R: Make fancy arrows

fancyarrows {RFOC} | R Documentation

## Make fancy arrows

### Description

Create and plot fancy arrows. Aspect ratio must be set to 1-1 for these arrows to plot correctly.

### Usage

    fancyarrows(x1, y1, x2, y2, thick = 0.08,
         headlength = 0.4, headthick = 0.2, col = grey(0.5),
         border = "black")

### Arguments

`x1` | x tail coordinate
`y1` | y tail coordinate
`x2` | x head coordinate
`y2` | y head coordinate
`thick` | thickness of arrow
`headlength` | length of head
`headthick` | thickness of head
`col` | fill color
`border` | color of border

### Value

Graphical side effects.

### Note

fancyarrows only work if te aspect ratio is set to 1. See example below.

### Author(s)

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

### See Also

TEACHFOC

### Examples

       thick = 0.01; headlength = 0.2; headthick = 0.1

    x = runif(10, -1, 1)
    y = runif(10, -1, 1)

    ############   MUST set asp=1 here
    plot(x,y, asp=1)

    fancyarrows(rep(0, 10) , rep(0, 10) ,x, y,
    thick =thick , headlength =  headlength,
    headthick =headthick)

[Package RFOC version 3.4-3 Index]