Skip to content
TOPOLUMA

Features

Sun path analysis tool

TOPOLUMA draws the day's sun path over a 3D model of the site and its surroundings, in the site's own time zone, for any date.

What you get

Any date and time
Solstices and equinoxes are one click away; a slider moves from sunrise to sunset.
Real surroundings
Terrain, OpenStreetMap buildings, generated trees and bridges cast shadows.
Accurate positions
NOAA solar equations; times are worked out for the site's location.
Insolation sheet
One panel per date with the model, the compass ring and the sun path, as PDF, PNG, JPEG or SVG on A4 to A1.

How to do it

  1. Generate the preview.
  2. Open Sun and pick a date.
  3. Move through the day and orbit the model.
  4. Download the insolation sheet.

Limits to know

Building heights come from OpenStreetMap (or a default height when none is mapped), so shadows of individual buildings may differ from reality. More on the data and accuracy page.

Related