9 kseg

9.1 Installation

kseg http://www.mit.edu/~ibaran/kseg.html is a Free (GPL) interactive geometry program for exploring Euclidean geometry. It runs on Unix-based platforms (according to users, it also compiles and runs on Mac OS X and should run on anything that Qt supports). By popular demand, despite my dislike for microsoft, I've ported KSEG to windows using the old Qt noncommercial version 2.3 (I hope I'm not violating anything). The source is uglier and there are some bugs not in the Linux version. Download the whole thing at http://www.mit.edu/~ibaran/kseg-0.401.zip (it should run out of the box).

1. Start by downloading all the following stuff :
   1. The window$ stuff, at /opt/kseg.
   2. The linux sources, at /home/distrib/extra/kseg-0-403 from http://www.mit.edu/~ibaran/kseg-0.403.tar.gz.
   3. All the *.rpm you can find (from $SuSE-10.3$, $SuSE-11.0$, $SuSE-11.1$). They have to be in different directories in order to be seen in YaST2.
2. v0.403 create /usr/share/kseg and use it to store locale and pics. Create it if it doent exists. Copy the examples from /usr/share/doc/packages/kseg/.
3. Create the pif files

1. You can draw, save and reopen. An user preference file is created at /.kseg.
2. The About message for 0.403.206 is v0.403 1999-2006 and ls is 1028416, the About message for the $SuSE-10.3$ is v0.4 1999-203 and ls is 969032.

• Used with $SuSE-11.0$ on a x86_64 computer, all three rpm (and also the i586 one) are producing the same bug. Copy a construction (e.g. circumcircle) from /usr/share/doc/packages/kseg/examples to your private space. This construction requires three inputs and remains grayed in the play list until the required paraleter are selected. Then open circumcirle.sec, and save it with another name (say toto.sec). Then file toto.sec is buggy. You can play toto as required as long as it remains in memory. If you close it, the file becomes the eventual source and is now greyed when 3 points are provided. But this macro is active with no parameters... and clashes everything. Trying to reopen toto.sec from the disk crashes either.
• When loading the frenchouilling-file, one gets the message : "Vous devez red$\clubsuit$arrer KSEG afin que le changement de langue face effet". In fact, $\clubsuit$ is the blackdiamond with question mark, showing some encoding problem. On the other hand, face is farce : if you are that sure that everything should be franchouilled, do it the right way... or better keep sleeping.
• When trying to compile from sources, /usr/lib/qt3/bin/qmake works ok, but make results in an ugly list of errors (=aka resigns).

9.2 wine-kseg

1. Create, somewhere in the path an executable file kseg-win (e.g. /usr/bin/kseg-win), containing  
   wine /opt/kseg/KSEG.exe $*
2. The About message is v0.401 1999-2004.
3. You can open and save constructions without trouble.
4. The idea of using kseg that way comes from http://archive.ncsa.uiuc.edu/Classes/MATH198/whubbard/303/project2/KSEG_handout.html.