Shadows (software)

Shadows is a software package for the calculation and drawing of sundials and astrolabes, available as a freeware in its base level.

It draws the sundial on screen and prints it to various scales to act as a template during fabrication.

The results can be copied as an image or a vector graphics (metafile or DXF) for use in CAD programs or machine tools.

In 2005, the French astronomical society, Société Astronomique de France (SAF) awarded Blateyron with the Julien Saget prize for the Shadows software.

[3] The Astrolabes are interactive and can be manipulated on screen by rotating the Rete and the Alidade using the mouse.