Nearest Neighbor

The Nearest Neighbor gridding method assigns the value of the nearest point to each grid node. In cases where the data are nearly on a grid with only a few missing values, this method is effective for filling in the holes in the data.

Sometimes with nearly complete grids of data, there are areas of missing data that you want to exclude. In this case, you can set the Search Ellipse to a value so the areas of no data are assigned the blanking value. By setting the search ellipse radii to values less than the distance between data values in your file, the blanking value is assigned at all grid nodes where data values do not exist.

Specifying Nearest Neighbor Options

In the Property Manager Gridding page, select Nearest Neighbor as the Gridding method and then click the Advanced Options button to display the Nearest Neighbor Options dialog.

You can set the search range and angle in the

Nearest Neighbor Options dialog.