# A Line chart with a gradient fill

This goes in the documents header:

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

Put this where you want the chart to show up:

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

This is the code that generates the chart:

    <script>
        window.onload = function ()
        {
            var points = 365 *2,
                data   = [],
                last   = 16,
                max    = 50;

            // Create the data
            for (var i=0; i<points; i+=1) {

                last = (RGraph.random(-1,1) + last);
                last = Math.min(last, max);
                last = Math.max(last, 0);

                data.push(last);
            }

            var l1 = new RGraph.Line({
                id: 'cvs',
                data: data,
                options: {
                    shadow: null,
                    filled: true,
                    fillstyle: 'Gradient(rgba(255,255,255,0.5):rgba(0,200,200,0.25))',
                    numxticks: 8,
                    labels: [
                        '','Q1 `10','',
                        '','\r\nQ2 `10','',
                        '','Q3 `10','',
                        '','\r\nQ4 `10','',
                        '','Q1 `11','',
                        '','\r\nQ2 `11','',
                        '','Q3 `11','',
                        '','\r\nQ4 `11',''
                    ],
                    backgroundGridVlines: false,
                    backgroundGridBorder: false,
                    colors: ['rgb(33,200,200)'],
                    gutterBottom: 50,
                    noxaxis: true,
                    noyaxis: true,
                    tickmarks: null,
                    textAccessible: true
                }
            }).draw();
        };
    </script>