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Visualization of smallcircles and greatcircles in a stereographic projection.

Usage

stereo_smallcircle(
  x,
  d = 90,
  col = 1,
  N = 1000,
  upper.hem = FALSE,
  lty = 1,
  lwd = 1,
  BALL.radius = 1,
  ...
)

stereo_greatcircle(x, ...)

Arguments

x

Object of class "line" or "plane"

d

numeric. conical angle in degrees.

col, lty, lwd

color, line type, and line width parameters

N

integer. number of points to calculate

upper.hem

logical. Whether the projection is shown for upper hemisphere (TRUE) or lower hemisphere (FALSE, the default).

BALL.radius

numeric size of sphere

...

optional graphical parameters

Examples

stereoplot()
stereo_point(Line(90, 5), lab = "L")
stereo_smallcircle(Line(90, 5), d = 10)
stereo_point(Plane(120, 30), lab = "P", col = "red")
stereo_greatcircle(Plane(120, 30), col = "red")