/home/mip/public_html/template/AdminLTE/plugins/RGraph/demos/basic-ajax-json.html
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    <title>A basic example of JSON/AJAX</title>

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    <meta name="description" content=" A basic example of a chart created using JSON/AJAX. It shows a simple example and there is little happening on the page so the source is easy to navigate." />
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    <!-- Include the RGraph libraries -->
    <script src="../libraries/RGraph.common.core.js" ></script>
    <script src="../libraries/RGraph.line.js" ></script>

</head>

<body>

    <h1>A basic example of AJAX and JSON data</h1>
    
    <p>
        This is a basic example of using JSON and AJAX. AJAX is used to request the data and it is returned in JSON format. The JSON
        data is then evaluated and a chart created using it.
    </p>

    <canvas id="cvs" width="600" height="250">[No canvas support]</canvas>

    <script>
        /**
        * Ths window.onload function initiates the AJAX request. The AJAX page is: http://www.rgraph.net/getdata.html?json
        * If you view this in your browser you'll see that all it does is output a JSON object (a JavaScript object).
        */
        window.onload = function ()
        {
            RGraph.AJAX.getJSON('/getdata.html?json', drawGraph);
        };



        /**
        * This is the AJAX callback function. It splits up the response, converts it to numbers and then creates the chart.
        */
        function drawGraph (json)
        {
            // Set the JSON on the window object so that the button below can show it to the user.
            window.__json__ = json;



            // Now draw the chart
            var line = new RGraph.Line({
                id: 'cvs',
                data: json.data,
                options: {
                    textAccessible: true,
                    hmargin: 10,
                    linewidth: 2,
                    ymax: 100,
                    labels: json.labels,
                    gutterLeft: 35
                }
            }).draw();
        }
    </script>

    <br />

    <button onclick="$p(window.__json__)">Show the JSON output</button>







    <p></p>

    This goes in the documents header:
    <pre class="code">
&lt;script src="RGraph.common.core.js"&gt;&lt;/script&gt;
&lt;script src="RGraph.line.js"&gt;&lt;/script&gt;
</pre>
    
    Put this where you want the chart to show up:
    <pre class="code">
&lt;canvas id="cvs" width="600" height="250"&gt;
    [No canvas support]
&lt;/canvas&gt;
</pre>

    This is the code that generates the chart:
    <pre class="code">
&lt;script&gt;
    <span>/**
    * Ths window.onload function initiates the AJAX request. The AJAX page is: http://www.rgraph.net/getdata.html?json
    * If you view this in your browser you'll see that all it does is output a JSON object (a JavaScript object).
    */</span>
    window.onload = function ()
    {
        RGraph.AJAX.getJSON('/getdata.html?json', drawGraph);
    };



    <span>/**
    * This is the AJAX callback function. It splits up the response, converts it to numbers and then creates the chart.
    */</span>
    function drawGraph (json)
    {
        <span>// Set the JSON on the window object so that the button below can show it to the user.</span>
        window.__json__ = json;



        <span>// Now draw the chart</span>
        var line = new RGraph.Line({
            id: 'cvs',
            data: json.data,
            options: {
                textAccessible: true,
                hmargin: 10,
                linewidth: 2,
                ymax: 100,
                labels: json.labels,
                gutterLeft: 35
            }
        }).draw();
    }
&lt;/script&gt;
</pre>


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