Connectivity: Finding / setting adjacent points in a curve?

[Mathew Koshy]

Audrius,

I had a similar problem.  In my case, as in perhaps your case, the curve
was obtained
from vtkMarchingSquares or vtkContourFilter.  
>From a graph theory point of view, vtkCellArray in this
case simply provides an (unordered) list of (undirected) edges in a
graph.  One simply 
needs to extract all "paths" in such a graph.  Actually, there is a
little more 
structure to the graph -- each node has maximum degree of 2.  

Hope this helps.

Mathew Koshy
ARACOR


Audrius Stundzia wrote:
> 
> Dear vtker's
> 
> Is there a way to do the following in vtk?
> 
> I have a list of points that forms a curve. However, geometrically adjacent
> points are scattered throughout the list. If I read the list
> sequentially and insert the points into vtkCellArray to form
> a polyline, I have the polyline jumping all over the place,
> as opposed to simply connecting adjacent points.
> 
> Is there a way of remedying this problem using vtk?
> 
> Any help / insight would be appreciated.
> 
> Btw, is there a searchable archive for the vtk newsgoup?
> 
> Regards,
> 
> Audrius
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