extract_valleys: Extract valleys

In whitebox: 'WhiteboxTools' R Frontend

Description

Identifies potential valley bottom grid cells based on local topolography alone.

Usage

extract_valleys(dem, output, variant = "LQ", line_thin = TRUE,
  filter = 5, verbose_mode = FALSE)

Arguments

dem	Input raster DEM file.
output	Output raster file.
variant	Options include 'LQ' (lower quartile), 'JandR' (Johnston and Rosenfeld), and 'PandD' (Peucker and Douglas); default is 'LQ'.
line_thin	Optional flag indicating whether post-processing line-thinning should be performed.
filter	Optional argument (only used when variant='lq') providing the filter size, in grid cells, used for lq-filtering (default is 5).
verbose_mode	Sets verbose mode. If verbose mode is False, tools will not print output messages.

Value

Returns the tool text outputs.

whitebox documentation built on Sept. 7, 2020, 3 p.m.