taudem_d8flowdir {traudem}

D8 Flow Directions

Description

D8 Flow Directions

Usage

taudem_d8flowdir(
  input_elevation_grid,
  output_d8flowdir_grid = NULL,
  output_d8slopes_grid = NULL,
  n_processes = getOption("traudem.n_processes", 1),
  quiet = getOption("traudem.quiet", FALSE)
)

Arguments

input_elevation_grid

Pit filled elevation input data.

output_d8flowdir_grid

D8 flow directions output.

output_d8slopes_grid

D8 slopes output.

n_processes

Number of processes for mpiexec. If NULL TauDEM is called without mpiexec.

quiet

If FALSE output from TauDEM CLI is suppressed.

Details

See https://hydrology.usu.edu/taudem/taudem5/help53/D8FlowDirections.html

Value

List with the two output filenames.

Examples

test_dir <- withr::local_tempdir()
dir.create(test_dir)
 file.copy(
   system.file("test-data", "DEM.tif", package = "traudem"),
   file.path(test_dir, "DEM.tif")
 )
filled_pit <- taudem_pitremove(file.path(test_dir, "DEM.tif"))
outputs <- taudem_d8flowdir(filled_pit)
outputs