shadow (0.4.0)

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Geometric Shadow Calculations.

http://cran.r-project.org/web/packages/shadow

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, and constructing the footprint of a line of sight between an observer and the sun.

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, plyr, testthat, knitr, rmarkdown, bookdown

Released 13 days ago.


6 previous versions

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