Hi everyone,
i use Geopak for my DTM construction and have found that the best way of achieving a 'smooth' DTM is by creating a LATTICE as opposed to a TIN. This is the same as creating a grid as mentioned by MichaelGilham.
Its the best way of removing 'sharps' that are created by the contour data used, without having to smooth out the contour linestrings.
