• Triangulation
• Inverse distance (variable exponent & octant searching)
• Directional weighting
• Kriging (automatic variogram fitting)
• Closest-point
• Distance-to-point
• Multiple linear regression
• More detail about the algorithms...

• Create 1st through 6th order polynomial surfaces
• Create 1st through 6th order polynomial residual XYZ files
• Generate "goodness-of-fit" polynomial regression/residual reports

• Polynomial enhancement available:
  • The residuals from the trend fitting analysis are gridded, and added to the polynomial surface
  • The advantages are that regional trends are projected into areas that lack control points, while local regions remain accurate

• remove high and/or low Z values
• filter values inside/outside a polygon
• filter Z values based on those in another model
• convert the model to a Boolean (true/false) model for "what-if" simulations
• smoothing filters
• rounding filters
• resample based on user-defined extents and spacing

• area
• volume
• residuals
• automatic anomaly-finder

Compute slope and direction for any surface model, and create:

• gradient maps
• strike and dip maps
• 2D flow diagrams
• 3D flow diagrams