[vtkusers] vtkVoxelModeller / converting "bit" scalar type?

[Paul Melis]

Hello,
Is there any way to actually use the output of the vtkVoxelModeller? Its 
output has scalar type "bit", but there seems to be no way to use this 
as I haven't found a filter that can handle the type (not even 
vtkImageCast or vtkImageShiftScale). The TCL test included in the docs 
for vtkVoxelModeller seems to suggest that writing the filter's output 
to a .vtk file and then reading it back in is a work-around, but even 
that doesn't work, as the result after reading is still "bit". Is the 
only way really to _hand-edit_ the output file so as to change the 
scalar type?

If so, is there a filter that can do similar things? In my case convert 
outlines (vtkPolyData consisting of lines) to a bi-level structured 
points set denoting inside/outside. I looked at vtkImplicitModeller, but 
it can't get it to fill the inside of the outlines, while 
vtkVoxelModeller does this by itself.

Thanks for any help,
Paul