ThreePoint.xlsm: Calculates the strike and dip of a structural
plane that contains 3 points of known location and elevation. Also
calculates the hydraulic gradient if the 3 points are water table
elevations. (macro-enabled 2010 Excel)
Rotation.xlsm: Calculates the new orientation of a line
given a starting orientation, a rotational axis orientation, and the amount
and sense of rotation. The algorithm may also be used to find the rotated
orientation of a structural plane if the orientation of the pole to the
plane is used as the starting orientation. (macro-enabled 2010 Excel)
SCslip.xlsm: Calculates the orientation of the slip
vector given the attitude of the S and C planes measured from an S/C
mylonite zone. (macro-enabled 2010 Excel)
SphericalRotation.xlsm: Calculates the new geodetic
position of a point on Earth given the starting geodetic coordinates
(latitude/longitude), and the geodetic coordinates of the rotation axis,
and the amount and sense of the rotation. This algorithm is typically used
to track tectonic plate position over time given an absolute pole of
rotation.
Alidade_Datasheet.xlsm: reduces data taken with a standard
alidade (stadia intercept, crosshair, vertical angle) and converts to the
vertical and horizontal offset from the instrument base position.
