extract_valleys: Extract valleys

Description Usage Arguments Value

Description

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

Usage

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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.