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GEL README, Andreas Bærentzen, February 2006.
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GEL README, Andreas Bærentzen, February 2006.
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==========
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==========
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This README describes the GEL project. GEL stands for Geometry and Linear
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This README describes the GEL project. GEL stands for Geometry and Linear
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Algebra which are the constituents we will mostly put into this library.
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Algebra which are the constituents we will mostly put into this library. It is
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intended as a library for computer graphics and computer vision tasks with a
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strong emphasis on the handling of shape and geometry.
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There are a good many tools for computational geometry processing: A
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GEL is broken down into a number of libraries, and the overall structure is as
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follows:
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- CGLA is a library targeted at vectors and matrices of dimensions 2,3, and
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4. CGLA is useful in computer graphics where small efficient vectors are
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everywhere.
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voxel grid and a simple triangle mesh data structure. There is also halfedge
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- LinAlg is a very simple Lapack wrapper which simplifies solving (large)
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linear systems.
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based polygonal mesh data structure called HMesh. There is a very
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- Geometry contains (mostly) Spatial data structures. There are voxel grid
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useful data structure known as a k-D tree and many other things.
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class templates and a K-D tree template. There is also a triangle mesh class
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useful for real time rendering.
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Also found are two packages for linear algebra: CGLA is strictly for
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- HMesh is a half edge based polygonal mesh data structure. This is useful for
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algorithms which change mesh connectivity.
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small vectors and matrices. LinAlg is a Lapack wrapper for slightly
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- GLGraphics contains Tools for visualization. There is a trackball and some
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larger problems. At this point, it is fairly simple.
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other OpenGL compatible tools.
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Finally there are some utilities in Util: Getting command line
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- Util contains various utilities such as hash table classes, a tool for
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arguments, hash table classes, a 2D grid class, a resource manager and
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command line arguments, a 2D grid class, a resource manager and other
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other miscellany.
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miscellany.
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GEL is intended for use both under a variety of unix platforms (Linux
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GEL is intended for use both under a variety of unix platforms (Linux
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and OSX in particular) and under windows. This README is mostly for
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and OSX in particular) and under windows. This README is mostly for
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unix users. Windows users should also consult README_MSVC
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unix users. Windows users should also consult README_MSVC
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