I am trying to use a plugin to print some data that is written to a JSON file. It is not so difficult to do, but I can not find something that works ... can you help me.
This is the page I wrote:
$(function () {
var data;
$.getJSON("1.json", function(json) {
var data = json;
});
var options = {
legend: {
show: true,
margin: 10,
backgroundOpacity: 0.5
},
points: {
show: true,
radius: 3
},
lines: {
show: true
}
};
var plotarea = $("#placeholder");
$.plot(plotarea , data, options);
});
while the 1.json file contains all of the following:
{ label: "Values",
data: [
[1, 50.026],
[2, 50.028],
[3, 50.029],
[4, 50.026],
[5, 50.025],
[6, 50.016]
]
}
@MarcoJohannesen Even if I write "console.log (data)" after calling the JSON script, it still does not work and a message does not appear on the screen. Using the Chrome utility (I don’t remember the name ;-)) I see that the hte 1.json file is loaded correctly. I think the problem is that the script is executed first, after which the 1.json file is loaded. I made a small change to the page. You can see the demo on this page.
This is the code for page 1.htm:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script language="javascript" type="text/javascript" src="jquery.js"></script>
<script language="javascript" type="text/javascript" src="jquery.flot.js"></script>
</head>
<body>
<h1>Graph</h1>
<div id="placeholder" style="width:600px;height:300px;"></div>
<script language="javascript" type="text/javascript">
$(function () {
var data;
$.getJSON("1.json", function(json) {
var data = json;
});
console.log(data);
var plotarea = $("#placeholder");
$.plot(plotarea , data);
});
</script>
</body>
</html>
1.json( )
[{ label: "Values",
data: [
[1, 50.026],
[2, 50.028],
[3, 50.029],
[4, 50.026],
[5, 50.025],
[6, 50.016]
]
}}
. , :
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script language="javascript" type="text/javascript" src="jquery.js"></script>
<script language="javascript" type="text/javascript" src="jquery.flot.js"></script>
</head>
<body>
<h1>Graph</h1>
<script language="javascript" type="text/javascript">
$(document).ready(function(){
$.getJSON("1.json", function(json) {
var plotarea = $("#placeholder");
var data=[json.data];
$.plot(plotarea , data);
});
});
</script>
<div id="placeholder" style="width:600px;height:300px;"></div>
</body>
</html>
json ( , , )
{
"label": "Europe (EU27)",
"data": [[1999, 1], [2000, 0.23], [2001, 3], [2002, 4], [2003, 1.3], [2004, 2.5], [2005, 2.0], [2006, 3.1], [2007, 2.9], [2008, 0.9]]
}
, .