Describe arrows to add to a line.

arrow {grDevices}

R Documentation

Describe arrows to add to a line.

Description

Produces a description of what arrows to add to a line. The result can be passed
to a function that draws a line, e.g., grid.lines.

Usage

arrow(
    angle = 30,
    length = "~unit(0.25, "inches")",
    ends = "last",
    type = "open");

Arguments

angle

The angle of the arrow head in degrees (smaller numbers produce narrower, pointier arrows). Essentially describes the width of the arrow head. [as double]

length

A unit specifying the length of the arrow head (from tip to base).

ends

One of "last", "first", or "both", indicating which ends of the line to draw arrow heads. [as string]

type

One of "open" or "closed" indicating whether the arrow head should be a closed triangle. [as string]

Authors

graphics

Value

this function returns data object of type Triangle.

clr value class

Triangle

[Package grDevices version 1.0.0.0 Index]