Exhibit/Hierarchical Facet

From SIMILE Widgets

To include a Hierarchical Facet, add to your HTML

 <div ex:role="facet"
   ex:facetClass="Exhibit.HierarchicalFacet"
   ex:expression=".subject"
   ex:uniformGrouping=".subtopicOf">
 </div>

This page requires further work.

An excellent example of hierarchical facet selection can be found at:

http://people.csail.mit.edu/dfhuynh/projects/hierarchical-facets/test.html

Examine the data for this example:

http://people.csail.mit.edu/dfhuynh/projects/hierarchical-facets/data.json