TNT Surface Modeling Highlights:

• Construct a DEM from contour lines, a TIN, point data, or database records containing 3D coordinates

• Assign elevations for the DEM by query from any numeric database field associated with the input data

• Efficiently process datasets with thousands of points or contour lines to produce large, detailed DEMs 

• Choose from many interpolation methods for surface fitting such as Minimum Curvature, Inverse Distance, Profiles, and Polynomial

• Use geostatistics to fit a surface to your point data via the Kriging method

• Choose the cell size and numeric type for the DEM 

• Create contour lines from a DEM or TIN using Linear or Iterative Thresholding methods

• Fast, efficient contouring of even very large DEMs

• Produce smoother contour lines using optional smoothing and resampling of the DEM

• Create a TIN from a DEM, contour lines, or point data

• Use breaklines to create “hard” TIN edges that are preserved in the event of further changes in the TIN structure

• Use polygon breaklines to limit the extents of the TIN

• Use optimization settings to constrain the density and detail of the TIN

• Bidirectional surface fitting specially tailored for geophysical data acquired along parallel transect lines