BarChart.vue
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<template>
<div :id="chartId" class="chart-container"></div>
</template>
<script>
import * as echarts from 'echarts'
export default {
props: {
title: {
type: String,
default: ''
},
unit: {
type: String,
default: '万(㎡)'
},
tiplabel: {
type: String,
default: ''
},
chartId: {
type: String,
required: true
},
data: {
type: Array,
default: () => {
return []
}
},
showPercent: {
type: Boolean,
default: true
}
},
data() {
return {
myChart: undefined
}
},
watch: {
data: {
handler: function(newVal, oldVal) {
this.init()
this.setOptions()
},
deep: true
}
},
mounted() {
this.init()
},
methods: {
init() {
this.myChart = echarts.init(document.getElementById(this.chartId))
this.setOptions()
window.addEventListener('resize', () => {
setTimeout(() => {
this.myChart.resize()
}, 300)
})
},
setOptions() {
if(!this.myChart) {
return
}
let option
if (this.data && this.data.length == 0 ) {
option = {
title: {
text: '暂无数据',
x: 'center',
y: 'center',
textStyle: {
fontSize: 18,
fontWeight: 'normal',
color: '#1578D9'
}
}
}
} else {
const xData = this.data ? this.data.map(item => item.name) : []
const yData = this.data ? this.data.map(item => item.value) : []
option = {
title: {
text: this.title,
x: 'center',
top: '20',
textStyle: {
fontSize: 18,
fontWeight: 'normal',
color: '#000'
}
},
tooltip: {
trigger: 'axis',
axisPointer: {
type: 'shadow'
}
},
legend: {
bottom: '10'
},
grid: {
left: '65',
bottom: '60',
containLabel: false
},
xAxis: {
type: 'value',
boundaryGap: [0, 0.01]
},
yAxis: {
type: 'category',
data: xData
},
series: [
{
name: '最高',
type: 'bar',
data: [180, 350]
},
{
name: '平均值',
type: 'bar',
data: [150, 240]
},
{
name: '最低',
type: 'bar',
data: [120, 200]
}
]
}
}
this.myChart.clear()
this.myChart.setOption(option)
}
}
}
</script>
<style scoped lang="scss">
.chart-container {
height: 100%;
}
</style>