Check raster uniformity

Verifies that all raster files in a folder are compatible with Zonation. Compatibility requires that all rasters have:

• identical resolution (cell size)

• identical extent (number of rows and columns)

• identical projection (CRS)

Usage

check_raster_uniformity(spp_file_dir)

Arguments

spp_file_dir

Character. Path to the folder containing raster files.

Value

Prints a message confirming uniformity. Stops with an error otherwise.

Details

Supported raster formats: .tif, .tiff, .img, .asc.

See also

Other preflight: check_dir_writable(), check_zonation_executable()

Examples

# \donttest{
withr::with_tempdir({

  r1 <- terra::rast(nrows = 5, ncols = 5)
  terra::values(r1) <- runif(terra::ncell(r1))

  r2 <- terra::rast(r1)
  terra::values(r2) <- runif(terra::ncell(r2))

  terra::writeRaster(r1, "r1.tif", overwrite = TRUE)
  terra::writeRaster(r2, "r2.tif", overwrite = TRUE)

  check_raster_uniformity(".")
})
#> All raster files in '.' are spatially uniform and compatible with Zonation.
# }