A basic example of the drawing API rect 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.rect.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>
    var line = new RGraph.Line({
        id: 'cvs',
        data: [5,8,6,4,3,5,2],
        options: {
            hmargin: 5,
            labels: ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'],
            backgroundGridVlinesBorder: false,
            textAccessible: true
        }
    }).draw();
    
    var coords = line.coords[2];
    
    var rect = new RGraph.Drawing.Rect({
        id: 'cvs',
        x: coords[0] - 15,
        y: coords[1] - 15,
        width: 30,
        height: 30,
        options: {
            fillstyle: 'rgba(255,0,0,0.25)',
            strokestyle: '#000',
            tooltips: ['The tooltip for the rect object!']
        }
    }).draw();
</script>