我的图表以前是自动更新的,但是在我解析数据的方式进行了一些更改之后,它们现在仅在更改视图时才会呈现。环顾四周之后,似乎需要调用一个更新函数,但是我不确定如何引用它以及在何处调用它?
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答案 0 :(得分:1)
您的数据必须在Vue的数据之内,并添加更新数据方法
<template>
<div class="container">
<line-chart v-for="(photon,key) in photons" :key="photon.id" :ytitle="key" :data="photon.psVoltage" ytitle="ps-voltage" height="250px"></line-chart>
</div>
</template>
<script>
export default {
data() {
return {
psVoltage: null,
photons: null,
}
},
mounted() {
this.streamData();
},
methods: {
updateData(e) {
var parsedData = JSON.parse(e.data);
if (parsedData.coreid in this.photons) {
this.photons[parsedData.coreid].psVoltage.push([parsedData.published_at, parsedData.data])
} else {
this.photons[parsedData.coreid] ={}
this.photons[parsedData.coreid].psVoltage=[]
}
},
streamData() {
// LIVE PUSH EVENTS
if (typeof (EventSource) !== "undefined") {
var eventSource = new EventSource(
"http://10.10.30.13:8030/v1/Events/?access_token=687b5aeb26375742de5d36b65f");
eventSource.addEventListener('open', function (e) {
console.log("Opened connection to event stream!");
}, false);
eventSource.addEventListener('error', function (e) {
console.log("Errored!");
}, false);
eventSource.addEventListener('ps-voltage',updateData , false);
}
}
}
}
</script>
<style scoped>
h2 {
text-align: center;
}
</style>