当我在由 JSON 文件馈送的基于线的实时图上执行堆栈选项时，我得到了要显示的图例，但我丢失了图上的线。
没有堆叠，也没有线条。有人遇到过这种情况吗？
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Real Time Chart</title>
<link href="layout.css" rel="stylesheet" type="text/css">
<script language="javascript" type="text/javascript" src="../excanvas.min.js"></script>
<script language="javascript" type="text/javascript" src="../jquery-1.8.1.js"></script>
<script language="javascript" type="text/javascript" src="../jquery.flot.js"></script>
<script language="javascript" type="text/javascript" src="../jquery.flot.stack.js"></script>
<script language="javascript" type="text/javascript" src="../jquery.flot.axislabels.js"></script>
</head>
<body>
<h1>Test</h1>
<table>
<tr>
<td>
<div id="controlm" style="width:1200px;height:600px; margin:0 auto;"></div>
</td>
<td>
<p id="Legend" style="width:200px;margin-left:10px"></p>
</td>
</tr>
</table>
<script type="text/javascript">
$(function () {
// variables setup
var data = [];
var controlm = $("#controlm");
var stack = 0, bars = true, lines = true, steps = false;
var options = {
series: {stack: stack,
shadowSize: 0,
lines: {show: lines, fill: false, steps: steps}
},
xaxis: { mode: "time", timeformat: "%Hh%M", axisLabel: 'Tijdlijn', position: 'bottom', axisLabelPadding: 10},
yaxis: { mode: "number", tickSize: 100, max: 1000, axisLabel: "Aantal Jobs", position: 'left', axisLabelPadding: 10},
grid: { hoverable: true, clickable: true, backgroundColor: { colors: ["#FFFFFF", "#999999"] }, markings: [{lineWidth:4, yaxis: {from: 3500, to: 3500}, color: "#000000"}]},
legend: {container: $("#Legend"), show: true, backgroundOpacity:0}
};
function showTooltip(x, y, contents) {
$('<div id="tooltip">' + contents + '</div>').css( {
position: 'absolute',
display: 'none',
top: y + 15,
left: x + 15,
border: '1px solid #088A29',
padding: '2px',
'background-color': '#A9F5BC',
opacity: 1
}).appendTo("body").fadeIn(0);
}
var previousPoint = null;
$("#controlm").bind("plothover", function (event, pos, item) {
$("#x").text(pos.x.toFixed(2));
$("#y").text(pos.y.toFixed(2));
if (item) {
if (previousPoint != item.dataIndex) {
previousPoint = item.dataIndex;
$("#tooltip").remove();
var x = item.datapoint[0].toFixed(2),
y = item.datapoint[1].toFixed(2);
var tooltipdate = new Date(parseInt(x));
var year = tooltipdate.getFullYear();
var month = (tooltipdate.getMonth() + 1);
if (month < 10) {month = "0" + month};
var day = tooltipdate.getDate();
if (day < 10) {day = "0" + day};
var hour = tooltipdate.getUTCHours();
if (hour < 10) {hour = "0" + hour};
var min = tooltipdate.getMinutes();
if (min < 10) {min = "0" + min};
var content = day + "/" + month + "/" + year + " " + hour + ":" + min;
showTooltip(item.pageX, item.pageY,"<b>" + content + "</b><br />" +
item.series.label);
}
}
else {
$("#tooltip").remove();
previousPoint = null;
}
});
function fetchData() {
$.ajax({
// usually, we'll just call the same URL, a script
// connected to a database, but in this case we only
// have static example files so we need to modify the
// URL
url: "test/blabla.txt",
method: 'GET',
dataType: 'json',
success: onDataReceived
});
function onDataReceived(series) {
data = [series];
//fill array
$.each(series, function(key) {//, val) {
data.push(series[key]);
});
$.plot(controlm, data, options);
}
return data
