[vtkusers] vtkPolyData, ImplicitFunction, converstion

[tkbprak3]

Hi vtkusers!

I am drawing an object with vtkPoints and vtkCellArray. Then I want to intersect this object with a box (function SetOperationTypeToUnion, class vtkImplicitBoolean) and I become an error, that the conversion of vtkPolyData to the type vtkImplicitFunction isn't posible:

vtkBox box
...
vtkPoints points
...
vtkCellArray polys
...
vtkPolyData rect
    rect SetPoints points
    rect SetLines polys

vtkImplicitFunction
    impl AddFunction box
    impl AddFunction rect  (??? wrong type)
impl SetOperationTypeToIntersection

Hope, you can help me!

With best regards,

Corina Farcas
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