A Gauge chart using the Google Sheets connector

[No canvas support]

This goes in the documents header: 
<script src="../libraries/RGraph.common.core.js" ></script>
<script src="../libraries/RGraph.common.sheets.js" ></script>
<script src="../libraries/RGraph.gauge.js" ></script>
Put this where you want the chart to show up: 
<canvas id="cvs" width="300" height="300">
    [No canvas support]
</canvas>
This is the code that generates the chart: 
<script>
    new RGraph.Sheets('1ncvARBgXaDjzuca9i7Jyep6JTv9kms-bbIzyAxbaT0E', 4, function (sheet)
    {        
        var value = sheet.get('C3');

        var gauge = new RGraph.Gauge({
            id: 'cvs',
            min: 0,
            max: 100,
            value: value,
            options: {
                textAccessible: true
            }
        }).grow();
    });
</script>