Circé France 4.2

Circé France, developed by IGN (the French National Institute of Geographic and Forest Information), is an official desktop application for precise coordinate and height transformations across metropolitan France. It converts between legacy French systems and modern reference frames using IGN’s authoritative algorithms and transformation grids, ensuring consistent, high‑accuracy results for professional surveying, mapping, and GIS workflows.

Key capabilities:

• Converts between NTF and RGF93 reference frames; supports Lambert zones (I–IV, II extended), Lambert‑93, conic conformal (CC) projections, geographic coordinates, UTM, and WGS84.
• Performs height transformations between ellipsoidal and orthometric heights using IGN geoid models.
• Handles single-point conversions and batch processing from text/CSV files.
• Lets users choose projections, datums, units, and transformation parameters with clear reporting of applied methods.
• Designed for metropolitan France; dedicated tools exist for French overseas territories.

Circé France is widely used by surveyors, engineers, cartographers, and GIS analysts who need reliable, standards‑compliant transformations aligned with French geodetic practices.

Circé France is developed by IGN and is used by 1 user of Software Informer. The most popular versions of this product among our users are: 4.0, 4.1 and 4.2. The name of the program executable file is Circe.exe.

You can check Travel Riddles Trip to France, IQUALIF France White, Astra Jigsaw France and UK and other related programs like Wings Over France at the "download" section.