Functions for calculating (1) shadow heights; (2) shadow footprint on ground polygons; and (3) Sky View Factor values. Inputs include a polygonal layer of obstacle outlines along with their heights, sun azimuth and sun elevation. The package also provides functions for related preliminary calculations: breaking polygons into line segments, finding segment azimuth, 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 surface area of extruded polygons.
| Version: | 0.4.5 |
| Depends: | R (≥ 3.2.3), sp (≥ 1.1.1) |
| Imports: | rgeos (≥ 0.3), raster (≥ 2.4-15), methods, parallel (≥ 3.4.0) |
| Suggests: | knitr, rmarkdown, bookdown, maptools (≥ 0.8), testthat, plyr (≥ 1.8.4), reshape2 (≥ 1.4.2), threejs, rgdal |
| Published: | 2018-01-04 |
| Author: | Michael Dorman [aut, cre], Evyatar Erell [ctb], Itai Kloog [ctb], Adi Vulkan [ctb] |
| Maintainer: | Michael Dorman <dorman at post.bgu.ac.il> |
| BugReports: | https://github.com/michaeldorman/shadow/issues |
| License: | MIT + file LICENSE |
| NeedsCompilation: | no |
| Materials: | NEWS |
| CRAN checks: | shadow results |
| Reference manual: | shadow.pdf |
| Vignettes: |
Introduction to package 'shadow' |
| Package source: | shadow_0.4.5.tar.gz |
| Windows binaries: | r-devel: shadow_0.4.5.zip, r-release: shadow_0.4.5.zip, r-oldrel: shadow_0.3.0.zip |
| OS X El Capitan binaries: | r-release: shadow_0.4.5.tgz |
| OS X Mavericks binaries: | r-oldrel: shadow_0.3.0.tgz |
| Old sources: | shadow archive |
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