wbt_lidar_point_density

Calculates the spatial pattern of point density for a LiDAR data set. When the input/output parameters are not specified, the tool grids all LAS files contained within the working directory.

LiDARTools

An R frontend for the 'WhiteboxTools' library, which is an advanced geospatial data analysis platform developed by Prof. John Lindsay at the University of Guelph's Geomorphometry and Hydrogeomatics Research Group. 'WhiteboxTools' can be used to perform common geographical information systems (GIS) analysis operations, such as cost-distance analysis, distance buffering, and raster reclassification. Remote sensing and image processing tasks include image enhancement (e.g. panchromatic sharpening, contrast adjustments), image mosaicing, numerous filtering operations, simple classification (k-means), and common image transformations. 'WhiteboxTools' also contains advanced tooling for spatial hydrological analysis (e.g. flow-accumulation, watershed delineation, stream network analysis, sink removal), terrain analysis (e.g. common terrain indices such as slope, curvatures, wetness index, hillshading; hypsometric analysis; multi-scale topographic position analysis), and LiDAR data processing. Suggested citation: Lindsay (2016) <doi:10.1016/j.cageo.2016.07.003>.

Andrew Brown

whitebox

'WhiteboxTools' R Frontend

Qiusheng Wu

wbt_lidar_point_density function

<dl><dt>input</dt>
<dd>Input LiDAR file (including extension).</dd>
<dt>output</dt>
<dd>Output raster file (including extension).</dd>
<dt>returns</dt>
<dd>Point return types to include; options are 'all' (default), 'last', 'first'.</dd>
<dt>resolution</dt>
<dd>Output raster's grid resolution.</dd>
<dt>radius</dt>
<dd>Search radius.</dd>
<dt>exclude_cls</dt>
<dd>Optional exclude classes from interpolation; Valid class values range from 0 to 18, based on LAS specifications. Example, --exclude_cls='3,4,5,6,7,18'.</dd>
<dt>minz</dt>
<dd>Optional minimum elevation for inclusion in interpolation.</dd>
<dt>maxz</dt>
<dd>Optional maximum elevation for inclusion in interpolation.</dd>
<dt>wd</dt>
<dd>Changes the working directory.</dd>
<dt>verbose_mode</dt>
<dd>Sets verbose mode. If verbose mode is <code>FALSE</code>, tools will not print output messages.</dd>
<dt>compress_rasters</dt>
<dd>Sets the flag used by 'WhiteboxTools' to determine whether to use compression for output rasters.</dd>
<dt>command_only</dt>
<dd>Return command that would be executed by <code><a href="/link/system()?package=whitebox&version=2.3.1" data-mini-rdoc="whitebox::system()">system()</a></code> rather than running tool.</dd></dl>

Arguments

Lidar point density — wbt_lidar_point_density

<dl>

<dt>input</dt>
<dd>Input LiDAR file (including extension).</dd>


<dt>output</dt>
<dd>Output raster file (including extension).</dd>


<dt>returns</dt>
<dd>Point return types to include; options are 'all' (default), 'last', 'first'.</dd>


<dt>resolution</dt>
<dd>Output raster's grid resolution.</dd>


<dt>radius</dt>
<dd>Search radius.</dd>


<dt>exclude_cls</dt>
<dd>Optional exclude classes from interpolation; Valid class values range from 0 to 18, based on LAS specifications. Example, --exclude_cls='3,4,5,6,7,18'.</dd>


<dt>minz</dt>
<dd>Optional minimum elevation for inclusion in interpolation.</dd>


<dt>maxz</dt>
<dd>Optional maximum elevation for inclusion in interpolation.</dd>


<dt>wd</dt>
<dd>Changes the working directory.</dd>


<dt>verbose_mode</dt>
<dd>Sets verbose mode. If verbose mode is <code>FALSE</code>, tools will not print output messages.</dd>


<dt>compress_rasters</dt>
<dd>Sets the flag used by 'WhiteboxTools' to determine whether to use compression for output rasters.</dd>


<dt>command_only</dt>
<dd>Return command that would be executed by <code><a href='https://rdrr.io/r/base/system.html'>system()</a></code> rather than running tool.</dd>

</dl>

wbt_lidar_point_density: Lidar point density

Description

Usage

Value

Arguments