Package: viewscape
Type: Package
Title: Viewscape Analysis
Version: 3.0.0
Authors@R: c(person("Xiaohao", "Yang", role = c("aut", "cre", "cph"), email = "xiaohaoy111@gmail.com"),
           person("Nathan", "Fox", role = c("aut")),
           person("Derek", "Van Berkel", role = c("aut")),
           person("Mark", "Lindquist", role = c("aut")))
Description: Provides tools for viewscape analysis from one or multiple viewpoints
    using a digital surface or elevation model. Core functionality includes computing
    viewsheds, quantifying visual magnitude, calculating a suite of viewscape
    configuration metrics (extent, depth, relief, Sky View Factor, skyline variation,
    and patch-based landscape structure), Shannon Diversity Index and land cover feature
    proportions within the visible area, pairwise intervisibility networks, panoramic
    view generation, and visualizing results as rasters or polygons. Viewscape
    configuration metrics follow the methods of Tabrizian et al. (2020)
    <doi:10.1016/j.landurbplan.2019.103704>. The viewshed algorithm is based on
    Franklin & Ray (1994) <https://api.semanticscholar.org/CorpusID:10680920>
    and Wang et al. (2000) <https://api.semanticscholar.org/CorpusID:131687018>.
    Visual magnitude is derived from Chamberlain & Meitner (2013)
    <doi:10.1016/j.landurbplan.2013.01.003>.
    Sky View Factor is computed following Oke (1981)
    <doi:10.1002/joc.3370010304> as implemented in the 'shadow' package
    (Dorman et al. 2019) <doi:10.32614/RJ-2019-024>.
URL: https://github.com/billbillbilly/viewscape
BugReports: https://github.com/billbillbilly/viewscape/issues
Depends: R (>= 4.2)
License: GPL-3
Encoding: UTF-8
RoxygenNote: 7.3.2
Suggests: testthat (>= 3.0.0), knitr, rmarkdown, greenSD, dsmSearch
Config/testthat/edition: 3
VignetteBuilder: knitr, rmarkdown
biocViews:
Imports: Rcpp, rlang, methods, dplyr, sf, sp, terra, ForestTools (>=
        1.0.1), parallel, pbmcapply
LinkingTo: Rcpp
NeedsCompilation: yes
Packaged: 2026-06-26 15:41:37 UTC; xiaohaoyang
Author: Xiaohao Yang [aut, cre, cph],
  Nathan Fox [aut],
  Derek Van Berkel [aut],
  Mark Lindquist [aut]
Maintainer: Xiaohao Yang <xiaohaoy111@gmail.com>
Repository: CRAN
Date/Publication: 2026-06-27 09:30:02 UTC
Built: R 4.7.0; x86_64-w64-mingw32; 2026-07-05 03:18:54 UTC; windows
Archs: x64
