shadow

shadow-package


Functions for calculating:<ul>
<li>Shade height at a single point
</li>
<li>Shaded proportion of a building facade
</li>
<li>A polygonal layer of shade footprints on the ground
</li>
<li>Sky View Factor (SVF) value at a single point
</li>
</ul><p></p><p>Typical inputs include a polygonal layer of buildings outline along with the height of each building, sun azimuth and sun elevation. The package also provides functions for related preliminary calculations: converting polygons to 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.
</p>

Functions for calculating (1) shade height at a single point, (2) shaded proportion of a building facade; (3) a polygonal layer of shade footprints on the ground; and (4) Sky View Factor value at a single point. Typical inputs include a polygonal layer of buildings outline along with the height of each building, sun azimuth and sun elevation. The package also provides functions for related preliminary calculations: converting polygons to 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.

Michael Dorman

R Package for Geometric Shade Calculations

shadow function


Functions for calculating:<ul>
<li>Shade height at a single point
</li>
<li>Shaded proportion of a building facade
</li>
<li>A polygonal layer of shade footprints on the ground
</li>
<li>Sky View Factor (SVF) value at a single point
</li>
</ul>

Typical inputs include a polygonal layer of buildings outline along with the height of each building, sun azimuth and sun elevation. The package also provides functions for related preliminary calculations: converting polygons to 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.


shadow: `shadow`: R Package for Geometric Shade Calculations

Description

Arguments