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 |
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