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shadow: Geometric Shadow Calculations
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.
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Package details |
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| 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> |
| License | MIT + file LICENSE |
| Version | 0.7.1 |
| URL | https://michaeldorman.github.io/shadow/ https://github.com/michaeldorman/shadow/ |
| Package repository | View on CRAN |
| Installation |
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