assess-app/common/chart/ring_chart.vue

<template>
	<view class="charts-box" :style="[{width},{height},]">
		<qiun-data-charts canvas2d type="ring" :opts="opts" :chartData="chartData" :errorMessage="errorMessage" />
	</view>
</template>

<script>
	export default {
		props: {
			width: {
				type: String,
				default: '200rpx'
			},
			height: {
				type: String,
				default: '200rpx'
			},
			canvasId: {
				type: String,
				default: ''
			},
			bgChartColor: {
				type: Array,
				default: () => ["#00BF8A", "#2B7DFA"]
			},
		},
		data() {
			return {
				errorMessage: '',
        isCanvas2d: process.uniEnv.isCanvas2d,
				chartData: {},
				//这里的 opts 是图表类型 type="ring" 的全部配置参数，您可以将此配置复制到 config-ucharts.js 文件中下标为 ['ring'] 的节点中来覆盖全局默认参数。实际应用过程中 opts 只需传入与全局默认参数中不一致的【某一个属性】即可实现同类型的图表显示不同的样式，达到页面简洁的需求。
				opts: {
					timing: "easeOut",
					duration: 1000,
					rotate: false,
					rotateLock: false,
					color: ["#00BF8A", "#2B7DFA"],
					padding: [5, 5, 5, 5],
					fontSize: 13,
					fontColor: "#666666",
					dataLabel: false,
					dataPointShape: true,
					dataPointShapeType: "solid",
					touchMoveLimit: 60,
					enableScroll: false,
					enableMarkLine: false,
					legend: {
						show: false,
						position: "right",
						lineHeight: 25,
						float: "center",
						padding: 5,
						margin: 5,
						backgroundColor: "rgba(0,0,0,0)",
						borderColor: "rgba(0,0,0,0)",
						borderWidth: 0,
						fontSize: 13,
						fontColor: "#666666",
						hiddenColor: "#CECECE",
						itemGap: 10
					},
					title: {
						name: "",
						fontSize: 15,
						color: "#666666",
						offsetX: 0,
						offsetY: 0
					},
					subtitle: {
						name: "",
						fontSize: 20,
						color: "#7cb5ec",
						offsetX: 0,
						offsetY: 0
					},
					extra: {
						ring: {
							ringWidth: 12,
							activeOpacity: 0.5,
							activeRadius: 10,
							offsetAngle: 0,
							labelWidth: 15,
							border: true,
							borderWidth: 3,
							borderColor: "#FFFFFF",
							centerColor: "#FFFFFF",
							customRadius: 0,
							linearType: "none"
						},
						tooltip: {
							showBox: true,
							showArrow: true,
							showCategory: false,
							borderWidth: 0,
							borderRadius: 0,
							borderColor: "#000000",
							borderOpacity: 0.7,
							bgColor: "#000000",
							bgOpacity: 0.7,
							gridType: "solid",
							dashLength: 4,
							gridColor: "#CCCCCC",
							boxPadding: 3,
							fontSize: 13,
							lineHeight: 20,
							fontColor: "#FFFFFF",
							legendShow: true,
							legendShape: "auto",
							splitLine: true,
							horizentalLine: false,
							xAxisLabel: false,
							yAxisLabel: false,
							labelBgColor: "#FFFFFF",
							labelBgOpacity: 0.7,
							labelFontColor: "#666666"
						}
					}
				}
			};
		},
		created() {
			this.opts.color = this.bgChartColor
		},
		onReady() {
			this.getServerData();
		},
		methods: {
			getServerData() {
				//模拟从服务器获取数据时的延时
				setTimeout(() => {
					//模拟服务器返回数据，如果数据格式和标准格式不同，需自行按下面的格式拼接
					let res = {
						series: [{
							data: [{
								"name": "一班",
								"value": 50
							}, {
								"name": "二班",
								"value": 30
							}]
						}]
					};
					this.chartData = JSON.parse(JSON.stringify(res));
				}, 500);
			},
			setNoData() {
				this.chartData = {};
				this.errorMessage = '暂无数据'
			},
		}
	};
</script>

<style scoped>
	/* 请根据实际需求修改父元素尺寸，组件自动识别宽高 */
	.charts-box {
		width: 100%;
		height: 300px;
	}
</style>