fast_unlist_dist

extracts the distances from a nested list created by dbscan::frNN

Functionality for segmenting individual trees from a forest stand scanned with a close-range (e.g., terrestrial or mobile) laser scanner. The complete workflow from a raw point cloud to a complete tabular forest inventory is provided. The package contains several algorithms for detecting tree bases and a graph-based algorithm to attach all remaining points to these tree bases. It builds heavily on the 'lidR' package. A description of the segmentation algorithm can be found in Larysch et al. (2025) <doi:10.1007/s10342-025-01796-z>.

Julian Frey

CspStandSegmentation

Comparative Shortest Path Forest Stand Segmentation from LiDAR
Data

fast_unlist_dist function

<dl><dt>list</dt>
<dd>a list element created by dbscan::frNN</dd>
<dt>l</dt>
<dd>the expected length of the result</dd></dl>

Arguments

Julian Frey &lt;julian.frey@iww.uni-freiburg.de&gt;

Author

helper function to unlist distances computed by dbscan::frNN — fast_unlist_dist

<dl>

<dt>list</dt>
<dd>a list element created by dbscan::frNN</dd>


<dt>l</dt>
<dd>the expected length of the result</dd>

</dl>

fast_unlist_dist: helper function to unlist distances computed by dbscan::frNN

Description

Usage

Value

Arguments

Author