Private Functions

CorrelatedEnsemble3D(matrix::Array{N, 2}, Nsize::Int64) where {N<:Float64}

Generates a series of samples [x y z] based on a covariance matrix.

CovIsZero(cov::Covariance)

Check whether all Covariance elements are zero.

CheckCovariance(covMatrix::Array{N, 2}) where {N<:Float64}

Check whether the covariance matrix yields any negative or imaginary eigenvalue.

CovToMatrix(FR::Union{FiniteRotSph, FiniteRotCart})

Converts a Finite Rotations Covariance structure [radians^2] to a 3x3 symmetric Matrix [radians^2].

CovToMatrix(EVs::Union{EulerVectorSph, EulerVectorCart})

Convert an Euler Vector Covariance structure [radians²/Myr²] to a 3x3 symmetric Matrix [degrees²/Myr²].

ReplaceCovariaceEigs(covMatrix::Array{N, 2}) where {N<:Float64}

Checks if a covariance-matrix has negative or imaginary eigenvalues, and replace the diagonal elements (variances) with an average of the positive eigenvalues, while the other elements (covariances) are replaced by zeros.

ToArray(cov::Covariance)

Convert a Covariance structure to a 1x6 Matrix.

ChangeLon(FRs::FiniteRotSph, newLon::Float64)

Change the :Lon (longitude) value of FRs with newLon.

ChangeLat(FRs::FiniteRotSph, newLat::Float64)

Change the :Lat (latitude) value of FRs with newLat.

ChangeAngle(FRs::FiniteRotSph, newAngle::Float64)

Change the :Angle (angle) value of FRs with newAngle.

ChangeTime(FRs::FiniteRotSph, newTime::Float64)

Change the :Time (rotation age) value of FRs with newTime.

ChangeCovariance(
    FRs::FiniteRotSph, newCovariance::Union{Covariance, Array{N}}) where {N<:Float64}

Change the ::Covariance (covariance elements) of FRs with newCovariance.

CartesianVelocity_toEN(pntLon::N, pntLat::N, SVcArray::Array{N, 2}) where {N<:Float64}

Converts a set of velocities from Cartesian to East/North (EN) components.

GeographicalCoords_toCartesian(pntLon::Float64, pntLat::Float64, Ht=0.0::Float64)

Converts local geographical coordinates (ellipsoidal) into Cartesian.