Highchart:如何通过单击按钮更新动态图表? [英] Highchart: how to update a dynamic chart by clicking on a button?
问题描述
我打算在我的网页上放置一个按钮，以便在单击按钮时，一个点将被添加到图表中，而不会重绘整个图表(图表是此 http://www.highcharts.com/demo/dynamic-update ).但是，我当前的代码无法正常工作.
I intend to have a button on my web page so that upon clicking a button, a point will be added to a chart without redrawing the whole chart (the chart is a modified version of this http://www.highcharts.com/demo/dynamic-update). However, my current code is not working.
以下是相关代码: http://jsfiddle.net/wtvaz9gc/7/
var series;
$(function drawCharts(numberOfPoint) {
// if(typeof chartData == undefined){
// chartData = $(dataStore.getXml());
// }
$("#b").click(function(){
series.addPoint([3,3]);
})
$(document).ready(function () {
Highcharts.setOptions({
global: {
useUTC: false
}
});
$('#container').highcharts({
chart: {
type: 'line',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load: function () {
series = this.series[0];
// window.myGlobal1 = this.series[0].data[this.series[0].data.length - 1].y;
// console.log(window.myGlobal1 + " " + this.series[0].data[this.series[0].data.length - 1].y);
},
}
},
title: {
text: ''
},
xAxis: {
title: {
text: 'Jahre'
},
// gridLineWidth: 0,
// lineWidth:1,
startOnTick: true,
tickPixelInterval: 40,
min: 0,
max: 10,
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
yAxis: {
title: {
text: 'Vermögen(in EUR)'
},
labels: {
enabled: true
},
min: 0,
max: 100,
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
enabled : false,
formatter: function () {
return '<b>' + this.series.name + '</b><br/>' +
Highcharts.dateFormat('%Y-%m-%d %H:%M:%S', this.x) + '<br/>' +
Highcharts.numberFormat(this.y, 2);
}
},
legend: {
enabled: false
},
exporting: {
enabled: false
},
series: [{
name: 'Random data',
data: ($(function () {
// generate an array of random data
var data = [],
time = (new Date()).getTime(),
i, preValue;
for (i = 0; i < numberOfPoint; i += 1) {
if(i == 0){
data.push({
x: i,
y: 10
});
} else {
data.push({
x: i,
y: chartData["wealth"][0][i]
});
}
}
// showMsg(data);
// console.log(data);
return data;
}()))
}]
});
});
});
当我尝试在chrome中运行它时，收到以下错误报告: highcharts.js:未捕获的TypeError:i.splice不是函数 addPoint @ highcharts.js:...
When I tries to run it in chrome, I got the following error report: highcharts.js:Uncaught TypeError: i.splice is not a function addPoint @ highcharts.js:...
在这种情况下，应如何使用函数"addPoint"? 还是应该使用其他方法来达到目的?
How should I use the function "addPoint" in this case? Or should I use other method to achieve the purpose?
推荐答案
生成初始数据的函数存在问题，但是addPoint可以正常工作:
There is something wrong with the function generating your initial data, but addPoint is working fine:
var series;
$(function drawCharts(numberOfPoint) {
// if(typeof chartData == undefined){
// chartData = $(dataStore.getXml());
// }
$("#b").click(function(){
series.addPoint([10,10]);
})
$(document).ready(function () {
Highcharts.setOptions({
global: {
useUTC: false
}
});
$('#container').highcharts({
chart: {
type: 'line',
animation: Highcharts.svg, // don't animate in old IE
marginRight: 10,
events: {
load: function () {
series = this.series[0];
// window.myGlobal1 = this.series[0].data[this.series[0].data.length - 1].y;
// console.log(window.myGlobal1 + " " + this.series[0].data[this.series[0].data.length - 1].y);
},
}
},
title: {
text: ''
},
xAxis: {
title: {
text: 'Jahre'
},
// gridLineWidth: 0,
// lineWidth:1,
startOnTick: true,
tickPixelInterval: 40,
min: 0,
max: 10,
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
yAxis: {
title: {
text: 'Vermögen(in EUR)'
},
labels: {
enabled: true
},
min: 0,
max: 100,
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
},
tooltip: {
enabled : false,
formatter: function () {
return '<b>' + this.series.name + '</b><br/>' +
Highcharts.dateFormat('%Y-%m-%d %H:%M:%S', this.x) + '<br/>' +
Highcharts.numberFormat(this.y, 2);
}
},
legend: {
enabled: false
},
exporting: {
enabled: false
},
series: [{
name: 'Random data',
data: [1,2,3]
}]
});
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<div id="container" style="min-width: 310px; height: 400px; margin: 0 auto"></div>
<button id="b" href="#" >AddPoints</button>
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