Spatial ggplot2 layer for SpatRaster objects — layer

This is intended for use with RGB(A) rasters (e.g., georeferenced imagery or photos). To work with bands as if they were columns, use df_spatial() and ggplot2::geom_raster().

# S3 method for class 'SpatRaster'
layer_spatial(
  data,
  mapping = NULL,
  interpolate = NULL,
  is_annotation = FALSE,
  lazy = FALSE,
  dpi = 150,
  ...
)

# S3 method for class 'SpatRaster'
annotation_spatial(data, mapping = NULL, interpolate = NULL, ...)

StatSpatRaster

StatSpatRasterAnnotation

StatSpatRasterDf

GeomSpatRaster

Format

An object of class StatSpatialRaster (inherits from Stat, ggproto, gg) of length 3.

An object of class StatSpatRaster (inherits from StatSpatialRaster, Stat, ggproto, gg) of length 3.

An object of class StatSpatRasterDf (inherits from Stat, ggproto, gg) of length 5.

An object of class GeomSpatRaster (inherits from Geom, ggproto, gg) of length 5.

Arguments

data: A SpatRaster object created with terra::rast().
mapping: Currently, only RGB or RGBA rasters are supported. In the future, one may be able to map specific bands to the fill and alpha aesthetics.
interpolate: Interpolate resampling for rendered raster image
is_annotation: Lets raster exist without modifying scales
lazy: Delay projection and resample of raster until the plot is being rendered
dpi: if lazy = TRUE, the dpi to which the raster should be resampled
...: Passed to other methods

Value

A ggplot2 layer

Examples

# \donttest{

library(ggplot2)
load_longlake_data(
  which = c(
    "longlake_osm",
    "longlake_depth_raster"
  ),
  raster_format = "terra"
)
ggplot() +
  layer_spatial(longlake_osm)


ggplot() +
  layer_spatial(longlake_depth_raster) +
  scale_fill_continuous(
    na.value = NA,
    type = "viridis"
  )
#> Warning: Removed 6584 rows containing missing values or values outside the scale range
#> (`geom_raster()`).

# }