Lidar ground point filter — wbt_lidar_ground_point

Identifies ground points within LiDAR dataset using a slope-based method.

Usage

wbt_lidar_ground_point_filter(
  input,
  output,
  radius = 2,
  min_neighbours = 0,
  slope_threshold = 45,
  height_threshold = 1,
  classify = TRUE,
  slope_norm = TRUE,
  height_above_ground = FALSE,
  wd = NULL,
  verbose_mode = NULL,
  compress_rasters = NULL,
  command_only = FALSE
)

Arguments

input: Input LiDAR file.
output: Output LiDAR file.
radius: Search Radius.
min_neighbours: The minimum number of neighbouring points within search areas. If fewer points than this threshold are identified during the fixed-radius search, a subsequent kNN search is performed to identify the k number of neighbours.
slope_threshold: Maximum inter-point slope to be considered an off-terrain point.
height_threshold: Inter-point height difference to be considered an off-terrain point.
classify: Classify points as ground (2) or off-ground (1).
slope_norm: Perform initial ground slope normalization?.
height_above_ground: Transform output to height above average ground elevation?.
wd: Changes the working directory. Default: NULL will use the value in WhiteboxTools settings, see wbt_wd() for details.
verbose_mode: Sets verbose mode. If verbose mode is FALSE, tools will not print output messages. Default: NULL will use the value in WhiteboxTools settings, see wbt_verbose() for details.
compress_rasters: Sets the flag used by 'WhiteboxTools' to determine whether to use compression for output rasters. Default: NULL will use the value in WhiteboxTools settings, see wbt_compress_rasters() for details.
command_only: Return command that would be executed by system() rather than running tool. Default: FALSE.

Value

Returns the tool text outputs.