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.
Version: | 0.7.1 |
Depends: | R (≥ 3.5.0), sp (≥ 1.1.1) |
Imports: | rgeos (≥ 0.3), raster (≥ 2.4-15), methods, parallel (≥ 3.4.0) |
Suggests: | R.rsp, maptools (≥ 0.8), testthat, reshape2 (≥ 1.4.2), threejs, rgdal |
Published: | 2021-03-14 |
Author: | Michael Dorman [aut, cre], Evyatar Erell [ctb], Itai Kloog [ctb], Adi Vulkan [ctb], Roger Bivand [ctb] |
Maintainer: | Michael Dorman <dorman at post.bgu.ac.il> |
BugReports: | https://github.com/michaeldorman/shadow/issues/ |
License: | MIT + file LICENSE |
URL: | https://michaeldorman.github.io/shadow/, https://github.com/michaeldorman/shadow/ |
NeedsCompilation: | no |
Materials: | NEWS |
CRAN checks: | shadow results |
Reference manual: | shadow.pdf |
Vignettes: |
Introduction to the 'shadow' package |
Package source: | shadow_0.7.1.tar.gz |
Windows binaries: | r-devel: shadow_0.7.1.zip, r-release: shadow_0.7.1.zip, r-oldrel: shadow_0.7.1.zip |
macOS binaries: | r-release: shadow_0.7.1.tgz, r-oldrel: shadow_0.7.1.tgz |
Old sources: | shadow archive |
Please use the canonical form https://CRAN.R-project.org/package=shadow to link to this page.