# normalfault: Normal Fault trace In GEOmap: Topographic and Geologic Mapping

## Description

Plot normal fault on map.

## Usage

 `1` ```normalfault(x, y, h = 1, hoff = 1, rot = list(cs = 1, sn = 0), col = "black") ```

## Arguments

 `x` x-coordinates `y` y-coordinates `h` radius of ball `hoff` distance from line `rot` rotation vectors, (cosines and sines) `col` color

## Details

Rotation vector is provided as list(cs=vector(), sn=vector()).

## Value

Graphical Side Effects

## Author(s)

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

 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17``` ```G=list() G\$x=c(-1.0960,-0.9942,-0.8909,-0.7846,-0.6738,-0.5570,-0.4657,-0.3709, -0.2734,-0.1740,-0.0734, 0.0246, 0.1218, 0.2169, 0.3086, 0.3956, 0.4641, 0.5293, 0.5919, 0.6530, 0.7131) G\$y=c(-0.72392,-0.62145,-0.52135,-0.42599,-0.33774,-0.25896,-0.20759, -0.16160,-0.11981,-0.08105,-0.04414,-0.00885, 0.02774, 0.06759, 0.11262, 0.16480, 0.21487, 0.27001, 0.32895, 0.39044, 0.45319) plot(G\$x, G\$y, type='n',asp=1, axes=FALSE, xlab='', ylab='') g = PointsAlong(G\$x, G\$y, N=3) sk = 2 lines(G\$x,G\$y,col='blue') bcars(g\$x,g\$y, h1=sk, h2=sk*.5, g\$rot, col='black', border='black' ) ```