[vtkusers] Intersecting a line with vtkImageData/vtkStructuredGrid cells

[David Doria]

I have a finite line and I want to know all of the cells in either a
vtkImageData or a vtkStructuredGrid that the line passes through.

What I'm looking for is exactly

 vtkCellLocator::IntersectWithLine ( double [3], double [3], vtkPoints *,
vtkIdList * cellIds)

but when I try it I get an error:

"The locator class - vtkCellLocator does not yet support this
IntersectWithLine interface"

Does anyone know if there is a VTK-way (other than doing a line-box
intersection test on every cell) to determine which cells are intersected?

Thanks,

David
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