CRAN/E | shadow

shadow

Geometric Shadow Calculations

Installation

About

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.

michaeldorman.github.io/shadow/
github.com/michaeldorman/shadow/
Bug report File report

Key Metrics

Version 0.7.1
R ≥ 3.5.0
Published 2021-03-14 1301 days ago
Needs compilation? no
License MIT
License File
CRAN checks shadow results

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Maintainer

Maintainer

Michael Dorman

Authors

Michael Dorman

aut / cre

Evyatar Erell

ctb

Itai Kloog

ctb

Adi Vulkan

ctb

Roger Bivand

ctb

Material

NEWS
Reference manual
Package source

Vignettes

Introduction to the 'shadow' package

macOS

r-release

arm64

r-oldrel

arm64

r-release

x86_64

r-oldrel

x86_64

Windows

r-devel

x86_64

r-release

x86_64

r-oldrel

x86_64

Old Sources

shadow archive

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