Count Circle

In the Contour Options dialog, you can customize the Count Circle size used in the contour calculations.

The generally accepted size for the counting circle used in contour calculations is one percent of the surface area of the lower reference hemisphere. This is, however, merely convention and if desired, you may use a different size of counting circle. The allowed range of counting circle area as a percentage of hemisphere area is 0.5 % to 5.0 %. For meaningful results, a range limit of 1.0 % to 2.5 % is recommended.