[Insight-developers] AutomaticTopologyMeshSource

[Mark Foskey]

I am writing a mesh source to make it easier to create meshes.  The 
idea is that you should be able to call

meshSource->AddTriangle( p0, p1, p2 );
meshSource->AddTriangle( p1, p2, p3 );

where p0, ..., p3 are already-defined points, and the meshSource will 
add the appropriate points, VertexCells, LineCells, and TriangleCells 
for a full K-complex, being sure not to add any object more than once.

I intend to have AddFoo methods for each of the currently supported 
CellTypes.

It seems that this may be useful in a number of places.  I want it to 
facilitate the implementation of medial surface extraction, but it can 
also be convenient when importing mesh data from an arbitrary format.

There will also be methods of the form AddTriangle( id1, id2, id3 ), 
where the id's are identifiers for points that have already been added.

I have looked around and it doesn't seem like ITK already has anything 
that does this, but I'd like to know if I'm duplicating any effort, or 
if there are any objections to the idea of such a class.

I plan to check in a partial version in the next couple of days for 
testing purposes; I have a running test program but you can only add 
points and vertex cells.

-- 
Mark Foskey    (919) 843-5436  Computer-Aided Diagnosis and Display Lab
mark_foskey@unc.edu            Department of Radiology, CB 7515, UNC
http://www.cs.unc.edu/~foskey  Chapel Hill, NC  27599-7515