yudao-dev/src/views/energy/analysis/trendAnalysis/components/lineChart.vue

<template>
	<div
		id="analysischartLine"
		style="width: 100%"
		:style="{ height: chartHeight + 'px' }"></div>
</template>
<script>
import * as echarts from 'echarts';
import resize from '@/utils/chartMixins/resize';
export default {
	name: 'LineChart',
	mixins: [resize],
	data() {
		return {
			chartDom: '',
			chart: '',
			chartHeight: this.tableHeight(214) - 100,
		};
	},
	props: {
		chartData: {
			type: Array,
			required: true,
			default: () => {
				return [];
			},
		},
		timeDim: {
			type: String,
			default: '',
		},
	},
	watch: {
		chartData: function () {
			this.getChart();
		},
	},
	mounted() {
		window.addEventListener('resize', () => {
			this.chartHeight = this.tableHeight(214) - 70;
		});
	},
	methods: {
		getChart() {
			if (
				this.chart !== null &&
				this.chart !== '' &&
				this.chart !== undefined
			) {
				this.chart.dispose(); // 页面多次刷新会出现警告，Dom已经初始化了一个实例，这是销毁实例
			}
			this.chartDom = document.getElementById('analysischartLine');
			this.chart = echarts.init(this.chartDom);
			let xData = [];
			let yData = [];
			for (let i = 0; i < this.chartData.length; i++) {
				let time = '';
				if (this.timeDim === '3') {
					let year = this.chartData[i].time.slice(0, 4);
					let weak = this.chartData[i].time.slice(4, 6);
					time = year + ' 第 ' + weak + ' 周';
				} else {
					time = this.chartData[i].time;
				}
				xData.push(time);
				yData.push(this.chartData[i].useNum);
			}

			var option = {
				color: ['#288AFF'],
				// tooltip: {
				//   trigger: 'axis'
				// },
				grid: {
					left: '4%',
					right: '1%',
					bottom: '1%',
					containLabel: true,
				},
				xAxis: {
					type: 'category',
					data: xData,
					axisLabel: {
						rotate: '45',
					},
				},
				yAxis: {
					type: 'value',
				},
				series: [
					{
						data: yData,
						type: 'line',
					},
				],
			};

			option && this.chart.setOption(option);
		},
	},
};
</script>