[vtkusers] vtkSpatialRepresentationFilter.SetInput problem

[Surajit Nundy]

Hello,
	I have a strange problem using the 
vtkSpatialRepresentationFilter.SetInput method.  When I pass it a 
vtkPolyData object in Java (with say vtkConeSource.GetOutput), it works 
fine.  However, when i use it in C++, it complains saying it needs a 
vtkDataSet object (which seems to be verified in the documentation).  I 
can't seem to figure out how to convert a vtkConeSource output (or any 
other kind of such object) into vtkDataSet form, is there such a filter?

Thanks,
Surajit Nundy