[vtkusers] eliminate duplicate nodes

burlen burlen at apollo.sr.unh.edu
Thu Dec 6 10:27:44 EST 2007

Does the vtkCleanPolyData class do what you want??

Although I supose you could do it, I am not convinced that VTK would be 
ideal for CFD project, you might find these links of use:


On the other hand at least visualization would be easy.

Oliver Gloth wrote:
> Dear VTK Users,
> I am currently working on an open-source project - developing a mesh
> generator for CFD simulations. Due to budget and time constraints I have
> chosen to use the VTK data structures as a basis, instead of writing my own
> data structures. Furthermore this makes building a GUI (based on Qt) to
> modify and visualise the mesh easy. One thing that is required is a filter
> to merge two grids and eliminate duplicate nodes. Is such a thing already
> part of VTK, or does somebody have a piece of code that would do this? The
> implementation is not trivial, because the 3D search can be very time
> consuming. If it doesn't exist yet I will implement it myself, but I would
> like to avoid double work as much as possible.
> Oliver

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