plotArrow: Plots a neat North arrow

In vetools: Tools for Venezuelan Environmental Data

Description

Simple and configurable alternative to draw a "North Arrow" on maps.

Usage

plotArrow(shape="",
        pos = 1,
        offset.arrow = c(0, 0),
        north.lwd = par()$lwd+2,
        north.col = par()$col,
        ...)

Arguments

shape	The shape file used to estimate the x and y coordinates on where to plot the arrow's polygons
pos	Where to position the arrow: 1 SW, 2 SE, 3 NE, 4 NW.
offset.arrow	Offset pair (x.offset, y.offset).
north.lwd	Line width for the North lines.
north.col	Color to apply to the North lines
...	With ..., it is possible to specify the color and thickness of the arrow via the col and lwd parameters. Overall magnification is controlled by cex.

Note

This implementation should support adding the scale bar.

Author(s)

A.M. Sajo-Castelli

See Also

plotLayers

vetools documentation built on May 2, 2019, 10:15 a.m.