The Vizlib Venn Diagram supports and requires two dimensions which represent on the one hand attributes, and on the other hand elements. Combined together, attributes and elements provide a set of groupings, intersections and visual representation of relationships.
Attribute (First Dimension): Is an attribute of elements, like for example hair color, sex, height or age of a student population.
Elements (Second Dimension): Should represent the number of elements which have one or more attributes assigned to them.
The Vizlib Venn Diagram supports one metric which represents the size of the element population.
The Vizlib Venn Diagram supports showing & hiding zero values and using calculation condition to control when the chart is displayed or not.