Pie Charts and Donut Charts with jqPlot
Pie charts and donut charts are an excellent way to show the breakdown of data into their constituent parts. A pie chart is a circular chart divided into sectors, or “slices,” and its main purpose is to illustrate their relative proportions: the arc length of each slice is proportional to the quantity it represents. A donut chart is very similar to a pie chart but has a hole in the center and supports the comparison of multiple series. In this chapter, you will look at both kinds of charts. The chapter concludes with a discussion of multidimentionsional pie charts.