Here's a gray themed Pie chart. It uses the responsive function in order to allow for smaller screens, the labels are bold and the text is slightly smaller than usual.
In terms of
responsiveness, when the screen/browser is smaller the labels are changed to not have
the percentage appended to them, reduced in size and the labelsSticks
option is disabled.
Initially the labels are simple strings that consist of operating system names (like this:
['Symbian','Blackberry','Android','iOS','Windows','Others'])
But these labels then have the relevant percentage that is being represented appended to them
(for larger screens only).
The labels are bold too. The font that the labels are rendered in is set to
Lucida Grande - though if this font is not on your system you may see the labels
rendered using Arial instead.
The tooltips are created in the same way - just a little more verbosely. They're triggered
using the mouseover event. The tooltipsCss property is used to
set styles on the tooltips (ie the font-size text-align and
pointer-events properties). The pointer-events CSS property is turned
off so that you can move the mouse pointer around and still see the correct tooltip even if another
tooltip is in the way.
<script src="RGraph.common.core.js"></script> <script src="RGraph.common.dynamic.js"></script> <script src="RGraph.common.tooltips.js"></script> <script src="RGraph.pie.js"></script>Put this where you want the chart to show up:
<canvas id="cvs" width="550" height="300">
[No canvas support]
</canvas>
This is the code that generates the chart: