wbt: Run WhiteboxTools by Tool Name

In whitebox: 'WhiteboxTools' R Frontend

Run WhiteboxTools by Tool Name

Description

You are required to specify all required arguments as either paths to files, or R object types that can be associated with a file.

wbt_result(): return a combined list of results from either the history of a wbt_result (if present and history=TRUE), or the result of a wbt_result

Usage

wbt(
  result,
  tool_name,
  ...,
  crs = NULL,
  verbose_mode = FALSE,
  command_only = FALSE
)

## S3 method for class 'wbt_result'
wbt(
  result,
  tool_name,
  ...,
  crs = NULL,
  verbose_mode = FALSE,
  command_only = FALSE
)

wbt_result(result, i = NULL, history = TRUE, attribute = "output")

## S3 method for class 'character'
wbt(
  result,
  tool_name,
  ...,
  crs = NULL,
  verbose_mode = FALSE,
  command_only = FALSE
)

## S3 method for class ''function''
wbt(
  result,
  tool_name,
  ...,
  crs = NULL,
  verbose_mode = FALSE,
  command_only = FALSE
)

## S3 method for class 'missing'
wbt(
  result,
  tool_name,
  ...,
  crs = NULL,
  verbose_mode = FALSE,
  command_only = FALSE
)

Arguments

result	an object of class wbt_result
tool_name	character. name of the tool to run. Or a tool/function name (i.e. a symbol) that is non-standard evaluated as a character.
...	arguments to tool
crs	character Optional: a WKT Coordinate Reference System string, or other identifier such as EPSG code or PROJ string
verbose_mode	passed to wbt_run_tool()
command_only	Return command that would be run with system()? Default: FALSE
i	Optional index of result list element to return as result. Default is whole list.
history	Default: TRUE returns a list of all history results
attribute	Default: "output"

Details

Supports SpatRaster / RasterLayer input / output. Arguments are transformed from their source class and passed to WhiteboxTools executable as standard character string arguments involving file paths.

To print help for any tool, see wbt_tool_help()

tool_name may be specified with or without quotes or wbt_ prefix. e.g. "wbt_slope", wbt_slope, slope, and "slope" are identical.

Value

a list with class "wbt_result" containing elements:

• tool - the tool name

• args - arguments passed to executable

• stdout - console output (result of wbt_run_tool())

• crs - Coordinate Reference System string (WKT or PROJ)

• result - any 'result' parameters (--output) that can be converted to R objects after run. A list of RasterLayer or character. May be a try-error if arguments are specified incorrectly.

• history - history of 'result' when wbt_result was passed as input, most recent output at end

list of result in attribute if "history" is present, otherwise the result in attribute. If i is specified, just the ith element of the list.

See Also

wbt_tool_help()

whitebox documentation built on May 29, 2024, 1:21 a.m.