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Project Description

ELLIPT2D: a general purpose 2-D finite element solver
=====================================================


A. Pletzer and J.C. Mollis (pletzer@pppl.gov)

Version: 1.4 Wed Jun 25 15:18:19 EDT 2003


Prerequisites:

- Python 2.2 or later
- Tkinter
- A C/C++ compiler (except for .exe Windows installer)
- jython with Java/Java3D (optional)


1. Summary
----------

ELLIPT2D is a Python programming environment for solving 2-D elliptic equations
of the form - div F . grad v + g v = s where F=((fxx,fxy),(fyx,fyy)), g and s
are user supplied, possibly complex, functions. Boundary conditions can be of
Dirichlet (v=B), Neumann (n . F . grad v = B) or Robbins type
(n . F . grad v + A v = B). The trial basis functions are linear over
triangles with full support for unstructured meshes.

2. Installation and settings
----------------------------


2.1 Minimal installation
........................

ELLIPT2D is a collection of python scripts. Python must be installed on your
platform with Tkinter activated. Python is free and can be obtained at
http://www.python.org. Check the installations to find out how to activate
Tkinter (python is automatically distributed with Tkinter on Win32).
Note that if you have to compile shared libraries (see 2.3) then you will
also need the Python source distribution (i.e. have access to Python.h and
other headers).

The scripts can be accessed anywhere provided the PYTHONPATH environment
variable is properly set (see below). Alternatively, you can move the scripts
by hand to /usr/local/lib/python2.2/site-packages, or equivalent. Under
Windows the installation directory is often C:\Python22\Lib\site-packages.


2.2 Triangulation and fast solver
.................................

Type

python setup.py install

This will also build shared objects (dll on Windows) of

- triangle: A robust triangulation routine from
http://www.cs.cmu.edu/~quake/triangle.html


- superlu: A linear sparse matrix solver from http://www.nersc.gov/~xiaoye/SuperLU/



3. Tests
--------

Type the following command (under UNIX or Cygwin)

test.sh

This will exercize all the scripts.

4. Graphics
-----------

Simple Tk graphics routines are provided. For high quality visualization,
download openDX from http://www.opendx.org, which is also free, as Ellipt2d
generates results in the DX format. As an alternative, Ellipt2d also
generates output in the UCD format of Avs/Express (http://www.avs.com).
Avs/Express is a commercial product.


5. User guide
-------------

All ellipt2d classes and functions are documented in HTMLdoc. To check the
content of a python file, run doc.py [-a] <file>.py.

Examples of ELLIPT2D scripts can be found under Demos.

Enjoy,

Alex.




Release History

Release History

3.0.1

This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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1.9

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TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
ellipt2d-3.0.1.tar.gz (925.7 kB) Copy SHA256 Checksum SHA256 Source Feb 28, 2014
ellipt2d-3.0.1.zip (1.1 MB) Copy SHA256 Checksum SHA256 Source Feb 28, 2014

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