Geom for RasterLayer objects
This function takes a RasterLayer object, converts it into a SpatialPixelsDataFrame and uses geom_tile to plot the data.
## S3 method for class 'RasterLayer' gg(data, mapping = aes_string(x = "x", y = "y", fill = "layer"), ...)
This function requires the raster package.
An object returned by geom_tile
# Some features require the raster and spatstat.data packages.
if (require("spatstat.data", quietly = TRUE) &&
require("raster", quietly = TRUE)) {
# Load Gorilla data
data("gorillas", package = "spatstat.data")
# Convert elevation covariate to RasterLayer
elev <- as(gorillas.extra$elevation, "RasterLayer")
# Plot the elevation
ggplot() +
gg(elev)
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