smartmeter-app/pages/shebei/eletj.vue

<template>
	<view class="page">
		<u-navbar title="用电分析" :border-bottom="false" :background="bgc" title-color='#2E4975' title-size='36'
			height='36' id="navbar"></u-navbar>
		<view class="card">
			<view class="xzsj">
				<u-picker mode="time" v-model="show" :params="params" @confirm="confirm"></u-picker>
			</view>
			<view class="month" @click="show = true">
				{{yeartime.year + '年' + yeartime.month + '月'}}
			</view>
			<view class="tit">
				本月收入（元）
			</view>
			<div class="txt">
				{{quantity}}
			</div>
			<view class="echarts" v-if="loging">
				<!-- <mpvue-echarts id="main" ref="pieChart" :echarts="echarts" @onInit="initChart" /> -->
				<uni-ec-canvas class="uni-ec-canvas" id="uni-ec-canvas" ref="canvas" canvas-id="uni-ec-canvas"
					:ec="ec">
				</uni-ec-canvas>
			</view>
		</view>
		<view class="list" style="padding-bottom: 120rpx;">
			<view class="card_list" v-for="(item,index) in timelist" :key="index">
				<view class="left">
					{{yeartime.year + '年' + yeartime.month + '月' + item.createDay + '日'}}
				</view>
			<view class="right">
				{{item.usedElectriQuantity}}度
			</view>
			</view>
		</view>

	</view>
</template>

<script>
	import uniEcCanvas from '@/components/uni-ec-canvas/uni-ec-canvas.vue'
	import * as echarts from '@/components/uni-ec-canvas/echarts'
	let chart = null
	export default {
		components: {
			uniEcCanvas
		},
		data() {
			return {
				ec: {
					lazyLoad: true
				},
				bgc: {
					backgroundColor: "#F7FAFE",
				},
				params: {
					year: true,
					month: true,
					day: false,
					hour: false,
					minute: false,
					second: false
				},
				show: false,
				yeartime: {
					year: '',
					month: ''
				},
				timelist: '',
				quantity: 0, //电量
				chartData: [],
				chartday: [],
				loging: true,
				deviceId: '',
				userType: ''
			}
		},
		onLoad(e) {
			// setTimeout(() => {

			// 			this.initChart()		
			// }, 300);
			// this.initChart()
			setTimeout(() => {
				console.log(this.$refs)
				this.$refs.canvas.init(this.initChart)
			}, 1000)
			this.deviceId = e.id
			
			const now = new Date();
			this.yeartime.year = now.getFullYear()
			this.yeartime.month = now.getMonth() + 1
			this.gettimes()
		},
		methods: {
			confirm(e) {
					setTimeout(() => {
						console.log(this.$refs)
						this.$refs.canvas.init(this.initChart)
					}, 1000)
				this.yeartime = e
				this.gettimes()
			},
			// 进行获取用电量请求
			gettimes() {
				let data = {
					deviceId:this.deviceId,
					year: this.yeartime.year,
					month: this.yeartime.month,
					groupBy: 'create_date'
				}
				this.loging=false
				this.$u.get('/app/device/electric/count', data).then((res) => {
					if (res.code == 200) {
						this.timelist = res.data
						this.chartData = this.timelist.map(item => item.usedElectriQuantity);
					    this.chartday = this.timelist.map(item => item.createDay + '日');
					
					        // console.log('用电', this.chartData, '时间', this.chartday);
						this.loging=true
						// 求用电总度数
						// this.quantity = 0
						// for (let i = 0; i < this.timelist.length; i++) {
						// 	this.quantity += this.timelist[i].recharge / 0.5
						// }
						// return this.quantity
					}
				})
			},
			
