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>