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.

Documentation

Manual: shadow.pdf
Vignette: Introduction to package `shadow`

Maintainer: Michael Dorman <dorman at post.bgu.ac.il>

Author(s): Michael Dorman*, Evyatar Erell*, Itai Kloog*, Adi Vulkan*

Install package and any missing dependencies by running this line in your R console:

install.packages("shadow")

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)
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Package shadow
Materials
URL
Task Views
Version 0.3.3
Published 2017-06-14
License MIT + file LICENSE
BugReports
SystemRequirements
NeedsCompilation no
Citation
CRAN checks shadow check results
Package source shadow_0.3.3.tar.gz