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POfrom Google Visualization Datatable to Highcharts data format
 

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  1. POfrom Google Visualization Datatable to Highcharts data format
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    <p>I have a program that get sensors data from a Como database and put in a html page a graph. Now the graph is implemented with Google Graph API, but i have to switch to Highcharts.</p> <p>I have a function that converts json data in Google format</p> <pre><code> function json2gdt(data) { // Build a google.DataTable var gdt = new google.visualization.DataTable(); gdt.addColumn('datetime', 'Time'); gdt.addColumn('number', 'value'); gdt.addRows(data.length*2); var prev = data[0][1]; for (var i=0; i&lt;data.length; i++) { ts = data[i][0] * 1000 gdt.setValue(i*2, 0, new Date(ts)); gdt.setValue(i*2, 1, prev); gdt.setValue(i*2+1, 0, new Date(ts)); gdt.setValue(i*2+1, 1, data[i][1]); prev = data[i][1]; } return gdt; } </code></pre> <p>Then I have a function that visualize in the html page the graph:</p> <pre><code>function visualize(json_response) { var err = json_response['error']; if (err) { $("#chart_div").html("&lt;div class='alert'&gt;" + err + "&lt;/div&gt;"); return; } var data = json_response['data']; if (data.length == 0) { $("#chart_div").html("&lt;div class='info'&gt;No data received from this sensor!&lt;/div&gt;"); return; } // Convert Data to a step function //var step_data = json2step(data); var gdt = json2gdt(data); var start; if (data &amp;&amp; data.length != 0) // TODO: fix this to actually compute the half of the time period start = new Date(data[Math.floor(data.length / 2)][0] * 1000); // draw our data in the widget if (chart == null) { chart = new google.visualization.AnnotatedTimeLine(document.getElementById('chart_div')); } // TODO: compute tickness as a function of the time interval chart.draw(gdt, {displayAnnotations: false, displayZoomButtons: true, thickness: 2, fill: 10, {% if net.ntype == "ztc" and sens.type == 2 %} colors: ['#F00000'], scaleType: 'fixed', min: 0, max: 1, {% else %} scaleType: 'maximized', {% end %} allowRedraw: true, displayExactValues: true, zoomStartTime: start}); </code></pre> <p>}</p> <p>Finally this is a bit of json data file..</p> <pre><code>#master: sender-64bit-addr receiver-timestamp *;OPCODE;sender-timestamp;sender-seq-num;payload-length;payload# #master: input file (re)opened at 4f708e9d #master: child [pid=6884] started at 4f708eb1 0000000000000000 4f708eb2 *ZTCR;00000004;00000002;16;9755080000010000000000# 0000000000000000 4f708eb2 *ZTCR;00000004;00000003;10;9634050010000003# 0000000000000000 4f708eb2 *ZTCR;00000005;00000004;0A;97410200EA# 0000000000000000 4f708eb3 *ZTCR;00000005;00000005;10;9634050010000003# </code></pre> <p>Can anyone help me? i have to change the data format for highcharts or it's the same for google graph?</p>
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    1. USsharkbait
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      1. POfrom Google Visualization Datatable to Highcharts data format
      1. USFelix Kling
 

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