Created attachment 195454 [details] Screenshot of a pie chart with data labels and 100 slices When a pie chart has a high number of slices with a skewed distribution (e.g. 100 slices, but with 4-5 big slices covering most of the pie), our "strategy" for rendering outer data labels and their callouts - fails; see screenshot. At some point we should start either dropping the callouts, or grouping, or saying ... , or something.
UX team can innovate on the strategy.
Created attachment 196326 [details] Alternative plots Left is Excel, right R. While using an elaborated placement algorithm with nice connectors looks nifty, a simple overwrite is acceptable too. In most cases those pointless information are rather removed from the plot and we may consider this option too.
There is no example document attached...
Created attachment 197196 [details] Document with chart exhibiting the problem A document with a chart exhibiting the issue (not the exact same chart as in 195454, but the problem is the same).
Created attachment 197198 [details] Rendering with data label placement "outside" Agree that as shown, the rendering is ugly. The attachment uses the placement strategy "best fit". Changing the placement strategy to "outside" results in the rendering as shown in data_label_placement_outside.png, which is similar to what's in one of the other images, and seems to be considered preferable.