[vtkusers] Re: Fill contours with Pixels

[Mike Jackson]

I tried that code already and it didn't seem to like what I threw at  
it.. Maybe I am using it wrong?


-- 
Mike Jackson   Senior Research Engineer
Innovative Management & Technology Services


On Feb 13, 2007, at 4:49 PM, Goodwin Lawlor wrote:

> Mike Jackson wrote:
>> I have a 3D triangle mesh that I am trying to close the "Holes"  
>> on. This mesh is pretty complex and although I have searched the  
>> archives I have not found anything that has worked out. The main  
>> problem being that a "contour" line can traverse 2 or more planes.
>>    So what I was thinking was to extract the contour loops just at  
>> the boundary surface. This gives nice loops. Now if I could  
>> somehow "fill" those loops with solid pixels, convert the whole  
>> thing to a voxel volume, I believe I have a way to "extract  
>> surface" of the new voxel volume, triangulate it, than append and  
>> merge to the original mesh. I have used this type of technique  
>> before with good success. I just need to fill the interiors of  
>> loops with a solid color.
>>   Are there any filters that might do this? Anything in ITK? I'll  
>> ask on that list next.
>> Thanks
>> --Mike Jackson   Senior Research Engineer
>> Innovative Management & Technology Services
>
> Hi Mike,
>
> There is a very simple class that encapsulates a pipeline that  
> triangulates boundary loops here: http://www.bioengineering- 
> research.com/vtk/vtkTesselateBoundaryLoops.htm
>
> Just FYI, the Standord Computer Graphics Lab has much more  
> sophisticated stuff here:
> http://graphics.stanford.edu/software/volfill/
>
> hth
>
> Goodwin