By using two lines - the second with a smaller linewidth
than the first,
but using the same values as the first - the second is
drawn on top of the first.
<script src="RGraph.common.core.js"></script> <script src="RGraph.common.dynamic.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> line = new RGraph.Line({ id: 'cvs', data: [ [4,5,3,8,null,9,6,5,3], [4,5,3,8,null,9,6,5,3] ], options: { xaxisLabels: ['Mal', 'Barry', 'Gary', 'Neil', 'Kim', 'Pete', 'Lou', 'Fred', 'Jobe'], colors: ['black', 'white'], linewidth: [5,2], marginInner: 5, shadowOffsetx: 0, shadowOffsety: 0, shadowBlur: 15, tickmarksStyle: null } }).draw(); </script>