[vtkusers] point connectivity

Leila Baghdadi baghdadi at sickkids.ca
Wed Feb 26 15:04:18 EST 2003


try checking

 vtkCellLinks()


hope this helps


Leila 

On Wed, 26 Feb 2003, Theodore Papatheodorou wrote:

> Hi all,
> I have a polydata structure and I want to identify different bloods with
> different colours. Does anyone know of a way to identify which pieces
> are not connected to each other and give them a different id? Is there
> for example a function that checks to see if two points belong to the
> same object?
> 
> Example in 2D:
> 
> AAA            BBBBBBBBB
> AAA            BBBBBBBBB
> AAA            BBBBBBBBB
> AAA            BBBBBBBBB
> AAA            BBBBBBBBB
> 
> I want object A to be identified as separate from object B since they
> are not connected at any point. In 2D it is easy because one has to loop
> through the pixels. In 3D it gets a bit tricky.
> Any suggestions mostly welcome.
> Thanks for your answer and time.
> 
> Theodore
> 
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