RFOC: addsmallcirc – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

addsmallcirc

Small Circle on Stereonet

Calculate and plot small circle on Stereo net at arbitrary azimuth, orientation and conical angle

addsmallcirc(az, iang, alphadeg, BALL.radius = 1, N = 100, add = TRUE, ...)

`az`	Azimuth of axis
`iang`	angle of dip, degrees
`alphadeg`	width of cone in degrees
`BALL.radius`	size of sphere
`N`	NUmber of points to calculate
`add`	logical, TRUE=add to existing plot
`...`	graphical parameters

Given the azimuth and dip of a vector, plot the small circle around the pole with conical angle alphadeg

LIST:

`x`	x-coordinates
`y`	y-coordinates

alphadeg is the radius of the conic projection

Jonathan M. Lees<jonathan.lees@unc.edu>

net()
addsmallcirc(65, 13, 20, BALL.radius = 1, N = 100, add = TRUE)
addsmallcirc(165, 73, 5.6, BALL.radius = 1, N = 100, add = TRUE)

Graphics for Spherical Distributions and Earthquake Focal Mechanisms

v3.4-6

GPL (>= 2)

Authors

Jonathan M. Lees [aut, cre], Keehoon Kim [ctb]

Initial release

2018-01-17