[vtkusers] image to polydata

[Sylvain Jaume]

Dear all,

How to convert a 3D image to a polydata to visualize the 3D grid ?

vtkImageDataGeometryFilter does a good job at converting a 2D image to a
grid (points + connectivity). But when it comes to 3D, it outputs vertices
without any connectivity. Is there another filter that will output the
points, and a 'box' (a list of 8 point indices) to represent every voxel ?
What about adding a functionality OutputConnectivityOn/Off to
vtkImageDataGeometryFilter ?

Thanks.
Sylvain