登录注册/数据分析

components/analytics/AnalyticsDonutChart.uvue

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+<template>
+  <view class="chart-wrap" :style="{ height: heightPx }">
+    <EChartsView :option="chartOption" class="chart" />
+  </view>
+</template>
+
+<script lang="uts">
+import EChartsView from '@/uni_modules/charts/EChartsView.vue'
+
+type Item = { name: string; value: number }
+
+export default {
+  components: {
+    EChartsView
+  },
+  props: {
+    items: { type: Array, default: () => [] },
+    height: { type: Number, default: 300 }
+  },
+  data() {
+    return { 
+      heightPx: '300px',
+      chartOption: {} as any
+    }
+  },
+  watch: {
+    items: { handler() { this.updateOption() }, deep: true },
+    height: { 
+      handler() { 
+        this.heightPx = `${this.height}px`
+      } 
+    }
+  },
+  mounted() {
+    this.heightPx = `${this.height}px`
+    this.updateOption()
+  },
+  methods: {
+    updateOption() {
+      const data = (this.items as Array<Item>).map((it) => ({
+        name: it.name,
+        value: (() => {
+          const n = Number(it.value)
+          return isFinite(n) ? n : 0
+        })()
+      }))
+      this.chartOption = {
+        tooltip: { trigger: 'item' },
+        legend: { left: 0, bottom: 0, itemWidth: 10, itemHeight: 10, textStyle: { fontSize: 12 } },
+        series: [
+          {
+            type: 'pie',
+            radius: ['55%', '75%'],
+            center: ['50%', '45%'],
+            avoidLabelOverlap: true,
+            label: { show: true, formatter: '{b}\n{d}%' },
+            labelLine: { length: 10, length2: 10 },
+            data
+          }
+        ]
+      }
+    }
+  }
+}
+</script>
+
+<style>
+.chart-wrap { width: 100%; }
+.chart { width: 100%; height: 100%; }
+</style>