A basic example of the drawing API image object

This goes in the documents header:

<script src="RGraph.common.core.js"></script>
<script src="RGraph.common.dynamic.js"></script>
<script src="RGraph.common.tooltips.js"></script>
<script src="RGraph.drawing.image.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 line = new RGraph.Line({
            id: 'cvs',
            data: [5,4,8,4,3,5,2],
            options: {
                hmargin: 5,
                labels: ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'],
                backgroundGridVlines: false,
                backgroundGridBorder: false,
                tickmarks: 'circle',
                textAccessible: true
            }
        }).draw()
        
        var coords = line.coords[2];
        
        var img = new RGraph.Drawing.Image({
            id: 'cvs',
            x: coords[0],
            y: coords[1],
            src: '../images/logo.png',
            options: {
                halign: 'center',
                valign: 'center',
                alpha: 0.6,
                tooltips: ['The tooltip!']
            }
        }).draw();
    };
</script>