XEUKLEIDES version 1.0.0 Copyright (c) Christian Obrecht 2000-2004 1. PURPOSE The language Eukleides is a Euclidean geometry drawing language. It has been designed in order to be close to the traditional language of Euclidean geometry. In many cases, it makes possible to completely avoid the use of Cartesian coordinates. The X-Window program `xeukleides' is a complete system for editing and viewing figures described in this language. The figures can be interactive, i.e., while viewing, it is possible to modify some numerical values using the keyboard. If you want to insert some geometric figures in a (La)TeX document or convert a figure in some vector graphic format (like EPS), you should also get the `eukleides' distribution. 2. LICENSE This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See file COPYING for more details. 3. INSTALL The software `xeukleides' has been developed on a GNU/Linux system. It should build on any system where `flex', `bison' and GTK+ 1.2 have been ported. Furthermore, you'll need `makeinfo' to format the documentation file, and/or Texinfo to get a hardcopy. As usual, type `make install'. Default installation directories are `/usr/local/bin', `/usr/local/man' and `/usr/local/info'. You'll have to edit the PREFIX macro in the Makefile to change this. To get a printable documentation file, type `make book'. Default paper format is A4. If you want to use letter paper instead, you'll have to edit the Makefile to set the PAPER macro empty. 4. DOCUMENTATION Once installed see man page for usage and info page for language description. The directory `samples/' contains a set of selected Eukleides source code files. These files are intended to demonstrate the interactive abilities of `xeukleides'. 5. NOTE The `eukleides' and `xeukleides' softwares were formerly named `euklides' and `xeuklides'. It had to be changed because there is already another program named `euklides'. 6. CONTACT Please send bug reports and comments at: .