Package: shadow
Type: Package
Title: Geometric Shadow Calculations
Version: 0.7.1
Authors@R: c(
    person("Michael", "Dorman", email = "dorman@post.bgu.ac.il", role = c("aut", "cre")),
    person("Evyatar", "Erell", email = "erell@bgu.ac.il", role = c("ctb")),
    person("Itai", "Kloog", email = "ikloog@gmail.com", role = c("ctb")),
    person("Adi", "Vulkan", email = "vulkan@post.bgu.ac.il", role = c("ctb")),
    person("Roger", "Bivand", email = "roger.bivand@nhh.no", role = c("ctb")))
Description: Functions for calculating: (1) shadow height, (2) logical shadow flag, (3) shadow footprint, (4) Sky View Factor and (5) radiation load. Basic required inputs include a polygonal layer of obstacle outlines along with their heights (i.e. "extruded polygons"), sun azimuth and sun elevation. The package also provides functions for related preliminary calculations: breaking polygons into line segments, determining azimuth of line segments, shifting segments by azimuth and distance, constructing the footprint of a line-of-sight between an observer and the sun, and creating a 3D grid covering the surface area of extruded polygons.
License: MIT + file LICENSE
LazyData: TRUE
Imports: rgeos (>= 0.3), raster (>= 2.4-15), methods, parallel (>=
        3.4.0)
Depends: R (>= 3.5.0), sp (>= 1.1.1)
RoxygenNote: 7.1.1
Suggests: R.rsp, maptools (>= 0.8), testthat, reshape2 (>= 1.4.2),
        threejs, rgdal
VignetteBuilder: R.rsp
URL: https://michaeldorman.github.io/shadow/,
        https://github.com/michaeldorman/shadow/
BugReports: https://github.com/michaeldorman/shadow/issues/
Encoding: UTF-8
NeedsCompilation: no
Packaged: 2021-03-14 08:05:32 UTC; michael
Author: Michael Dorman [aut, cre],
  Evyatar Erell [ctb],
  Itai Kloog [ctb],
  Adi Vulkan [ctb],
  Roger Bivand [ctb]
Maintainer: Michael Dorman <dorman@post.bgu.ac.il>
Repository: CRAN
Date/Publication: 2021-03-14 17:40:02 UTC
Built: R 4.2.3; ; 2023-06-21 01:59:29 UTC; windows
