[vtk-developers] Proposed filter name and class hierarchy changes

[David E DeMarle]

Hello,

I am fleshing out support for selection in vtk and ParaViewIII. I am
adding new content types to the vtkSelections class in order to use it
to hold geometric and threshold selection information. As part of this
effort I would like to:

* move vtkSelection from being a subclass of vtkObject to vtkDataObject
* rename vtkFrustumExtraction to vtkExtractSelectedFrustum
* rename vtkPolyDataExtractSelection to vtkExtractSelectedPolyDataIds
* rename vtkExtractSelection to vtkExtractSelectedUnstructuredGridIds
* create new vtkExtractSelectedThreshold, vtkExtractSelectedPoints,
vtkExtractSelectedIds and vtkExtractSelection classes.

The end result will be a cleaner framework for performing, recording
and replaying various data selections in applications that use vtk.
One will be able to create a vtkSelection describing some desired
selection operation, give the vtkSelection and a vtkDataSet to to one
of the above algorithms, and execute Update to extract the chosen
contents of a data set.

I plan on committing sometime this week unless there are objections
from the  list.

cheers,
Dave DeMarle