indexing

[,SpatVector,bbox,missing,ANY-method

[,SpatVector,sf,missing,ANY-method

[,SpatVector,sfc,missing,ANY-method

[,SpatVector,SpatExtent,missing,ANY-method

.intersect

Subset for nonidentical package class objects
Intersect different data model objects

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

indexing function

<dl><dt>x</dt>
<dd>SpatVector/sf/SpatRaster object to be intersected.</dd>
<dt>i</dt>
<dd>Dataset used to subset x.</dd>
<dt>j</dt>
<dd>Column indices or names.</dd>
<dt>y</dt>
<dd>SpatVector/sf object. Intersecting object.</dd></dl>

Arguments

Subset for nonidentical package class objects — indexing

<dl>

<dt>x</dt>
<dd>SpatVector/sf/SpatRaster object to be intersected.</dd>


<dt>i</dt>
<dd>Dataset used to subset x.</dd>


<dt>j</dt>
<dd>Column indices or names.</dd>


<dt>y</dt>
<dd>SpatVector/sf object. Intersecting object.</dd>

</dl>

Subset for nonidentical package class objects

indexing: Subset for nonidentical package class objects

Description

Usage

Arguments