Bar charts with background horizontal bars
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 charts to show up:
<canvas id="cvs" width="600" height="250">[No canvas support]</canvas><br />
<canvas id="cvs2" width="600" height="250">[No canvas support]</canvas>
This is the code that generates the chart:
<script>
new RGraph.Bar({
id: 'cvs',
data: [[21,31],[13, -5],[-12, -58],[5, 29],[59, 28],[40, 10]],
options: {
colors: ['blue', 'red'],
xaxisPosition: 'center',
xaxisLabels: ['2007', '2008', '2009', '2010', '2011', '2012'],
backgroundHbars: [
[-55,-5,'rgba(255,0,0,0.2)'],
[-45,-10,'rgba(255,255,0,0.2)'],
[-45,90,'rgba(0,255,0,0.2)'],
[45,10,'rgba(255,255,0,0.2)'],
[55,null,'rgba(255,0,0,0.2)']
],
colorsStroke: 'rgba(0,0,0,0)'
}
}).draw();
new RGraph.Bar({
id: 'cvs2',
data: [[21,31],[13, 5],[12, 19],[5, 29],[59, 28],[40, 10]],
options: {
colors: ['blue', 'red'],
xaxisLabels: ['2007', '2008', '2009', '2010', '2011', '2012'],
backgroundHbars: [
[-55,-5,'rgba(255,0,0,0.2)'],
[-45,-10,'rgba(255,255,0,0.2)'],
[-45,90,'rgba(0,255,0,0.2)'],
[45,10,'rgba(255,255,0,0.2)'],
[55,null,'rgba(255,0,0,0.2)']
],
colorsStroke: 'rgba(0,0,0,0)'
}
}).draw();
</script>