}
plot = $.plot(controlm, fetchData(), options);
function update() {
plot.setData([fetchData()]);
plot.draw();
setTimeout(update, 120000);
}
update();
});
</script>
</body>
</html>
部分 JSON 数据：
[ { "label": "Totaal Jobs QOS : 41", "data": [[1349364129000,42],[1349364427000,42],[1349364727000,42],[1349365026000,42],[1349365327000,42],[1349365628000,42],[1349365927000,42],[1349366225000,42],[1349366532000,42],[1349366826000,42],[1349367126000,42],[1349367428000,42],[1349367728000,42],[1349368026000,42],[1349368324000,42],[1349368626000,42],[1349368926000,42],[1349369226000,42],[1349369527000,42],[1349369826000,42],[1349370126000,42],[1349370424000,42],[1349370726000,42],[1349371026000,42],[1349371325000,42],[1349371626000,42],[1349371926000,42],[1349372226000,42],[1349372526000,42],[1349372827000,42],[1349373127000,42],[1349373426000,42],[1349377412000,42],[1349377685000,42],[1349377984000,42],[1349378286000,42],[1349378588000,42],[1349378885000,42],[1349379187000,46],[1349379484000,50],[1349379785000,50],[1349380085000,50],[1349380391000,50],[1349380682000,50],[1349380989000,50],[1349381289000,50],[1349381583000,50],[1349381885000,50],[1349382186000,50],[1349382488000,50],[1349382782000,50],[1349383085000,50],[1349383382000,50],[1349383686000,50],[1349383986000,50],[1349384283000,50],[1349384589000,50],[1349384883000,50],[1349385186000,50],[1349385486000,50],[1349385789000,50],[1349386089000,50],[1349386389000,50],[1349386689000,50],[1349386989000,50],[1349387286000,50],[1349387589000,50],[1349387888000,50],[1349388189000,50],[1349388486000,50],[1349388789000,50],[1349389086000,50],[1349389385000,50],[1349389689000,50],[1349389989000,50],[1349390289000,50],[1349390589000,50],[1349390887000,50],[1349391189000,50],[1349391486000,50],[1349391789000,50],[1349392087000,50],[1349392386000,50],[1349392685000,50],[1349392990000,50],[1349393285000,50],[1349393589000,50],[1349393887000,50],[1349394184000,50],[1349394485000,50],[1349394789000,50],[1349395083000,50],[1349395384000,50],[1349395688000,50],[1349395985000,50],[1349396283000,50],[1349396590000,50],[1349396886000,50],[1349397187000,50],[1349397484000,50],[1349397784000,50],[1349398085000,50],[1349398390000,50],[1349398686000,50],[1349398984000,50],[1349399290000,50],[1349399589000,50],[1349399887000,50],[1349400186000,50],[1349400485000,50],[1349400787000,50],[1349401084000,50],[1349401385000,50],[1349401687000,50],[1349401990000,50],[1349402286000,50],[1349402589000,50],[1349402890000,50],[1349403189000,50],[1349403484000,50],[1349403784000,50],[1349404087000,50],[1349404384000,50],[1349404689000,50],[1349404990000,50],[1349405286000,50],[1349405586000,50],[1349405889000,50],[1349406189000,50],[1349406485000,50],[1349406786000,50],[1349407087000,50],[1349407389000,50],[1349407684000,50],[1349407987000,50],[1349408291000,50],[1349408589000,50],[1349408886000,50],[1349409185000,50],[1349409487000,50],[1349409786000,50],[1349410086000,50],[1349410389000,50],[1349410687000,50],[1349410984000,50],[1349411284000,50],[1349411590000,50],[1349411890000,50],[1349412189000,50],[1349412487000,50],[1349412785000,50],[1349413086000,50],[1349413387000,50],[1349413687000,50],[1349413989000,50],[1349414286000,50],[1349414590000,50],[1349414886000,50],[1349415186000,50],[1349415484000