ggRGB: RGB spatial plot with ggplot

In loicdtx/ggSpatial: Prepare spatial objects for plotting with ggplot2

Description

Produces an object to feed into ggplot geom_raster or geom_tile to produce a rgb plot

Usage

ggRGB(x, r, g, b)

Arguments

x	RasterStackBrick object
r	Numeric Band number to be plotted in red
g	Numeric Band number to be plotted in green
b	Numeric Band number to be plotted in blue

Author(s)

Loic Dutrieux (using some code snippets by Josh Gray and Robert Hijmans)

Examples

library(ggplot2)
library(raster)

x <- brick(system.file("external/rlogo.grd", package="raster"))

ggrgb <- ggRGB(x, 3,2,1)

ggplot() +
    geom_raster(data = ggrgb, aes(x=x, y=y, fill=values)) +
    scale_fill_identity() +
    coord_equal() +
    scale_x_continuous(name = 'Lat', expand=c(0, 0)) +
    scale_y_continuous(name = 'Long', expand=c(0, 0))

loicdtx/ggSpatial documentation built on May 21, 2019, 7:37 a.m.