wbt_multiscale_topographic_position_image

Creates a multiscale topographic position image from three DEVmax rasters of differing spatial scale ranges.

GeomorphometricAnalysis

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_multiscale_topographic_position_image function

<dl><dt>local</dt>
<dd>Input local-scale topographic position (DEVmax) raster file.</dd>
<dt>meso</dt>
<dd>Input meso-scale topographic position (DEVmax) raster file.</dd>
<dt>broad</dt>
<dd>Input broad-scale topographic position (DEVmax) raster file.</dd>
<dt>output</dt>
<dd>Output raster file.</dd>
<dt>hillshade</dt>
<dd>Input optional hillshade raster file. Note: a multi-directional (360-degree option) hillshade tends to work best in this application.</dd>
<dt>lightness</dt>
<dd>Image lightness value (default is 1.2).</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

Multiscale topographic position image — wbt_multiscale_topographic_position_image

<dl>

<dt>local</dt>
<dd>Input local-scale topographic position (DEVmax) raster file.</dd>


<dt>meso</dt>
<dd>Input meso-scale topographic position (DEVmax) raster file.</dd>


<dt>broad</dt>
<dd>Input broad-scale topographic position (DEVmax) raster file.</dd>


<dt>output</dt>
<dd>Output raster file.</dd>


<dt>hillshade</dt>
<dd>Input optional hillshade raster file. Note: a multi-directional (360-degree option) hillshade tends to work best in this application.</dd>


<dt>lightness</dt>
<dd>Image lightness value (default is 1.2).</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_multiscale_topographic_position_image: Multiscale topographic position image

Description

Usage

Value

Arguments