From Free Software Directory
Jump to: navigation, search



Euclidean geometry simulator

KSEG is a GNU/Linux program for exploring Euclidean geometry. You create a construction, such as a triangle with a circumcenter, and as you drag verteces of the triangle, the circumcenter moves in real time. Other features include:

  • Fast core which supports large constructions
  • Supports multiple languages
  • Construction of points, segments, rays, lines, circles, and arcs
  • Make measurements
  • Transformations (rotation, translation, scaling, reflection)
  • Construction of adaptively sampled loci for better quality and speed
  • Reverse dragging
  • Infinite undo/redo
  • Ability to easily redefine points to "edit" drawings
  • Editable scripting/macro with support for recursion
  • Pretty formulas for calculations-with libkformula
  • Small files
  • Quick play--one step to play any construction from a directory
  • Calculation based transformations
  • Improved selection-to-given matching in constructions



Verified by

Verified on




Verified by

Janet Casey

Verified on

12 June 2001

Leaders and contributors

Ilya Baran Maintainer
Jorge Barros de Abreu Contributor

Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,SupportE-mailmailto:ibaran@mit.edu

Software prerequisites

Required to useQt 3.x or later


Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.