<< Click to Display Table of Contents >> Navigation:  Chapter 10 Gridding and Contouring > Contour Maps > Editing a Contour Map > Grids > Gridding Data > Inverse Distance Tab

If the grid method is inverse distance an Inverse Distance tab will be added to the Grid form.

 

 

The following can be edited on this tab:

 

Weighting Power: This is the power to use to weight the inverse distance.

 

Tolerance: This is the distance in grid intervals that the data point must be to the grid node to be considered to be coincident with the grid node.

 

Smoothing: Check this box to smooth the grid to remove "bull's eyes".

 

Smoothing Factor: This is the smoothing factor to use to smooth the grid.

 

Maximum Number of Points: This is the maximum number of points to use when calculating the grid node value.

 

Maximum Distance of Influence: This is the maximum distance a data point can be from the grid node in grid intervals.

 

Quadrant Search: Check this box to try to use a minimum of one data point in each quadrant of the grid node.

 

Anisotropy: Check this box to specify horizontal and vertical anisotropy factors for the grid.

 

Estimate: Click this button to have the program estimate the anisotropy factors.

 

X Factor: This is the horizontal anisotropy factor.

 

Y Factor: This is the vertical anisotropy factor.