Subversion Repositories gelsvn

GEL README, Andreas Bærentzen, February 2006.

==========

Algebra which are the constituents we will mostly put into this library.

voxel grid and a simple triangle mesh data structure. There is also a

more advanced triangle mesh data structure called IMesh and a halfedge

based polygonal mesh data structure called HMesh. There is a very

useful data structure known as a k-D tree and many other things. 

small vectors and matrices. LinAlg is a Lapack wrapper for slightly

larger problems. At this point, it is fairly simple. 

arguments, hash table classes, a 2D grid class, a resource manager and

other miscellany. 

GEL is intended for use both under a  variety of unix platforms (Linux

Dependencies: GEL depends on the Developers Image Library DevIL,

Lapack, and OpenGL and GLUT. However, most of GEL does not require

these dependencies. In particular, you do not need DevIL except if you

want the OBJ viewer example program.

Who made GEL

==========

GEL is mostly the work of Andreas Bærentzen, but other people

contribute. In particular, Jeppe Frisvad, Bjarke Jakobsen, Henrik

Aanæs, and Bent D. Larsen. We are all from Informatics and

Mathematical Modelling, a department of the Technical University of

Denmark. 

Regarding LICENSE.

==========

I was considering putting GEL under the LGPL. But it is a long complex

text. The longer any kind of document, the more chances for loopholes

in my opinion. Instead, I list a few simple rules below. The most

important one is that if you want to use GEL for some purpose, and it

is not crystal clear whether it is against the rules, contact me. As

for the rules:

You are allowed to use GEL for academic or commercial purposes. In

particular, you are welcome to give GEL to students as a basis for 

academic work or to use it for your own applications.

The biggest limitation that I want to impose is that you cannot repackage

GEL in any way. You are not allowed to distribute another library which

contains GEL or parts of GEL unless you make it clear that this other

library contains GEL. You are also not allowed to redistribute GEL in a

changed form. If you want changes to be made, contact me.

Of course, neither I nor my employer will give you any money or be

held responsible in any way, under any circumstances what so ever - no

matter what sort of damage GEL might inflict upon you. Not that I can

foresee GEL causing you any damage :-) 

If anything is unclear, please contact me. In fact, if you want to use

GEL for a bigger project, I'd appreciate an email to jab@imm.dtu.dk

building upon fragments of other peoples source code. GEL includes an

obj loader based on work by Nate Robins. Some pieces of source code

from Graphics Gems have also been used. All of this amounts to only a

small fraction of the GEL source code and it should not be in

violation of any license. Should you disagree, contact me, and I will

rectify the situation.