Description Usage Arguments References See Also Examples

Spherical rotation around given rotation axes

1 | ```
rotate(dec, inc, rdec, rinc, rmag)
``` |

`dec` |
declination of the data; it is the angle from the north taken on an horizontal plane. It is measured clockwise from North and ranges from 0 to 360° (Tauxe 2010). |

`inc` |
inclination of the data; it is the angle from the horizontal, is positive downward, and ranges from +90° for straight down to -90° for straight up (Tauxe, 2010). |

`rdec` |
declination of the rotation axes (of length 1 or n). |

`rinc` |
inclination of the rotation axes (of length 1 or n). |

`rmag` |
magnitude of rotation (following the notation of the Stereonet software): a positive rotation is clockwise looking in the direction of the given declination and inclination; of length 1 or n). |

Tauxe, L., 2010. Essentials of Paleomagnetism. University of California Press.

Allmendinger, R. W., Cardozo, N. C., and Fisher, D., 2013, Structural Geology Algorithms: Vectors & Tensors: Cambridge, England, Cambridge University Press, 289 pp.

Cardozo, N., and Allmendinger, R. W., 2013, Spherical projections with OSXStereonet: Computers & Geosciences, v. 51, no. 0, p. 193 - 205, doi: 10.1016/j.cageo.2012.07.021

`rmatrix`

, `restore`

and
`reposition`

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | ```
earnet()
inc <- seq(0,85,5)
dec <- rep(0,length(inc))
earpoints(dec,inc)
rdec <- rep(0, length(inc))
rinc <- rep(90, length(inc))
mag <- 90
rmag <- seq(mag, 0, by = -mag/(length(inc)-1))
rot <- rotate(dec,inc,rdec,rinc,rmag)
earpoints(dec = round(rot$dec,digits = 2), inc = round(rot$inc,digits = 2),
l = list(bg = "green"),
u = list(bg = "blue"),
h = list(bg = "yellow"))
earpoints(dec = 0, inc = 90, l = list(bg = "red"))
``` |

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