fancyarrows: Make fancy arrows

In RFOC: Graphics for Spherical Distributions and Earthquake Focal Mechanisms

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<[e-mail]>

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)

RFOC documentation built on Sept. 8, 2023, 6:12 p.m.