get_single_voronoi

Polygon containing a core plot boundary. <code>core</code> has to
be a length one <code>sfc_POLYGON</code>-object.

core

An <code>sf</code>-object with a <code>sfc_POINT</code>geometry column and another
weighting column.

point

If available, a polygon containing a buffer plot boundary.
<code>buffer</code> has to be a length one <code>sfc_POLYGON</code>-object. Relevant to
decide which assignments of grid cells to points are critical.

buffer

Character vector of length one. This column of the
<code>point</code> dataset will be used as weight. If left out, an unweighted
Voronoi Diagram will be calculated.

weight_column

Character vector specifying additional columns in
/codepoint that will be added as separate classes to the output
/codeRaster-object.

class_columns

A numeric vector of length one specifying the resolution of the
output grid

Issue a warning if the coordinate system is not metric (which is not tested).

warn

Polygons are rasterized and a Weighted Voronoi Diagram is calculated.

internal

Maps of the 'area potentially available' (APA) of trees is calculated from
mapped forest stands using the approach from Gspaltl et al. (2012) <doi:10.1093/forestry/cps052>.
This is done by computing a rasterized version of
'weighted voronoi diagrams' using a an approximation of the trees competitive
ability (e.g., crown radius, leaf area) as weight. The main output are 'Raster*'-
objects from the 'raster' package that are stored together with the raw data in
apa_list's, the main class of the 'APAtree' package. Aggregation functions are
provided to calculate stand characteristics based on APA-maps such as relative
proportions according to APA-size and the neighborhood diversity index NDiv
(Glatthorn (2021) <doi:10.1016/j.ecolind.2021.108073>).

get_single_voronoi: Rasterized version of the 'Weighted Voronoi Diagram'

Description

Usage

Arguments

Value