Projects / Dr Geo

Dr Geo

Dr. Geo is an interactive geometry program that is distributed as a universal portable application. It allows one to create a geometric sketch and manipulate it according to its constraints. It is usable at home or at school, in primary or secondary education. It is simple and effective with extended features including scripting and programming.

Operating Systems

RSS Recent releases

  •  27 Sep 2013 22:41

    Release Notes: New features: Cloning a circle defined by its radius; creating a circle by center and segment. Bugfixes: keeping a sketch on network may not have worked; an error when submitting an empty share name; an error when deleting an item constructed by a macro; an error when saving silently a remote sketch; network shares only working from France; and segment width not being properly saved or loaded.

    •  08 Jun 2013 19:54

      Release Notes: This release adds new features (nice string representations for math items, a side bar with the object hierarchy, an animate button, saving a sketch anywhere on the harddisk) and bugfixes (locus sampling sub-optimal at the extremities, low quality of the sketch preview, only bitmaps could be dropped on a Dr. geo canvas, griding not correct when a magnet was activated, naming a point on the fly, and a flickering status bar (Android)).

      •  04 Apr 2013 00:25

      Release Notes: This release adds bitmap image integration, limits on imported bitmaps to a given size, transformation on locus, clone items, grids with x-axis and y-axis, regular polygons, point on polygons, menu with a macro list, merge points, and a transparent popup menu.

      •  13 Jan 2013 18:20

        Release Notes: New features: the ability to share sketches over the network; a background for text; duplicate screen area under finger; highlighting items when browsing in a pop-up; and descriptive names for several items. Bugfixes: message #arctTan2 is sent to Integer; in eraser mode, there was no smart point selection; long hints were cut off on the status bar; the flying costume was not updated when the canvas moved; enlarge point sensibility zone; invisible items selectable; and pressure sensitive stylus and arc creation.

        •  16 Sep 2012 17:45

        Release Notes: A new user interface to lay out the construction tools. New tools: arc defined by its center, angle and segment bisectors, coordinates. Various refactoring and user interface improvements. Bugfixes. Android and iPad versions.


        Project Spotlight


        A multi-core programming framework.


        Project Spotlight


        A Hibernate session and transaction manager.