RockFab (version 1.2.1)

EllipAxes: Calculate ellipsoid axial lengths based on octahedral shear strain and Lode parameter.

Description

Function uses the octahedral shear strain and Lode parameter of a desired strain ellipsoid and returns the normalized axial lengths X Y and Z.

Usage

EllipAxes(es, nu)

Arguments

es

Octahedral shear strain. Values must be positive.

nu

Lode parameter. Values must be between -1 and 1.

Value

A numeric vector of length three with values returned in descending order (i.e. X, Y, and Z)

References

See for example: Ramsay, J. and M. Huber (1993). The techniques of modern structural geology.

Examples

# NOT RUN {
es <- runif(min = 0, max = 3, n = 1)
nu <- runif(min = -1, max = 1, n = 1)

EllipAxes(es = es, nu = nu)

# }