problem description
the pie chart has been drawn. To add a click event to the pie chart, you need to get the index, assigned to the this.index, but the print is still empty. It seems that in the click event, there is no way to read this.areaEnergy,
the environmental background of the problems and what methods you have tried
related codes
/ / Please paste the code text below (do not replace the code with pictures)
let myEnergypis = this.$echarts.init(document.getElementById("energyPis"))
myEnergypis.setOption({
title : {
text: "",
subtext: ":"+this.areaEnergy.maxNum,
x:"center"
},
tooltip : {
trigger: "item",
formatter: "{a} <br/>{b} : {c} ({d}%)"
},
legend: {
orient: "vertical",
left: "left",
data: this.energyPiename
},
series : [
{
name: "",
type: "pie",
selectedMode: "single",
radius : "55%",
center: ["50%", "60%"],
data:this.energyPieData,
itemStyle: {
emphasis: {
shadowBlur: 10,
shadowOffsetX: 0,
shadowColor: "rgba(0, 0, 0, 0.5)"
}
}
}
]
},true);
myEnergypis.off("click")
myEnergypis.on("click", function (params) {
var a = params.dataIndex
var energyAreaId = params.data.id
var url = params.data.url
console.log(url)
this.areaEnergyindex = a
});what result do you expect? What is the error message actually seen?
is there a way to assign values back?