Starting with rasterpic is very easy! You just need
a image (png
, jpeg/jpg
or
tif/tiff
) and a spatial object from the sf
or the terra package to start using it.
We use here as an example the shape of Austria:
library(sf)
library(terra)
library(rasterpic)
# Plot
library(tidyterra)
library(ggplot2)
# Shape and image
x <- read_sf(system.file("gpkg/austria.gpkg", package = "rasterpic"))
img <- system.file("img/vertical.png", package = "rasterpic")
# Create!
default <- rasterpic_img(x, img)
autoplot(default) +
geom_sf(data = x)
The function provides several options for expanding, alignment and cropping.
With this option the image is zoomed out of the spatial object:
Decide where to align the image:
sf
,
sfc
, sfg
or bbox
.SpatRaster
, SpatVector
,
SpatExtent
.c(xmin, ymin, xmax, yman)
.rasterpic can parse the following image formats:
png
files.jpg/jpeg
files.tif/tiff
files.