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PDNMESH(1) PdnMesh Manual PDNMESH(1)
NAME
pdnmesh - A 2D finite element mesh generator and solver
SYNOPSIS
pdnmesh [options] [-i input file]
DESCRIPTION
pdnmesh is a 2D finite element problem solver. It generates the
Delaunay triangulation of an input point set and afterwards, it will
solve the problem. Apart from the points, the set of edges and the
boundaries should be specified in the input file.
This is a beta release. Most of the options can now be changed using
the GUI. So do not expect the command line options to work properly.
Please report bugs to pdnmesh-bugs@lists.sourceforge.net.
OUTPUT
The program can generate Encapsulated Postscript files of the mesh,
contours of potential and gradient and ASCII files of the mesh.
In text only mode, by default it will generate the mesh and contour
files. If a display is available, the program can also display its
results on the screen. It can display the equipotential contours as
well as the gradient.
OPTIONS
pdnmesh accepts the following options:
-h, -? Print help.
-V Print the currently installed version of pdnmesh on the
standard output.
-s Uses the sparse matrix solver instead of the full matrix solver
(for Poisson Equation only).
-a VALUE
Sets the minimum area of a triangle to be split to VALUE The
area is taken with respect to local coordinates, NOT the input
coordinates. The local coordinate system is enclosed in a 2 by
2 square centered at origin.
-A VALUE
Sets the maximum area of a triangle to be split to VALUE The
area is taken with respect to local coordinates, NOT the input
coordinates. The local coordinate system is enclosed in a 2 by
2 square centered at origin.
-c VALUE
Sets the number of contour lines drawn to VALUE an integer.
-i FILE Reads the input file given by FILE which should be in the
correct format given by pdnmesh_input(5).
-d (contour|grad|fill)
By default displays either the contour plot, gradient plot or
colour fill.
-e (poisson|helmholtz|helmin|helmk|helmbeta)
Selects the solver to use.
poisson : Poisson Equation.
helmholtz : Homogeneous Helmholtz Equation.
helmin : Inhomogeneous Helmholtz Equation (using edge elements).
helmk : Find cutoff frequency given propagation constant.
helmbeta : Find propagation constant given cutoff frequency.
-v Print verbose output.
-nx Do not open graphical display. This is used when the program is
run in text mode.
SEE ALSO
pdnmesh_input(5)
COPYRIGHT
Copyright (C) 2001-2005 Sarod Yatawatta
Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted,
provided that the above copyright notice appear in all copies and that
both copyright notice and this permission notice appear in supporting
documentation.
Version 0.2.2 2005 April PDNMESH(1)