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Neighboring triangles of each vertex

  1. Nov 9, 2012 #1
    I have a mesh with unstructured triangular grid.
    I need to find neighboring triangles of each vertex. How can I do it?
    Thanks before :D
  2. jcsd
  3. Nov 15, 2012 #2


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    Science Advisor

    Hey ria91.

    What exactly is the data structure like? If its just a list of triangles then do a double loop (runtime O(n^2)) where you fix one triangle and get all the other triangles that have at least one similar vertex.
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