#' Function to create a raster object from either a raster-extent or spatial
#' object.
#'
#' @param x Raster-extent or spatial object.
#'
#' @param projection \code{x}'s latitude and longitude projection system.
#' Default is WGS84.
#'
#' @param resolution A vector with the length of 1 or 2 indicating the
#' resolution of the raster object, in the units of \code{projection}.
#'
#' @param values Values for the raster object to have. This vector is passed to
#' \code{\link{ra_set_values}}.
#'
#' @param ra Raster object.
#'
#' @export
ra_raster <- function(x, projection = projection_wgs84(), resolution = NA,
values = NA) {
# inherits(a, "Extent")
# Create raster, bit of replication here, should to be dropped at some point
if (!is.na(resolution)) {
ra <- raster::raster(x, crs = projection, resolution = resolution)
} else {
ra <- raster::raster(x, crs = projection)
}
# Add values to raster
if (!is.na(values[1])) {
ra <- ra_set_values(ra, values = values)
}
return(ra)
}
#' @rdname ra_raster
#'
#' @export
ra_set_values <- function(ra, values) {
raster::setValues(ra, values = values)
}
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