Clean 3D Diagram Icons. A pie chart is a circular chart that shows how data sets relate to one another. For example, what happens if we were working on a project like Death from Above, where the interactive nature of the graphs greatly helps us understand the data? Original file ‎(SVG file, nominally 703 × 321 pixels, file size: 13 KB). Coyier and a team of swell people. The graphic was created by User:Schutz for Wikipedia on 27 December 2006, using the R statistical project. Set label's wrap (if we want a label to wrap to next line) or truncate (if we want label truncated). (We could get similar benefits with or