# SynAnticline: Syncline and Anticline traces In GEOmap: Topographic and Geologic Mapping

## Description

Syncline and Anticline traces

## Usage

 ```1 2``` ```SynAnticline(x, y, syn = TRUE, spacing = NULL, N = 1, r1 = 1, r2 = 1.2, h1 = 0, h2 = 0, endtol = 0.1, REV = FALSE, col = "black", ...) ```

## Arguments

 `x` x-coordinates `y` y-coordinates `syn` logical, TRUE=syncline, FALSE=anticline `spacing` spacing of points `N` number of points `r1` x-radius of curled part `r2` y-radius of curled part `h1` length of first leg `h2` length of 2nd leg `endtol` indent on either ends `REV` reverse direction of x-y `col` color of teeth and line `...` graphical parameters

## Value

Graphical Side effect

## Author(s)

Jonathan M. Lees<[email protected]

 ``` 1 2 3 4 5 6 7 8 9 10 11 12 13 14``` ```ff=list() ff\$x=c(-4.850,-4.700,-3.934,-2.528, 0.603, 2.647, 3.861, 2.626) ff\$y=c(-4.045,-2.087,-0.710, 0.172, 1.291, 2.087,-0.753,-4.131) G =getsplineG(ff\$x, ff\$y, kdiv=20) ######## anticline plot(c(-5,5), c(-5,5), asp=1, type='n' ) SynAnticline(G\$x,G\$y, N=5, syn=FALSE, endtol=.2) ######## syncline plot(c(-5,5), c(-5,5), asp=1, type='n' ) SynAnticline(G\$x,G\$y, N=5, syn=FALSE, endtol=.2) ```