,50],[1349415784000,50],[1349416087000,50],[1349416389000,50],[1349416689000,50],[1349416986000,50],[1349417289000,50],[1349417584000,50],[1349417884000,50],[1349418186000,50],[1349418486000,50],[1349418785000,50],[1349419090000,50],[1349419389000,50],[1349419689000,50],[1349419989000,50],[1349420286000,50],[1349420586000,50],[1349420890000,50],[1349421186000,50],[1349421486000,50],[1349421784000,50],[1349422086000,50],[1349422384000,50],[1349422686000,50],[1349422989000,50],[1349423285000,50],[1349423584000,50],[1349424449000,38],[1349424726000,38],[1349425030000,38],[1349425330000,38],[1349425629000,38],[1349425926000,38],[1349426225000,38],[1349426526000,38],[1349426829000,38],[1349427124000,38],[1349427427000,38],[1349427727000,38],[1349428029000,38],[1349428327000,38],[1349428630000,38],[1349428930000,38],[1349428951000,38],[1349429526000,38],[1349429825000,38],[1349430123000,38],[1349430424000,38],[1349430725000,38],[1349431029000,38],[1349431329000,38],[1349431624000,38],[1349431927000,38],[1349432226000,38],[1349432525000,38],[1349432830000,38],[1349433125000,38],[1349433424000,38],[1349433726000,38],[1349434024000,38],[1349434324000,38],[1349434624000,38],[1349434924000,39],[1349435230000,39],[1349435526000,39],[1349435826000,39],[1349436127000,39],[1349436426000,39],[1349436727000,39],[1349437024000,39],[1349437326000,39],[1349437629000,39],[1349437929000,41],[1349438226000,41],[1349438527000,41],[1349438827000,41],[1349439127000,41],[1349439428000,41],[1349439728000,41],[1349440024000,41],[1349440324000,41],[1349440630000,41],[1349440927000,41],[1349441229000,41],[1349441524000,41],[1349441827000,41],[1349442127000,41],[1349442430000,41],[1349442726000,41],[1349443027000,41],[1349443326000,41],[1349443627000,41],[1349443925000,41],[1349444230000,41],[1349444527000,41],[1349444826000,41],[1349445126000,41],[1349445427000,41],[1349445726000,41],[1349446030000,41],[1349446324000,41],[1349446630000,41],[1349446927000,41],[1349447227000,41],[1349447527000,41],[1349447824000,41],[1349448126000,41],[1349448426000,41],[1349448727000,41],[1349449027000,41],[1349449329000,41],[1349449627000,41],[1349449926000,41],[1349450226000,41]] }, { "label": "Totaal Jobs QXS : 1", "data": [[1349364129000,1],[1349364427000,1],[1349364727000,1],[1349365026000,1],[1349365327000,1],[1349365628000,1],[1349365927000,1],[1349366225000,1],[1349366532000,1],[1349366826000,1],[1349367126000,1],[1349367428000,1],[1349367728000,1],[1349368026000,1],[1349368324000,1],[1349368626000,1],[1349368926000,1],[1349369226000,1],[1349369527000,1],[1349369826000,1],[1349370126000,1],[1349370424000,1],[1349370726000,1],[1349371026000,1],[1349371325000,1],[1349371626000,1],[1349371926000,1],[1349372226000,1],[1349372526000,1],[1349372827000,1],[1349373127000,1],[1349373426000,1],[1349377412000,1],[1349377685000,1],[1349377984000,1],[1349378286000,1],[1349378588000,1],[1349378885000,1],[1349379187000,1],[1349379484000,1],[1349379785000,1],[1349380085000,1],[1349380391000,1],[1349380682000,1],[1349380989000,1],[1349381289000,1],[1349381583000,1],[1349381885000,1],[1349382186000,1],[1349382488000,1],[1349382782000,1],[1349383085000,1],[1349383382000,1],[1349383686000,1],[1349383986000,1],[1349384283000,1],[1349384589000,1],[1349384883000,1],[1349385186000,1],