ContentsPie chartsWhy pie charts are different

Previous: Pie charts | Next: Apples to apples

PdfPieCharts are a different animal. Although pie charts are used in a manner similar to regular charts, they are built with a very simple object heirarchy. Unlike PdfChart and ValueSet, they don't need to implement the Renderable or ChartGraphics interfaces. Consequently, the extension mechanism is completely different.

Pie charts have no grids or independent data set scaling. They use different colors for each value instead of for each set of values. They have no axes to label.

With all of those disclaimers, let me assure you that they are - nevertheless - useful. code / output / compare with a regular chart of same values.

How it works:

• Line 21 to 27 - instance as many PieSlice objects as you need, constructing each with the appropriate label and value
• Line 28 - draw the pie (you can alter the data and draw additional pies as required)

ContentsPie chartsWhy pie charts are different

Previous: Pie charts | Next: Apples to apples