Connectivity (PVConnectivityFilter)
Mark connected components with integer point attribute array.
The Connectivity filter assigns a region id to connected components of the input data set. (The region id is assigned as a point scalar value.) This filter takes any data set type as input and produces unstructured grid output.

PropertyDescriptionDefault Value(s)Restrictions
Input
(Input)
This property specifies the input to the Connectivity filter.  

The selected object must be the result of the following: sources (includes readers), filters.

The selected dataset must be one of the following types (or a subclass of one of them): vtkDataSet.