boston_build

A <code>SpatialPolygonsDataFrame</code> object representing the outlines of three buildings located in Central Boston. The attribute <code>height_m</code> contains building height, in meters.

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

boston_build function

A <code>SpatialPolygonsDataFrame</code> with 10 features and 4 attributes:<dl class="dl-horizontal">
 <dt>objectid</dt><dd>Building part ID</dd>
 <dt>build_id</dt><dd>Building ID</dd>
 <dt>part_floor</dt><dd>Number of floors for part</dd>
 <dt>height_m</dt><dd>Building height, in meters</dd>
</dl>

Format

Polygonal layer of three buildings in Boston — boston_build

A <code>SpatialPolygonsDataFrame</code> with 10 features and 4 attributes:<dl class='dl-horizontal'>
 <dt>objectid</dt><dd>Building part ID</dd>
 <dt>build_id</dt><dd>Building ID</dd>
 <dt>part_floor</dt><dd>Number of floors for part</dd>
 <dt>height_m</dt><dd>Building height, in meters</dd>
</dl>

boston_build: Polygonal layer of three buildings in Boston

Description

Usage

Arguments

Format