This function is used internally by plot_layer to convert a Raster* object to a data.frame of colors for each pixel that can be used for plotting with ggplot2

## Usage

raster_colors(x)

x

A Raster* object

## Value

A data.frame with 3 columns and length(raster_object) rows. Two of these columns are the x-y coordinates of each pixel, and one is a value for color that can be used for plotting

## Examples

if (FALSE) {
wi_landcover <- get_map_layer(wi_landcover_url, wis_poly)
wi_landcover_data <- raster_colors(wi_landcover)