[1349385486000,1],[1349385789000,1],[1349386089000,1],[1349386389000,1],[1349386689000,1],[1349386989000,1],[1349387286000,1],[1349387589000,1],[1349387888000,1],[1349388189000,1],[1349388486000,1],[1349388789000,1],[1349389086000,1],[1349389385000,1],[1349389689000,1],[1349389989000,1],[1349390289000,1],[1349390589000,1],[1349390887000,1],[1349391189000,1],[1349391486000,1],[1349391789000,1],[1349392087000,1],[1349392386000,1],[1349392685000,1],[1349392990000,1],[1349393285000,1],[1349393589000,1],[1349393887000,1],[1349394184000,1],[1349394485000,1],[1349394789000,1],[1349395083000,1],[1349395384000,1],[1349395688000,1],[1349395985000,1],[1349396283000,1],[1349396590000,1],[1349396886000,1],[1349397187000,1],[1349397484000,1],[1349397784000,1],[1349398085000,1],[1349398390000,1],[1349398686000,1],[1349398984000,1],[1349399290000,1],[1349399589000,1],[1349399887000,1],[1349400186000,1],[1349400485000,1],[1349400787000,1],[1349401084000,1],[1349401385000,1],[1349401687000,1],[1349401990000,1],[1349402286000,1],[1349402589000,1],[1349402890000,1],[1349403189000,1],[1349403484000,1],[1349403784000,1],[1349404087000,1],[1349404384000,1],[1349404689000,1],[1349404990000,1],[1349405286000,1],[1349405586000,1],[1349405889000,1],[1349406189000,1],[1349406485000,1],[1349406786000,1],[1349407087000,1],[1349407389000,1],[1349407684000,1],[1349407987000,1],[1349408291000,1],[1349408589000,1],[1349408886000,1],[1349409185000,1],[1349409487000,1],[1349409786000,1],[1349410086000,1],[1349410389000,1],[1349410687000,1],[1349410984000,1],[1349411284000,1],[1349411590000,1],[1349411890000,1],[1349412189000,1],[1349412487000,1],[1349412785000,1],[1349413086000,1],[1349413387000,1],[1349413687000,1],[1349413989000,1],[1349414286000,1],[1349414590000,1],[1349414886000,1],[1349415186000,1],[1349415484000,1],[1349415784000,1],[1349416087000,1],[1349416389000,1],[1349416689000,1],[1349416986000,1],[1349417289000,1],[1349417584000,1],[1349417884000,1],[1349418186000,1],[1349418486000,1],[1349418785000,1],[1349419090000,1],[1349419389000,1],[1349419689000,1],[1349419989000,1],[1349420286000,1],[1349420586000,1],[1349420890000,1],[1349421186000,1],[1349421486000,1],[1349421784000,1],[1349422086000,1],[1349422384000,1],[1349422686000,1],[1349422989000,1],[1349423285000,1],[1349423584000,1],[1349449329000,1],[1349449627000,1],[1349449926000,1],[1349450226000,1]] }, { "label": "Totaal Jobs SDM : 34", "data": [[1349449329000,34],[1349449627000,34],[1349449926000,34],[1349450226000,34]] }, { "label": "Totaal Jobs SIS : 1", "data": 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}, { "label": "Totaal Jobs SOS : 44", "data": 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}]
您提供给 Flot 的数据格式不正确。
将"数据 = [系列];"更改为"数据 = [];"
使用堆叠插件时，请确保基于时间的数据系列对齐（所有系列的开始/结束日期都相同）。否则，可能不会显示所有数据点。
为了使代码更清晰，您也可以这样做：
function updateData() {
$.ajax({
// usually, we'll just call the same URL, a script
// connected to a database, but in this case we only
// have static example files so we need to modify the
// URL
url: "blabla.txt",
method: 'GET',
dataType: 'json',
success: onDataReceived
});
function onDataReceived(series) {
plot.setData(series);
plot.setupGrid();
plot.draw();
}
}
var plot = $.plot(controlm, [], options);
setInterval(updateData, 120000);
updateData();