All, I am looking to calculate a mesh quality measure that would be the ratio of the max/min of the element volumes of each element and all it's neighbors (other elements with common nodes). I intend to use this to quantify grid refinement transitions and perhaps establish some design standards for them. I have tried Gradient of Element Volume, but I need to eliminate the distance part of that to get the number that I want. So, if I have a hex element in a regular grid, I would expect to have 26 "neighbor" elements plus the original element. The number I want is (max of 27 element volumes)/(min of 27 element volumes). This quantity will highlight mesh refinement transitions.
My question (at last) is: how do I find all the neighbor elements (share at least 1 node) of each element in my model? I'd like to do this in a Programmable Filter. I'm afraid I don't know much about how connectivity is implemented in vtk. Dennis
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