yudao-dev/src/views/energy/analysis/contrastAnalysis/components/barChart.vue
2024-04-02 16:54:36 +08:00

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<template>
<div
id="analysischartBar"
style="width: 100%"
:style="{ height: chartHeight + 'px' }"></div>
</template>
<script>
import * as echarts from 'echarts';
import resize from '@/utils/chartMixins/resize';
export default {
name: 'BarChart',
mixins: [resize],
data() {
return {
chartDom: '',
chart: '',
chartHeight: this.tableHeight(250) / 2,
};
},
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(250) / 2;
});
},
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('analysischartBar');
this.chart = echarts.init(this.chartDom);
let tempArr = [];
let xData = [];
let yData = [];
let legendData = [];
if (this.chartData.length === 0) {
return false;
} else {
tempArr = this.chartData[0].trendRespVOList;
}
for (let k = 0; k < tempArr.length; k++) {
let time = '';
if (this.timeDim === '3') {
let year = tempArr[k].time.slice(0, 4);
let weak = tempArr[k].time.slice(4, 6);
time = year + ' 第 ' + weak + ' 周';
} else {
time = tempArr[k].time;
}
xData.push(time);
}
for (let i = 0; i < this.chartData.length; i++) {
let obj = {
name: this.chartData[i].objName + this.chartData[i].objCode,
type: 'bar',
barMaxWidth: 20,
label: {
show: true,
position: 'top',
},
data: [],
};
legendData.push(this.chartData[i].objName + this.chartData[i].objCode);
let temp = this.chartData[i].trendRespVOList;
for (let j = 0; j < temp.length; j++) {
let num = temp[j].useNum ? temp[j].useNum.toFixed(2) : '';
obj.data.push(num);
}
yData.push(obj);
}
var option = {
color: ['#FFDC94', '#8EF0AB', '#63BDFF', '#288AFF', '#7164FF'],
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'shadow',
},
formatter: function (params) {
return (
params[0].axisValue +
`<br>` +
params
.map((item) => {
let str = `<span style="display:inline-block;width:8px;height:8px;margin: 0 8px 0 -3px;border-radius:2px;background-color:${item.color};"></span>`;
let seriesNameStr = `<span style="display:inline-block;">${item.seriesName}</span>`;
let value = item.value ? item.value : '-';
let valueStr = `<span style="display:inline-block;margin-left:10px;color:rgba(0,0,0,0.45);">${value}</span>`;
return `<span style="display:flex; justify-content:space-between; margin-bottom: 2px">
<span>${str}${seriesNameStr}</span>
<span>${valueStr}</span>
</span>`;
})
.join(``)
);
},
},
grid: {
left: '4%',
right: '1%',
bottom: '1%',
containLabel: true,
},
legend: {
data: legendData,
right: '1%',
icon: 'rect',
itemHeight: 8,
itemWidth: 8,
},
xAxis: {
type: 'category',
data: xData,
axisLabel: {
rotate: '45',
},
},
yAxis: {
type: 'value',
},
series: yData,
};
option && this.chart.setOption(option);
},
},
};
</script>