get_clip_ext

Return clipping extent with buffer radius.
It assumes the input CRS is projected and linear unit is meters.

internal

Geospatial data computation is parallelized by grid, hierarchy,
or raster files. Based on 'future' (Bengtsson, 2024 <doi:10.32614/CRAN.package.future>)
and 'mirai' (Gao et al., 2025 <doi:10.32614/CRAN.package.mirai>) parallel back-ends,
'terra' (Hijmans et al., 2025 <doi:10.32614/CRAN.package.terra>) and
'sf' (Pebesma et al., 2024 <doi:10.32614/CRAN.package.sf>)
functions as well as convenience functions in the package can be distributed
over multiple threads. The simplest way of parallelizing generic geospatial
computation is to start from par_pad_*() functions to par_grid(),
par_hierarchy(), or par_multirasters() functions. Virtually any functions
accepting classes in 'terra' or 'sf' packages can be used in the three
parallelization functions. A common raster-vector overlay operation
is provided as a function extract_at(), which uses
'exactextractr' (Baston, 2023 <doi:10.32614/CRAN.package.exactextractr>), with
options for kernel weights for summarizing raster values at vector geometries.
Other convenience functions for vector-vector operations including
simple areal interpolation (summarize_aw()) and summation of
exponentially decaying weights (summarize_sedc()) are also provided.

Insang Song

chopin

Spatial Parallel Computing by Hierarchical Data Partitioning

Kyle Messier

Alec L. Robitaille

Eric R. Scott

get_clip_ext function

<dl><dt>pnts</dt>
<dd>One of sf or SpatVector object. Target points of computation.</dd>
<dt>radius</dt>
<dd>numeric(1). Buffer radius. It is assumed to be in meters</dd>
<dt>extrusion</dt>
<dd>numeric(1). The extent extrusion factor.
Default is 1.1, meaning that the actual padding is 10 percent
wider than <code>radius</code>.</dd></dl>

Arguments

Author

Setting the clipping extent — get_clip_ext

<dl>

<dt>pnts</dt>
<dd>One of sf or SpatVector object. Target points of computation.</dd>


<dt>radius</dt>
<dd>numeric(1). Buffer radius. It is assumed to be in meters</dd>


<dt>extrusion</dt>
<dd>numeric(1). The extent extrusion factor.
Default is 1.1, meaning that the actual padding is 10 percent
wider than <code>radius</code>.</dd>

</dl>

get_clip_ext: Setting the clipping extent

Description

Usage

Value

Arguments

Author

See Also