[vtkusers] Merging UnstructuredGrids with different tolerance

[Eric Buchwald]

Hi!

I want to append 2 unstructured grids that fit in together as two pieces 
of puzzle. The vtkAppendFilter works well, but at the planes where the 
to grids are connecting to each other some points (that should be the 
same point) are a little of. So I want to "clean" the created grid.

The problem is, that the created grid consists out of cells with very 
different size. Having this the offset of those points is larger than 
the size of some normal cells. So I need a cleaning/pointmerging 
function that merges those point in respect to the corresponding cell.

Is there a merging function with cell dependant tolerances? I didn't 
find anything. Since I'm new to VTK I hope that I just can't find it^^.

Thanks for the help!

Eric