[vtkusers] Attribute Triangle in vtkPolyData class

[Nicolas Cathaud]

Hello,

I have a question about the vtkPolyData class. There's an attribute of this
class which is composed by Triangles, but it don't seem to be used because
there's no set and get function. I just want to know if this attribute is
not useful because it can be replace by the "Polys" attribute which is a
vtkCellArray, or if in the case where you have only triangles it could be an
advantage compared to the "Polys" attribute.

Thank you for answers.

Cordialement.
Regards.

Nicolas CATHAUD