[vtkusers] vtkAppendPolyData

[Alejandro Galindo Mateo]

Hello vtk users,

I have a lot of vtkPolyData so I put it in a vtkAppendPolyData, but when I 
try to set the input of a filter as vtkAppendPolyData I get an error because 
the filter acepts vtkPolyData but doesn´t acept vtkAppendPolyData.

How can I transform vtkAppendPolyData with all the vtkPolyData into a single 
vtkPolyData or something like this?

Thanks for all,