This Bar chart draws the chart then uses the coordinates of the bars to create gradients (each is specific to a bar), changes the colors to the gradients and finally redraws the chart.
This goes in the documents header:<script src="RGraph.common.core.js"></script> <script src="RGraph.common.dynamic.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: