barChart.vue
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<template>
<view class="linechart">
<div :id='bindId' class="chart"></div>
</view>
</template>
<script>
export default {
data () {
return {
yMax:0
}
},
mounted() {
},
watch:{
bindId:function(newValue,oldValue){
},
chartData:{
handler:function(newValue,oldValue){
this.drawBar();
},
deep:true
},
},
props:{
bindId:{
type:String,
default:''
},
chartData: {
type: Object,
default: function(){
return {}
}
}
},
methods: {
drawBar() {
var yMax=0;
let myChart = {};
let chartDom = document.getElementById(this.bindId);
myChart = this.echarts.init(chartDom);
myChart.showLoading('default', {
text: '',
color: '#409eff'
});
var option = {
title:{
show:true,
text:this.chartData.title,
left: uni.upx2px(18.11),
top: uni.upx2px(10.86),
textStyle: {
fontWeight: "normal",
fontSize: uni.upx2px(25.4),
color: '#4A4A4A'
}
},
backgroundColor: '#fff',
color: ["#0069FF", "#3BB8FF", "#6784e3", "#ff9631", "#ffc62e","#7460ee","#eb6100"],
tooltip:{
padding:[5,15],
position: function(pos, params, dom, rect, size){
var obj={};
if(pos[0]+size.contentSize[0]>size.viewSize[0]){
obj['right']=size.viewSize[0]-pos[0]
}else{
obj['left']=pos[0]
}
if(pos[1]+size.contentSize[1]>size.viewSize[1]){
obj['bottom']=size.viewSize[1]-pos[1]
}else{
obj['top']=pos[1]
}
return obj;
},
},
grid: {
left:uni.upx2px(76.08),
right: uni.upx2px(40.98),
top: uni.upx2px(83.33),
bottom: uni.upx2px(9.05)+uni.upx2px(21.74)+12+uni.upx2px(21.74)+12
},
yAxis: {
minInterval :1,
scale: true,
axisLabel: {
textStyle: {
color: '#9B9B9B',
fontSize:uni.upx2px(21.74)
},
formatter:function(value){
if(value>yMax){
yMax=value;
}
return value
}
},
axisLine : {
show: false,
lineStyle: {
color: '#888'
}
},
axisTick:{
show:false
},
splitLine:{
lineStyle: {
color: '#f3f3f3'
}
}
},
xAxis: {
axisTick:{
show:false
},
axisLine : {
show: false,
lineStyle: {
color: '#888'
}
},
axisLabel : {
textStyle: {
color: '#9B9B9B',
fontSize:uni.upx2px(21.74)
}
},
splitLine : {
show: false
}
},
legend : {
type:"scroll",
orient: "horizontal",
textStyle: {
fontSize: uni.upx2px(21.74),
color:'rgba(74,74,74,1)'
},
itemWidth: uni.upx2px(12.7),
itemHeight: uni.upx2px(12.7),
itemGap: uni.upx2px(5.62),
bottom: uni.upx2px(9.05),
data: [],
selected:{}
},
series:JSON.parse(JSON.stringify(this.chartData.series))
}
if(this.chartData.series.length>1){
this.chartData.series.forEach((item,index)=>{
var legendObj = {};
if(index<2){
option.legend.selected[item.name]=true
}else{
option.legend.selected[item.name]=false
}
legendObj.name = item.name;
legendObj.icon="emptyCircle"
option.legend.data.push(legendObj);
item.symbol="emptyCircle";
item.symbolSize=uni.upx2px(12.7)
})
}
option.xAxis.data =JSON.parse(JSON.stringify(this.chartData.xaxis.data));
// myChart.clear();
setTimeout(() => {
myChart.hideLoading();
}, 500);
myChart.setOption(option);
// option.grid.left=uni.upx2px(String(yMax).length*uni.upx2px(21.74))+uni.upx2px(18.11)
option.grid.left=uni.upx2px(18.11)+30+String(yMax).length*uni.upx2px(9.05)
myChart.setOption(option);
}
}
}
</script>
<style>
.chart{
width:706.52upx;
height:438.4upx;
margin: 0 auto;
background: #FFFFFF;
margin-bottom: 18.2upx;
border-radius:7.24upx;
overflow: hidden;
}
</style>