nbrToCell.C
Go to the documentation of this file.
1 /*---------------------------------------------------------------------------*\
2  ========= |
3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration |
5  \\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
6  \\/ M anipulation |
7 -------------------------------------------------------------------------------
8 License
9  This file is part of OpenFOAM.
10 
11  OpenFOAM is free software: you can redistribute it and/or modify it
12  under the terms of the GNU General Public License as published by
13  the Free Software Foundation, either version 3 of the License, or
14  (at your option) any later version.
15 
16  OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19  for more details.
20 
21  You should have received a copy of the GNU General Public License
22  along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
23 
24 \*---------------------------------------------------------------------------*/
25 
26 #include "nbrToCell.H"
27 #include "polyMesh.H"
28 
30 
31 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
32 
33 namespace Foam
34 {
35 
36 defineTypeNameAndDebug(nbrToCell, 0);
37 
38 addToRunTimeSelectionTable(topoSetSource, nbrToCell, word);
39 
40 addToRunTimeSelectionTable(topoSetSource, nbrToCell, istream);
41 
42 }
43 
44 
45 Foam::topoSetSource::addToUsageTable Foam::nbrToCell::usage_
46 (
47  nbrToCell::typeName,
48  "\n Usage: nbrToCell <nNeighbours>\n\n"
49  " Select all cells with <= nNeighbours neighbouring cells\n\n"
50 );
51 
52 
53 // * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
54 
55 void Foam::nbrToCell::combine(topoSet& set, const bool add) const
56 {
57  const cellList& cells = mesh().cells();
58  const polyBoundaryMesh& patches = mesh_.boundaryMesh();
59 
60  boolList isCoupled(mesh_.nFaces()-mesh_.nInternalFaces(), false);
61 
62  forAll(patches, patchi)
63  {
64  const polyPatch& pp = patches[patchi];
65 
66  if (pp.coupled())
67  {
68  label facei = pp.start();
69  forAll(pp, i)
70  {
71  isCoupled[facei-mesh_.nInternalFaces()] = true;
72  facei++;
73  }
74  }
75  }
76 
77  forAll(cells, celli)
78  {
79  const cell& cFaces = cells[celli];
80 
81  label nNbrCells = 0;
82 
83  forAll(cFaces, i)
84  {
85  label facei = cFaces[i];
86 
87  if (mesh_.isInternalFace(facei))
88  {
89  nNbrCells++;
90  }
91  else if (isCoupled[facei-mesh_.nInternalFaces()])
92  {
93  nNbrCells++;
94  }
95  }
96 
97  if (nNbrCells <= minNbrs_)
98  {
99  addOrDelete(set, celli, add);
100  }
101  }
102 }
103 
104 
105 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
106 
107 // Construct from components
109 (
110  const polyMesh& mesh,
111  const label minNbrs
112 )
113 :
114  topoSetSource(mesh),
115  minNbrs_(minNbrs)
116 {}
117 
118 
119 // Construct from dictionary
121 (
122  const polyMesh& mesh,
123  const dictionary& dict
124 )
125 :
126  topoSetSource(mesh),
127  minNbrs_(readLabel(dict.lookup("neighbours")))
128 {}
129 
130 
131 // Construct from Istream
133 (
134  const polyMesh& mesh,
135  Istream& is
136 )
137 :
138  topoSetSource(mesh),
139  minNbrs_(readLabel(checkIs(is)))
140 {}
141 
142 
143 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
144 
146 {}
147 
148 
149 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
150 
152 (
153  const topoSetSource::setAction action,
154  topoSet& set
155 ) const
156 {
157  if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
158  {
159  Info<< " Adding cells with only " << minNbrs_ << " or less"
160  " neighbouring cells" << " ..." << endl;
161 
162  combine(set, true);
163  }
164  else if (action == topoSetSource::DELETE)
165  {
166  Info<< " Removing cells with only " << minNbrs_ << " or less"
167  " neighbouring cells" << " ..." << endl;
168 
169  combine(set, false);
170  }
171 }
172 
173 
174 // ************************************************************************* //
#define forAll(list, i)
Loop across all elements in list.
Definition: UList.H:428
intWM_LABEL_SIZE_t label
A label is an int32_t or int64_t as specified by the pre-processor macro WM_LABEL_SIZE.
Definition: label.H:59
A list of keyword definitions, which are a keyword followed by any number of values (e...
Definition: dictionary.H:137
virtual ~nbrToCell()
Destructor.
Definition: nbrToCell.C:145
An Istream is an abstract base class for all input systems (streams, files, token lists etc)...
Definition: Istream.H:57
Ostream & endl(Ostream &os)
Add newline and flush stream.
Definition: Ostream.H:253
const cellList & cells() const
AccessType combine(const List< T > &, AccessOp aop=accessOp< T >())
Combines sublists into one big list.
Definition: ListListOps.C:34
Macros for easy insertion into run-time selection tables.
Base class of a source for a topoSet.
Definition: topoSetSource.H:63
List< bool > boolList
Bool container classes.
Definition: boolList.H:50
dynamicFvMesh & mesh
setAction
Enumeration defining the valid actions.
Definition: topoSetSource.H:82
label readLabel(Istream &is)
Definition: label.H:64
addToRunTimeSelectionTable(ensightPart, ensightPartCells, istream)
defineTypeNameAndDebug(combustionModel, 0)
General set of labels of mesh quantity (points, cells, faces).
Definition: topoSet.H:61
label patchi
Class with constructor to add usage string to table.
nbrToCell(const polyMesh &mesh, const label minNbrs)
Construct from components.
Definition: nbrToCell.C:109
messageStream Info
Mesh consisting of general polyhedral cells.
Definition: polyMesh.H:74
virtual void applyToSet(const topoSetSource::setAction action, topoSet &) const
Definition: nbrToCell.C:152
List< cell > cellList
list of cells
Definition: cellList.H:42
Namespace for OpenFOAM.
ITstream & lookup(const word &, bool recursive=false, bool patternMatch=true) const
Find and return an entry data stream.
Definition: dictionary.C:576