Smart Scaling relies on a display hierarchy or a draw order when it determines what is displayed. The display hierarchy is based on the number of components and the initial size of the chart boundary. The display hierarchy for the Chart sections is as follows.
Bar, Line and Area charts have this display order:
Pie charts have this display order:
The display order of Scatter and Bubble Charts are:
As you add or modify various Chart label components, Smart Scaling uses the hierarchy to determine which components to add or omit when placing items.
For example, in a Pie Chart where several small slices are in the same vicinity of each other, some of the pie slice labels might typically overlap due to simple space allocations. If you have Smart Scaling enabled, some of the slice labels are simply not drawn when crowded conditions are encountered. If a current label overlaps a label, then the label is skipped and the next label is drawn. You can correct this by moving the label slice. If there is enough room for other labels to display unobstructed when the label slices are repositioned, additional labels are displayed. You can also enable the “Line to Label” feature to enhance the slice-label relationship, and identify and place items easier.