# A Line chart with a custom line

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="800" height="250">
        [No canvas support]
    </canvas>

This is the code that generates the chart:

    <script>
        window.onload = function ()
        {
            var color = '#E9B34E';

            var line = new RGraph.Line({
                id: 'cvs',
                data: [
                    [7000,26000,11000,16000,28000,13000,23000,28500,null,null,null,null],
                    [null,null,null,null,null,null,null,28500,11000,14000,9000,10000],
                ],

                options: {
                    colors: ['black',color],
                    shadow: false,
                    noaxes: true,
                    backgroundGridVlines: false,
                    backgroundGridAutofitNumhlines: 3,
                    backgroundGridBorder: false,
                    numyticks: 3,
                    ylabelsCount: 3,
                    ymax: 30000,
                    gutterTop: 50,
                    gutterLeft: 100,
                    unitsPre: '£',
                    linewidth: 3,
                    labels: ['JAN','FEB','MAR','APR','MAY','JUN','JUL','AUG','SEP','OCT','NOV','DEC'],
                    tickmarks: 'dot',
                    tickmarksDotStroke: 'white',
                    tickmarksDotLinewidth: 0,
                    tickmarksDotStroke: 'white',
                    ticksize: 0,
                    textSize: 14,
                    textFont: 'Segoe UI',
                    scaleZerostart: true,
                    shadow: true,
                    shadowOffsetx: 0,
                    shadowOffsety: 0,
                    shadowBlur: 0,
                    textAccessible: true
                }
            }).on('draw', function (obj)
            {
                // Draw the vertical line
                var x = obj.coords2[1][7][0];
                var y = obj.coords2[1][7][1];

                // Draw thevertical line above/below the 8th point
                RGraph.path2(obj.context, ['b','m',x,25,'l',x,y - 10,'s',color]);
                RGraph.path2(obj.context, ['b','m',x,y + 10,'l',x,230,'s',color]);

                obj.context.fillStyle = color;

                // Draw the text above the line
                RGraph.text2(obj, {
                    'x': x,
                    'y': 25,
                    'text': 'TODAY',
                    'size': 8,
                    'halign': 'center',
                    'bold': true,
                    accessible: true
                });

                // Draw the text above the line
                RGraph.text2(obj, {
                    color: 'black',
                    'x': 65,
                    'y': 30,
                    'text': 'REVENUE',
                    'size': 14,
                    'halign': 'center',
                    'bold': true,
                    accessible: true
                });

            }).trace2({frames: 50}, function (obj)
            {
                obj.animate({
                    frames: 15,
                    ticksize: 7,
                    tickmarksDotLinewidth: 3,
                    shadowOffsetx: 1,
                    shadowOffsety: 1,
                    shadowBlur: 2
                });
            });
        };
    </script>