shadow (0.4.5)

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Geometric Shadow Calculations.

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.

Maintainer: Michael Dorman
Author(s): Michael Dorman [aut, cre], Evyatar Erell [ctb], Itai Kloog [ctb], Adi Vulkan [ctb]

License: MIT + file LICENSE

Uses: raster, rgeos, sp, maptools, rgdal, plyr, testthat, reshape2, knitr, rmarkdown, threejs, bookdown

Released 15 days ago.

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