Carta dinamik carta tinggi
Dalam bab ini kami akan memperkenalkan kepada anda carta dinamik Highcharts.
Kami telah mempelajari tentang sintaks konfigurasi Highcharts dalam bab sebelumnya. Seterusnya mari kita lihat konfigurasi Highcharts yang lain.
Kemas kini carta lengkung setiap saat
carta.events
Tambah kaedah pemuatan (peristiwa pemuatan carta) pada sifat carta.event. Menjana titik data dan menjana graf secara rawak dalam masa 1000 milisaat.
chart: {
events: {
load: function () {
// 图表每秒更新一次
var series = this.series[0];
setInterval(function () {
var x = (new Date()).getTime(), // 当期时间
y = Math.random();
series.addPoint([x, y], true, true);
}, 1000);
}
}
}Instance
Nama fail: highcharts_dynamic_spline.htm
Instance
<html>
<head>
<meta charset="UTF-8" />
<title>Highcharts 教程 | 菜鸟教程(runoob.com)</title>
<script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
</head>
<body>
<div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div>
<script language="JavaScript">
$(document).ready(function() {
var chart = {
type: 'spline',
animation: Highcharts.svg, // don't animate in IE < IE 10.
marginRight: 10,
events: {
load: function () {
// set up the updating of the chart each second
var series = this.series[0];
setInterval(function () {
var x = (new Date()).getTime(), // current time
y = Math.random();
series.addPoint([x, y], true, true);
}, 1000);
}
}
};
var title = {
text: 'Live random data'
};
var xAxis = {
type: 'datetime',
tickPixelInterval: 150
};
var yAxis = {
title: {
text: 'Value'
},
plotLines: [{
value: 0,
width: 1,
color: '#808080'
}]
};
var tooltip = {
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);
}
};
var plotOptions = {
area: {
pointStart: 1940,
marker: {
enabled: false,
symbol: 'circle',
radius: 2,
states: {
hover: {
enabled: true
}
}
}
}
};
var legend = {
enabled: false
};
var exporting = {
enabled: false
};
var series= [{
name: 'Random data',
data: (function () {
// generate an array of random data
var data = [],time = (new Date()).getTime(),i;
for (i = -19; i <= 0; i += 1) {
data.push({
x: time + i * 1000,
y: Math.random()
});
}
return data;
}())
}];
var json = {};
json.chart = chart;
json.title = title;
json.tooltip = tooltip;
json.xAxis = xAxis;
json.yAxis = yAxis;
json.legend = legend;
json.exporting = exporting;
json.series = series;
json.plotOptions = plotOptions;
Highcharts.setOptions({
global: {
useUTC: false
}
});
$('#container').highcharts(json);
});
</script>
</body>
</html><🎜<>Jalankan Instance» 🎜>Klik butang "Jalankan Contoh" untuk melihat tika dalam talian
Carta Pai Highcharts
carta.events
Tambah kaedah klik (klik peristiwa yang berlaku pada kawasan lukisan seluruh carta) dalam atribut carta.event. Kaedah ini menambah titik data baharu apabila klik berlaku pada kawasan plot carta.
chart: {
events: {
click: function (e) {
// 获取点击坐标和数据项
var x = e.xAxis[0].value,
y = e.yAxis[0].value,
series = this.series[0];
// 添加点击的坐标
series.addPoint([x, y]);
}
}
}Instance
