Flex gridding parameters

Flex gridding offers the ability to stretch a surface across a sparse dataset with a choice of preserving the curvature of the surface (minimum smoothness) versus emphasizing local control point values (minimum tension). Since the emphases of curvature and local control points are opposite in intent, flex gridding allows the user to choose a weighted combination of these features.

Input parameters

Input Table	The application should detect the X and Y columns based on the column headers, but you can change the automatic selection if necessary. The only selection you should have to make is Attribute. Select the attribute that you want to grid from the list of available columns in the table.
Tension (0-1)	Minimum tension connects the data with a surface of the smallest possible area; a good analogy would be a rubber sheet stretched over the data. This will be smooth between the data, but will have a slope discontinuity (cusp) at each datum. Maximum tension tries to make a smooth surface through the data, analogous to a spline, and creates smooth contours.
Smoothness (1-11)	The default smoothing level is 6, at the midpoint. The easiest way to see the difference is simple to create grids at 1 and 11 and view the results.

Output parameters

The only editable output options for the resulting grid are Cell size X and Cell size Y. The gridding algorithm selects the optimal cell size for you, but you can manually enter a different value if you want. Note that the flex gridding algorithm has been in use, tried, and tested in Kingdom for many years, and the suggested cell size values usually yield the best results.