Can anyone point me to a clear document or algorithm for extracting smooth isolines from a Triangular Irregular Network? I've seen some examples using the jagged linear methods, but can't seem to find good documentation on how to do the process using a smoother method like Natural Neighbor / Radial Basis / Quadric / etc…
Thanks!
Best Answer
Digital elevation models and TIN algorithms (M. van Kreveld), section 1.6 may help.