Have you ever tried to build a sundial? This program lets you choose among many different types of sundial, does the calculations and prints the plans according to the size you specify.
Available in three versions (the first is freeware, the other two require you to buy a license to unlock certain functions).
Shadows is the basic level and is freeware. It can be used by everyone for personal needs or commercial activity. It comes with a complete set of functions and a full documentation.
Shadows Expert is made for people already knowing the basics of sundial design and willing to extend their knowledge to more complicated sundial types. This level provides extended features. It requires the user to buy a Shadows Expert license (click on Order in the navigation bar).
Shadows Pro is the most advanced level and is made for professional sundial makers and power users. It requires the user to buy a Shadows Pro license (click on Order in the navigation bar).
Note: Fully documented in French, English and Italian alone.