gridmetrics: summarize lidar for raster pixels

In jstrunk001/RSForInvt: Remote Sensing FORest INVenTory related analysis tasks, especially FUSION, lidR, NVEL

summarize lidar for raster pixels

Description

summarize lidar for raster pixels

Usage

gridmetrics(
  las_files,
  dtm_files = NA,
  dtm_folder = NA,
  dtm_ext = ".dtm",
  no_dtm = F,
  fun = compute_metrics2,
  xmin = NA,
  xmax = NA,
  ymin = NA,
  ymax = NA,
  res = 66,
  grid = NA,
  n_read = NA,
  out_name = NA,
  return = F,
  con = NA,
  out_table = NA,
  ...
)

Arguments

las_files	list of paths to las files
dtm_files	optional list of paths to dtms
dtm_folder	optional folder of dtms
dtm_ext	what is the file extension of dtms
xmin	(optional) force extent of analysis
xmax	(optional) force extent of analysis
ymin	(optional) force extent of analysis
ymax	(optional) force extent of analysis
res	resolution of processing analysis in units of provided lidar / dtm
grid	pre-defined raster for analysis - lidar metrics are computed for each cell
intersect_only	only provide outputs over areas in which lidar and dtms intersect?
fns	list of functions that will be used to generate columns of summary statistics from the las data

Details

summarize lidar for raster pixels

This program is free software but it is provided WITHOUT WARRANTY and with ABSOLUTELY NO GUARANTEE of fitness or functionality for any purpose; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

Revision History

1.0	2017 March 08 Created

Value

optional dataframe of xy coordinates for cell centers and additional columns of metrics

Author(s)

Jacob Strunk <[e-mail]>

See Also

read_las
read_dtm

Examples

dtms1="C:\\temp\\dtm_test\\"
las1="C:\\temp\\lidar_test\\"
las_files=list.files(las1,pattern="[.]las",full.names=T)
dtm_files=list.files(dtms1,pattern="[.]dtm",full.names=T)
metrics=gridmetrics(las_files=las_files,dtm_files=dtm_files)
head(metrics)

jstrunk001/RSForInvt documentation built on April 18, 2022, 11:03 p.m.