			generateWaveData(length) {
				const data = [];
				for (let i = 0; i < length; i++) {
					const y = Math.sin((i / (length - 1)) * Math.PI * 2); // 正弦函数生成波浪形状的y值
					data.push((y + 1) * 50); // 映射到0-100的范围
				}
				return data;
			},
			// async initChart() {
			// 	console.log('111111');
			// 	let that =this
			// 	// let _this = this
			// 	const option = {
			// 		grid: {
			// 			left: 60,
			// 			right: 10,
			// 			top: 10,
			// 			bottom: 30,
			// 		},
			// 		xAxis: {
			// 			type: 'category',
			// 			boundaryGap: false,
			// 			axisLine: {
			// 				show: false,
			// 			},
			// 			axisTick: {
			// 				show: false,
			// 			},
			// 			axisLabel: {
			// 				show: true,
			// 				color: '#fff',
			// 				fontSize: 11,
			// 				rotate: 0,
			// 			},
			// 			splitLine: {
			// 				show: false,
			// 			},
			// 			data:that.chartday,
			// 		},
			// 		yAxis: {
			// 			show: true,
			// 			axisLine: {
			// 				show: false,
			// 			},
			// 			axisTick: {
			// 				show: false,
			// 			},
			// 			axisLabel: {
			// 				show: true,
			// 				color: '#fff',
			// 				fontSize: 11,
			// 				formatter: function(value) {
			// 					// 保留两位小数，没有小数时显示00
			// 					return value  + '度'
			// 				},
			// 			},
			// 			splitLine: {
			// 				show: false,
			// 			},
			// 		},
			// 		visualMap: {
			// 			type: 'piecewise',
			// 			show: false,
			// 			dimension: 0,
			// 			seriesIndex: 0,
			// 			pieces: [{
			// 					gt: 1,
			// 					lt: 3,
			// 					color: 'rgba(0, 0, 180, 0.4)',
			// 				},
			// 				{
			// 					gt: 5,
			// 					lt: 7,
			// 					color: 'rgba(0, 0, 180, 0.4)',
			// 				},
			// 			],
			// 		},
			// 		series: [{
			// 			type: 'line',
			// 			smooth: 0.6,
			// 			symbol: 'none',
			// 			lineStyle: {
			// 				color: '#E0DBFF',
			// 				width: 4,
			// 			},
			// 			areaStyle: {
			// 				normal: {
			// 					color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
			// 						offset: 0,
			// 						color: '#B4B0F7'
			// 					}, ]),
			// 				},
			// 			},
			// 			data:that.chartData,
			// 		}],
			// 	};
			// 	const chart = await that.$refs.chart.init(echarts)
			// 	console.log(option,'111');
			// 	// 给折线图赋值
			// 	// option.series[0].data = that.chartData 
			// 	option.xAxis.data =  that.chartday
			// 	chart.setOption(option)
			// 	return chart 
			// },
			initChart(canvas, width, height, canvasDpr) {
				let that = this
				console.log(canvas, width, height, canvasDpr)
				const option = {
					grid: {
						left: 60,
						right: 10,
						top: 10,
						bottom: 30,
					},
					xAxis: {
						type: 'category',
						boundaryGap: false,
						axisLine: {
							show: false,
						},
						axisTick: {
							show: false,
						},
						axisLabel: {
							show: true,
							color: '#fff',
							fontSize: 11,
							rotate: 0,
						},
						splitLine: {
							show: false,
						},
						data:that.chartday,
					},
					yAxis: {
						show: true,
						axisLine: {
							show: false,
						},
						axisTick: {
							show: false,
						},
						axisLabel: {
							show: true,
							color: '#fff',
							fontSize: 11,
							formatter: function(value) {
								// 保留两位小数，没有小数时显示00
								return value  + '度'
							},
						},
						splitLine: {
							show: false,
						},
					},
					visualMap: {
						type: 'piecewise',
						show: false,
						dimension: 0,
						seriesIndex: 0,
						pieces: [{
								gt: 1,
								lt: 3,
								color: 'rgba(0, 0, 180, 0.4)',
							},
							{
								gt: 5,
								lt: 7,
								color: 'rgba(0, 0, 180, 0.4)',
							},
						],
					},
					series: [{
						type: 'line',
						smooth: 0.6,
						symbol: 'none',
						lineStyle: {
							color: '#E0DBFF',
							width: 4,
						},
						areaStyle: {
							normal: {
								color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
									offset: 0,
									color: '#B4B0F7'
								}, ]),
							},
						},
						data:that.chartData,
					}],
				};
				chart = echarts.init(canvas, null, {
					width: width,
					height: height,
					devicePixelRatio: canvasDpr
				})
				console.log(chart);
				option.xAxis.data =  that.chartday
				canvas.setChart(chart)
				chart.setOption(option)
				return chart
			},
		}
	}
</script>

<style lang="scss">
	page {
		background-color: #F7FAFE;
	}

	.page {
			padding: 0 59rpx;
	
			.title {
				margin-top: 120rpx;
				font-size: 48rpx;
				font-weight: 400;
				letter-spacing: 0rpx;
	
				color: rgba(38, 43, 55, 1);
			}
	
			.card {
				padding-top: 32rpx;
				margin-top: 46rpx;
				width: 632rpx;
				height: 586rpx;
				background: #8883F0;
				box-shadow: 0rpx 16rpx 40rpx 0rpx rgba(42, 130, 228, 0.1);
				opacity: 1;
				// filter: blur(0px);
				border-radius: 40rpx;
	
				.month {
	
					margin-left: 22rpx;
					font-size: 28rpx;
					font-family: Source Han Sans, Source Han Sans;
					font-weight: 400;
					color: #FFFFFF;
				}
	
				.tit {
					margin-top: 18rpx;
					margin-left: 22rpx;
					font-size: 20rpx;
					font-family: HarmonyOS Sans SC, HarmonyOS Sans SC;
					font-weight: 400;
					color: #FFFFFF;
	
				}
	
				.txt {
					margin-top: 2rpx;
					margin-left: 22rpx;
					font-size: 36rpx;
					font-family: HarmonyOS Sans SC, HarmonyOS Sans SC;
					font-weight: 700;
					color: #FFFFFF;
				}
	
				.echarts {
					margin-left: 22rpx;
					margin-top: 60rpx;
					// width: 100%;
					// height: 80%;
					width: 588rpx;
					height: 320rpx;
				}
			}
	
			.list {
				margin-top: 16rpx;
	//          height:280rpx;
				// overflow-y: scroll;
				.card_list {
					width: 632rpx;
					height: 88rpx;
					background: #FFFFFF;
					box-shadow: 0rpx 16rpx 40rpx 0rpx rgba(42, 130, 228, 0.1);
					opacity: 1;
					border-radius: 30rpx;
					display: flex;
					flex-wrap: nowrap;
					justify-content: space-between;
					margin-top: 16rpx;
					align-items: center;
	
					.left {
						margin-left: 52rpx;
						font-size: 28rpx;
						font-family: HarmonyOS Sans SC, HarmonyOS Sans SC;
						font-weight: 400;
						color: #808080;
					}
	
					.right {
						margin-right: 20rpx;
						font-size: 28rpx;
						font-family: HarmonyOS Sans SC, HarmonyOS Sans SC;
						font-weight: 400;
						color: #808080;
					}
				}
			}
		}
	
	
</style>