# An example of a Bar chart with bars-in-bars

By using two bar chart objects you can achieve a bar-in-bar effect. Here it shows the total amount of cars produced versus those sold. It's similar to a stacked or grouped Bar chart.

There's an SVG version of this chart here.

This goes in the documents header:

    <script src="RGraph.common.core.js"></script>
    <script src="RGraph.bar.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 data = {}
                data.shipped = [88000,88000,105000,105000,116000,116000,126000];
                data.sold    = [30000,54000,54000,62000,63000,68000,68000];

            var bar1 = new RGraph.Bar({
                id: 'cvs',
                data: data.shipped,
                options: {
                    gutterTop: 40,
                    gutterLeft: 70,
                    colors: ['rgba(0,0,255,0.2)'],
                    labels: ['Fred','Barney','Wilma','Betty','Dino','Bam-bam','Pebble'],
                    labelsAbove: data.shipped,
                    title: 'Total cars produced vs sold',
                    strokestyle: 'rgba(0,0,0,0)',
                    scaleZerostart: true,
                    textAccessible: true,
                    shadow: true
                }
            }).draw();

            var bar2 = new RGraph.Bar({
                id: 'cvs',
                data: data.sold,
                options: {
                    ymax: bar1.scale2.max,
                    gutterTop: 40,
                    gutterLeft: bar1.Get('gutterLeft'),
                    colors: ['pink'],
                    noaxes: true,
                    labelsAbove: true,
                    hmargin: 20,
                    ylabels: false,
                    backgroundGrid: false,
                    strokestyle: 'rgba(0,0,0,0)',
                    textAccessible: true,
                    shadow: true
                }
            }).draw();
        };
    </script>