Stereographic projection of pairs

Visualization of pairs (planes and lines) in a stereographic projection.

Usage

stereo_pair(
  x,
  pch = 16,
  col = 1,
  lwd = 1,
  lty = 1,
  lab = NULL,
  cex = 1,
  greatcircles = TRUE,
  upper.hem = FALSE,
  earea = TRUE
)

Arguments

x

Object of class "Fault"

pch, col, lwd, lty

plotting parameters for planes and lines

lab

character. text labels

cex

character expansion of labels

greatcircles

logical. Whether greatcircles are displayed (TRUE, the default) or poles to planes (FALSE)

upper.hem

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

earea

logical TRUE for Lambert equal-area projection (also "Schmidt net"; the default), or FALSE for meridional stereographic projection (also "Wulff net" or "Stereonet").

Note

"Plane" objects will be displayed as pole to the plane.

Examples

faults <- Fault(
  c(0, 90, 180, 270),
  c(80, 45, 80, 45),
  c(0, 170, 180, 315),
  c(80, 10, 80, 36),
  c(1, -1, 0, 1)
)
# stereoplot()
# stereo_fault(faults, col = 1:4)
# stereo_fault(faults, col =1:4, hoeppner = TRUE)
# legend("bottomright", c("normal", "thrust", "unknown", "normal"), fill = 1:4)

stereoplot()
stereo_pair(faults, col = 1:4)