Select direction of maximum continuity

Overview

You can use this function to graphically set the direction of maximum continuity of a variogram map.

Procedure

Choose Variogram map > Select direction of maximum continuity or click the icon in the Variogram map window.

You will see the prompt: "Rotate the red line to the direction of maximum continuity." in the message window at the bottom of the screen.

Rotate the red line in the Variogram map window to indicate the direction of maximum continuity in the variogram map.

You will see the

Enter Direction of Maximum Continuity form.

Form Feature	Description
Angle	The angle in DDD.MMSS of the direction of maximum continuity is determined by rotating the red line. You can also enter an angle directly. Note: This angle is clockwise from zero being vertically up the screen on the current display of the variogram map. This is not directly related to any angle in real world space. For example, 90 = right, 180 = down, 270 = left. Valid values are from 0 to 359.5959.

The direction of maximum continuity in the Primary variogram map defines the major axis of the anisotropy ellipsoid and determines the orientation of the Secondary variogram map.

The direction of maximum continuity in the Secondary variogram map defines the semi-major axis (and implies the minor axis) of the anisotropy ellipsoid.

Messages:

You need to create a variogram map to use this function.

You need to have created a variogram map prior to invoking this function.