {
      //   name: 'ring5',
      //   type: 'custom',
      //   coordinateSystem: 'none',
      //   renderItem: function (params, api) {
      //     // 定义线性渐变色
      //     // let gradient = proxy.echarts.graphic.RadialGradient(
      //     //   0.5,
      //     //   0.5, // 圆心位置,相对于容器的百分比
      //     //   0.5, // 半径,相对于容器的百分比
      //     //   [
      //     //     { offset: 0, color: 'rgba(62,255,203,0)' }, // 起始颜色
      //     //     { offset: 1, color: '#3EFFCB' }, // 结束颜色
      //     //   ]
      //     // );
      //     return {
      //       type: 'arc',
      //       shape: {
      //         cx: api.getWidth() / 2,
      //         cy: api.getHeight() / 2,
      //         r: (Math.min(api.getWidth(), api.getHeight()) / 2) * 0.6,
      //         startAngle: ((0 + angle) * Math.PI) / 180,
      //         endAngle: ((270 + angle) * Math.PI) / 180,
      //       },
      //       style: {
      //         stroke: '#3EFFCB',
      //         // stroke: gradient,
      //         fill: 'transparent',
      //         lineWidth: 5,
      //       },
      //       silent: true,
      //     };
      //   },
      //   data: [0],
      // },

      //极坐标柱状图
      {
        name: '',
        type: 'bar',
        roundCap: true,
        barWidth: 10,
        showBackground: true,
        stack: 'a',
        backgroundStyle: {
          color: 'rgba(66, 66, 66, 0)',
          // borderWidth: 5,
        },
        data: [pieValue.value, 0],
        coordinateSystem: 'polar',

        itemStyle: {
          normal: {
            color: proxy.echarts.graphic.LinearGradient(0, 1, 0, 0, [
              {
                offset: 0,
                color: 'rgb(255,255,255,0.8)',
              },
              {
                offset: 1,
                color: 'rgba(255,255,255,1)',
              },
            ]),
            shadowBlur: 5,
            shadowColor: 'rgba(28, 138, 255,0.8)',
          },
        },
      },
    ],
  };

  myChart.value.setOption(option.value);
}

onMounted(() => {
  intChart();
  window.addEventListener('resize', resizeTheChart);
  // timerId = setInterval(function () {
  //   //用setInterval做动画感觉有问题
  //   draw();
  // }, 100);
});

onBeforeUnmount(() => {
  if (timerId) {
    clearInterval(timerId);
  }
  myChart.value && myChart.value.dispose();
  window.removeEventListener('resize', resizeTheChart);
});
</script>

<style lang="scss" scoped>
.chartBox {
  width: 100%;
  height: 100%;
}
</style>