highcharts中的實時數據顯示
[英]Real time data display in highcharts
問題描述
我想在我的 MYSQL 數據庫中的 highcharts 中顯示實時數據，我嘗試了 setInterval 和 setTimeout 和 chart.redraw() 等方法，但似乎無法使其工作。 我還嘗試過 highcharts 鏈接中的動態更新圖表：在此處enter code here https://jsfiddle.net/gh/get/library/pure/highcharts/highcharts/tree/master/samples/stock/demo/dynamic-update但似乎無法將隨機數據語法轉換為我的數據庫數據。 我的代碼是：
<html>
<head>
<script src="https://code.highcharts.com/stock/highstock.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<script src="https://code.highcharts.com/modules/export-data.js"></script>
<script src="https://code.highcharts.com/modules/accessibility.js">
</script>
<script src="https://code.highcharts.com/stock/modules/drag-panes.js">
</script>
<link rel="stylesheet" type="text/css" href="/public/oi chart.css">
</head>
<figure class="highcharts-figure">
<div id="container"></div>
</figure>
<script type="text/javascript">
$(document).ready(function() {
Highcharts.stockChart('container', {
options = {
chart: {
renderTo: 'container',
defaultSeriesType: 'line'
},
Highcharts.stockChart('container', {
rangeSelector: {
enabled: true,
selected: customRange,
buttons: [{
type: 'day',
count: 1,
text: '1D'
}, {
type: 'week',
count: 1,
text: '1W'
}, {
type: 'week',
count: 2,
text: '2W'
}, {
type: 'month',
count: 1,
text: '1M'
}, {
type: 'all',
text: 'All'
}]
},
time: {
timezoneOffset: timezone
},
events: {
load: function requestData() {
$.ajax({
url: 'temp_chart.js',
success: function(points) {
var series = chart.series,
shift;
$.each(series, function(i, s) {
shift = s.data.length > 1;
s.addPoint(points[i], true, true);
});
setTimeout(requestData, 1000);
chart.redraw();
},
cache: false
});
}
},
title: {
text: 'Temperature',
},
subtitle: {
text: 'temperature in maharashtra',
},
yAxis: {
title: {
text: 'temperature'
},
resize: {
enabled: true
}
},
xAxis: {
type: 'datetime'
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle'
},
plotOptions: {
series: {
marker: {
enabled: false
},
label: {
connectorAllowed: false
},
}
},
series: [{
name: 'Mumbai',
data: []
}, {
name: 'Pune',
data: []
}],
};
$.getJSON('temp_chart.js', function(json) {
data1 = [<% data array %>];
data2 = [<% data array %>];
$.each(json, function(key, value) {
data1.push([value[0], value[1]]);
data2.push([value[0], value[2]]);
});
options.series[0].data = data1;
options.series[1].data = data2;
chart = new Highcharts.stockChart(options);
});
responsive: {
rules: [{
condition: {
maxWidth: 500
},
chartOptions: {
legend: {
layout: 'horizontal',
align: 'center',
verticalAlign: 'bottom'
}
}
}]
}
});
</script>
</html>~
1 個解決方案
解決方案1
0 2021-04-26 13:56:48
請注意，加載回調應該嵌套在chart.events object 配置中。 API: https://api.highcharts.com/highcharts/chart.events.load
用Highcharts繪制實時數據圖
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