The following is defined: a fill color, a stroke color (Outline color) and -width (Width), the size of the symbol (symbol size), plus which symbol (symbol).
Ellipse is defined as criteria for clustering (Region), and the distance between the objects/points is set to be a maximum of 40 px (Max distance).
A label for displaying the number of objects/points comprised by each cluster is also defined, by selecting an appearance (Label style) and specifying an expression for what is to be printed – in this example [Cluster:FeatureCount] is used.
Example, legend
Example, in map
