boston_sidewalk

<p>A <code>SpatialLinesDataFrame</code> object representing sidewalks in Central Boston.</p>

datasets

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.

Michael Dorman

shadow

Geometric Shadow Calculations

Evyatar Erell

Itai Kloog

Adi Vulkan

Roger Bivand

boston_sidewalk function

<p>A <code>SpatialLinesDataFrame</code> with 78 features.</p>

Format

Polygonal layer of sidewalks in Boston — boston_sidewalk

Polygonal layer of sidewalks in Boston

boston_sidewalk: Polygonal layer of sidewalks in Boston

Description

Usage

Arguments

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Examples