/usr/share/octave/packages/bim-1.1.5/bim3c_unknowns_on_faces.m is in octave-bim 1.1.5-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 | ## Copyright (C) 2006,2007,2008,2009,2010 Carlo de Falco, Massimiliano Culpo
##
## This file is part of:
## BIM - Diffusion Advection Reaction PDE Solver
##
## BIM is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## BIM is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with BIM; If not, see <http://www.gnu.org/licenses/>.
##
## author: Carlo de Falco <cdf _AT_ users.sourceforge.net>
## author: Massimiliano Culpo <culpo _AT_ users.sourceforge.net>
## -*- texinfo -*-
## @deftypefn {Function File} {[@var{nodelist}]} = @
## bim3c_unknowns_on_faces(@var{mesh},@var{facelist})
##
## Return the list of the mesh nodes that lie on the geometrical faces
## specified in @var{facelist}.
##
## @seealso{bim3c_unknown_on_faces, bim2c_pde_gradient,
## bim2c_global_flux}
##
## @end deftypefn
function [nodelist] = bim3c_unknowns_on_faces(mesh,facelist)
## Check input
if nargin != 2
error("bim3c_unknowns_on_faces: wrong number of input parameters.");
elseif !(isstruct(mesh) && isfield(mesh,"p") &&
isfield (mesh,"t") && isfield(mesh,"e"))
error("bim3c_unknowns_on_faces: first input is not a valid mesh structure.");
elseif !isnumeric(facelist)
error("bim3c_unknowns_on_faces: second input is not a valid numeric vector.");
endif
[nodelist] = msh3m_nodes_on_faces(mesh,facelist);
endfunction
%!shared mesh
% x = y = z = linspace(0,1,2);
% [mesh] = msh3m_structured_mesh(x,y,z,1,1:6);
%!test
% assert( bim3c_unknowns_on_faces(mesh, 1),[1 2 5 6] )
%!test
% assert( bim3c_unknowns_on_faces(mesh, 2),[3 4 7 8] )
%!test
% assert( bim3c_unknowns_on_faces(mesh, [1 2]),1:8)
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