Why do I get error message “could not find opposite point in triangulate” while generating tetra mesh?
During mesh generation, Tetra tries to capture all the features of the geometry (curves ,points..). The edges of triangular elements are set along the curves. The nodes of triangular elements are assigned to points. The size of these triangular elements are decided from the sizes set on surfaces and curves. If in the geometry any two points or curves are closer to each other compared with the sizes set on the surfaces and curves, tetra cannot capture both the details due to size restrictions, so it captures one of those details and displays warning message “could not find opposite point in triangulate” for the detail which is not captured.
