Rotation

The stand alone Rotation component can be inserted under any assay or domain in the Project Tree, or under a Data Loader Component. For the Rotation component that is inserted with standard Continuity Models, see Configure Variogram Rotation Properties.

The Rotation component replaces the need for the Variogram Fan components if the Euler or Tait-Bryan angles are already known for the desired orientation. Tait-Bryan angles may also referred to as 'Cardinal Angles', 'Nautical Angles', 'Heading, Elevation and Bank' or 'Yaw, Pitch and Roll'. Both kinds of sequences are sometimes also called Euler angles, so ensure you know which you are working with. Each type of angles are denoted by the following rotation conventions.

Euler angles – ZXZ, XYX, YZY, ZYZ, XZX, YXY.

Tait-Bryan angles – XYZ, YZX, ZXY, XZY, ZYX, YXZ.

Note: It is also recommended that you know the original orientation for Direction 1, which can be either in the X or Y direction, depending on your data.

Several pre-sets are available in Supervisor that have pre-defined conventions used in various software packages. When using these pre-set conventions, there is less requirement for you to understand the intricacies of the angles. However, care should be taken to ensure the angles are transcribed into the correct sequence, particularly if there is a discrepancy in terminology used.

When the angles have been entered into the rotation boxes and the component has been processed, Supervisor calculates the appropriate fan rotation angles to generate Variogram Models in the correct orientation. The Continuity Models component is automatically added and can be used in the same way as if it was generated under an equivalent set of fan rotations. See Continuity Models.

The calculated rotations display in the Main Canvas and pre-filled into subsequent components. Open the 3D View Window to see the 3D visualisation of the current rotation orientation.