我想在图表中添加范围选择器，但我不知道该怎么做。我尝试了 jsfiddle 的一些示例，但它不起作用。
这是我的代码:
<meta http-equiv="refresh" content="65;url=http://localhost/23-1_chart.php"/>
<title>XXX</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<link rel="stylesheet" href="css/XXX.css">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js" type="text/javascript"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/modules/exporting.js"></script>
<script type="text/javascript" src="data.js" ></script>
</head>
<body>
<div id="chart" style="height: 400px; margin: 0 auto"></div>
<script>
$(function() {
//Highcharts with mySQL and PHP - Ajax101.com
var Voc_value = [];
var time = [];
var switch1 = true;
$.get('23-1_values.php', function(data) {
data = data.split('/');
for (var i in data) {
if (switch1 == true) {
time.push(data[i]);
switch1 = false;
} else {
Voc_value.push(parseFloat(data[i]));
switch1 = true;
}
}
time.pop(); // cursor
$('#chart').highcharts({
chart : {
type : 'spline'
},
title : {
text : 'VOC-Value-A.ROOM'
},
subtitle : {
text : 'Room A'
},
xAxis : {
title : {
text : 'time'
},
categories : time
},
yAxis : {
title : {
text : 'VOC-value in ppm'
},
labels : {
formatter : function() {
return this.value + 'VOCvalue'
}
}
},
tooltip : {
crosshairs : true,
shared : true,
valueSuffix : 'ppm'
},
plotOptions : {
spline : {
marker : {
radius : 4,
lineColor : '#666666',
lineWidth : 1
}
}
},
series : [{
name : 'VOC-value in ppm',
data : Voc_value
}]
});
});
});</script>
首先，我读取 SQL 值并将其放入 23-1_values.php 中。 我的 sql 值正在从此 php-page 23.1_values.php 读取，然后构建图表。我在横坐标轴上有日期时间(日-小时-分钟-秒)，在纵坐标轴上有 ppm 值 我获得的值太多，想要减少日期格式并在图表中添加范围选择器。
我该怎么做？
谢谢
最佳答案
我真的不知道我做了什么，但它现在正在发挥作用。非常感谢您帮助我。这是代码:
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>XXXXXXXXX</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="http://code.highcharts.com/stock/highstock.js"></script>
<script src="http://code.highcharts.com/highcharts.js"></script>
<script src="http://code.highcharts.com/stock/modules/exporting.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$.getJSON("XXX.php", function(data) {
// Create a timer
var start = + new Date();
// Create the chart
$('#container').highcharts('StockChart', {
chart: {
events: {
load: function(chart) {
this.setTitle(null, {
text: 'Built chart at '+ (new Date() - start) +'ms'
});
}
},
zoomType: 'x'
},
rangeSelector: {
buttons: [{
type: 'day',
count: 1,
text: '24h'
}, {
type: 'week',
count: 1,
text: '1w'
}, {
type: 'month',
count: 1,
text: '1m'
}, {
type: 'month',
count: 6,
text: '6m'
}, {
type: 'year',
count: 1,
text: '1y'
}, {
type: 'all',
text: 'All'
}],
selected: 0
},
yAxis: {
title: {
text: 'XX'
}
},
title: {
text: 'XX'
},
subtitle: {
text: 'Built chart at...' // dummy text to reserve space for dynamic subtitle
},
series: [{
name: 'XX',
type: 'area',
data: data,
tooltip: {
valueDecimals: 1,
valueSuffix: ' ppm'
},
fillColor : {
linearGradient : {
x1: 0,
y1: 0,
x2: 0,
y2: 1
},
stops : [[0, Highcharts.getOptions().colors[0]], [1, 'rgba(0,0,0,0)']]
},
}/*,
{
name: 'Temperatur',
type: 'area',
data: datarasp,
tooltip: {
valueDecimals: 1,
valueSuffix: ' °C'
},
fillColor : {
linearGradient : {
x1: 0,
y1: 0,
x2: 0,
y2: 1
},
stops : [[0, Highcharts.getOptions().colors[0]], [1, 'rgba(0,0,0,0)']]
},
}*/]
});
});
});
</script>
</head>
<body>
<div id="container" style="height: 500px; min-width: 500px"></div>
</body>
</html>
希望对大家有帮助
关于javascript - Highchart 与 html 网站中 SQL 数据的范围选择器，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28042232/