Package index • structr

All functions

Fault_rake() Fault_slip() Fault_plane(): Extract components of fault object

Mohr_calc(): Mohr circle parameters

Mohr_plot(): Mohr Circle plot

PR_stress(): Principal stresses from 2D stress components

Plane_from_apparent_dips(): Apparent dip direction

Plane_pitch(): Pitch of a line of a plane

RGN_plot(): Rigid Grain Net (RGN)

Rphi_plot(): R/phi plot

Rphi_polar_plot(): Polar R/phi plot

SH(): Direction of maximum horizontal stress from the stress tensor

SH_from_tensor(): Direction of maximum horizontal stress from the stress tensor (full knowledge)

apparent_dip_direction(): Apparent dip direction

azimuth_to_cardinal(): Converts azimuth angles into Cardinal directions

best_fit_plane(): Least-square fit of small and great circles to spherically projected data

best_cone_ramsay() best_cone_ramsay2(): The cone or plane best fit of conically or cylindrical disposed s-plane poles

bingham_statistics(): Elliptical concentration and confidence cone estimation

center(): Centering vectors

is.spherical() is.Vec3() is.Line() is.Plane() is.Pair() is.Fault() as.spherical() as.Vec3() as.Line() as.Plane() as.Pair() as.Fault() Vec3() Line() Plane() Pair() Fault() Spherical(): Structure classes

assign_col_d() assign_col() assign_col_binned() legend_c() legend_d(): Helper functions for color assignment and legends

count_points(): Point density

defgrad_from_ratio() defgrad_from_pair() defgrad_from_vectors() defgrad_from_axisangle() defgrad_from_comp(): Deformation Gradient Tensor

exponential_kamb() linear_inverse_kamb() square_inverse_kamb() kamb_count() schmidt_count(): Density estimation

density(<spherical>) density_calc(): Spherical density estimation

kent_mle() vmf_mle(): MLE of spherical rotational symmetric distributions

dist(<spherical>): Angular distance matrix for orientation vectors

drillcore_transformation(): Orientation of structures from drill core orientation angles

ellipse(): Add an Ellipse to existing plot

ell_volume() ell_lode() ell_nadai() ell_jelinek() ell_flinn() ell_size_invariant() ell_strain_invariant() ell_shape_invariant(): Ellipsoid shape parameters

example_lines: Example lines

example_planes: Example planes

fabric_indexes(): Fabric intensity and shape indices

fault_plot() hoeppner() angelier(): Add fault data to existing plot

fault_tensor() fault_tensor_decomposition(): Fault displacement tensor

fault_analysis(): Simple fault analysis

fault_displacements(): Fault displacement components

Fault_from_rake(): Fault from plane and rake

fisher_ftest(): Test of mean orientations

fisher_statistics(): Fisher's statistics

flinn_plot(): Flinn diagram

ggMohr(): Mohr Circle plot

ggframe(): Stereoplot Perimeter

ggstereo(): Stereoplot using ggplot

geom_contour_stereo() geom_contourf_stereo(): Stereoplot contouring using ggplot

velgrad_from_defgrad() defgrad_from_velgrad(): Velocity gradient and Deformation gradient tensors

gray_example: Example data from Gray et al. 1980 to find best small and great circle

head(<spherical>) tail(<spherical>): Return the First or Last Parts of an Object

holst: 3D strain data

hsu_fabric_plot(): Fabric plot of Hsü (1965)

hsu_plot(): Hsü plot

hypercontour(): Calculates densities for fabric and strain data

inertia_tensor(): Inertia tensor

lines(<spherical>): Add Lines to a Plot

sph_mean_pair() sph_var_pair(): Mean orientation of a set of pairs or faults

mean_strain_ellipse(): Mean strain ellipse

mean_strain_ellipse_ramsay(): Mean strain ellipse after Ramsay (1967)

oriHexagonalTrapezohedralGroup(): Hexagonal trapezohedral is the point group of beta-quartz.

oriLineInPlaneGroup(): Line-in-plane symmetry is applicable to foliation-lineations, cylindrical fold orientations, triaxial ellipsoid orientations, and earthquake focal mechanisms (and olivine).

oriRayInPlaneGroup(): Ray-in-plane symmetry is applicable to faults-with-slip-directions, such as slickensides (and certain minerals).

oriTrigonalTrapezohedralGroup(): Trigonal trapezohedral is the point group of alpha-quartz.

oriTrivialGroup(): When trivial symmetry is used, the orientations are simply rotations. This case is so important that we have separate code, in rot.R, for doing it. But let's include the trivial group, for completeness.

ortensor(): Orientation tensor

ot_eigen(): Eigenvalues and Eigenvectors of a Set of Vectors

misfit_pair() correct_pair(): Orthogonalization of plane and line measurement

plot(<spherical>): Plot spherical objects

points(<spherical>): Add Points to a Plot

gg() ggl(): Prepare points and lines for ggplot

ramsay: R/phi data

rfb(): Spherical Fisher-Bingham distribution

rhr2dd() dd2rhr(): Converts strike into dip direction using right-hand rule

rkent(): Kent distribution

runif.spherical(): Uniformly distributed vectors

sigma13(): Principle stresses

simongomez: Example data set

slerp(): Spherical Linear Interpolation (Slerp)

sph_cluster(): Cluster spherical data

split_trailing_letters(): Parse measurement and direction strings

sph_mean() sph_sd() sph_var() sph_confidence_angle() rdegree() sd_error() delta() estimate_k(): Statistical estimators of the distribution of a set of vectors

stereo_pair(): Stereographic projection of pairs

stereo_arrows(): Add Arrows to a Stereoplot

stereo_smallcircle() stereo_greatcircle(): Stereographic projection of cones

contour(<spherical>) contourf() image(<spherical>): Plot spherical densities in a stereonet

stereo_coords(): Stereographic projection

stereo_point(): Stereographic projection of lines and planes

stereoplot(): Stereographic projection

stereoplot_frame(): Stereoplot frame

stereoplot_guides(): Stereoplot gridlines

stereoplot_ticks(): Stereoplot tickmarks

read_strabo_xls() read_strabo_mobile() read_strabo_JSON(): Import orientation data from StraboSpot

principal_stretch() principal_strain() or_shape_params(): Principal Stretches, Strain and Shape Parameters based on the Orientation Tensor.

diff_stress() mean_stress() shear_stress() normal_stress() fracture_angle() slip_tendency() dilatation_tendency(): Stress components

stress_transformation(): Stress transformation

structr structr-package: library(structr)

summary(<spherical>): Summary statistics

tau_max(): Maximum in-plane shear stress

text(<spherical>): Add Points to a Plot

vec_list(): List of vectors

vector_length() crossprod(<spherical>) dotprod() rotate() angle() project() reject() transform_linear(): Vector math operations

velgrad_rate() velgrad_spin(): Rate and spin of velocity gradient tensor

vollmer_plot(): Fabric plot of Vollmer (1990)

rvmf() dvmf(): von Mises-Fisher Distribution

woodcock_plot(): Fabric plot of Woodcock (1977)