wbt_time_in_daylight: Time in daylight

In whitebox: 'WhiteboxTools' R Frontend

Description

Calculates the proportion of time a location is within an area of shadow.

Usage

wbt_time_in_daylight(
  dem,
  output,
  lat,
  long,
  az_fraction = 10,
  max_dist = 100,
  utc_offset = "0000",
  start_day = 1,
  end_day = 365,
  start_time = "000000",
  end_time = "235959",
  wd = NULL,
  verbose_mode = FALSE
)

Arguments

dem	Input raster DEM file.
output	Output raster file.
lat	Centre point latitude.
long	Centre point longitude.
az_fraction	Azimuth fraction in degrees.
max_dist	Optional maximum search distance. Minimum value is 5 x cell size.
utc_offset	UTC time offset, in hours (e.g. -04:00, +06:00).
start_day	Start day of the year (1-365).
end_day	End day of the year (1-365).
start_time	Starting hour to track shadows (e.g. 5, 5:00, 05:00:00). Assumes 24-hour time: HH:MM:SS. 'sunrise' is also a valid time.
end_time	Starting hour to track shadows (e.g. 21, 21:00, 21:00:00). Assumes 24-hour time: HH:MM:SS. 'sunset' is also a valid time.
wd	Changes the working directory.
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.