A Rose chart using the CSV reader

This chart demonstrates using the CSV reader to read the sample.csv file.

Note: For browser security reasons the AJAX demos don't work offline. You can view the demos on the RGraph website here: https://www.rgraph.net/demos/index.html

This goes in the documents header:

<script src="RGraph.common.core.js"></script>
<script src="RGraph.common.csv.js"></script>
<script src="RGraph.rose.js"></script>

Put this where you want the chart to show up:

<canvas id="cvs" width="400" height="400">
    [No canvas support]
</canvas>

This is the code that generates the chart:

<script>
    window.onload = function ()
    {
        RGraph.CSV('/sample.csv', function (csv)
        {
            var data = [];

            /**
            * First column is the labels
            */
            var labels = csv.getCol(0);

            /**
            * Number of rows in the CSV file
            */
            var numrows = csv.numrows;
            
            for (var i=0; i<numrows; i+=1) {
                data.push(csv.getRow(i, 1));
            }
            
            var bar = new RGraph.Rose({
                id: 'cvs',
                data: data,
                options: {
                    labelsAxes: 'n',
                    margin: 15,
                    colors: ['red', 'green', '#aaf', 'mauve', 'cyan','#fca', 'pink'],
                    colorsAlpha: 0.5,
                    backgroundAxes: false,
                    backgroundGridRadials: 0
                }
            }).draw();
        });
    };
</script>