FreeFOAM The Cross-Platform CFD Toolkit
cylinderAnnulusToCell.C
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1 /*---------------------------------------------------------------------------*\
2  ========= |
3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration |
5  \\ / A nd | Copyright (C) 2011-2011 OpenCFD Ltd.
6  \\/ M anipulation |
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25 
26 #include "cylinderAnnulusToCell.H"
27 #include <OpenFOAM/polyMesh.H>
29 
30 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
31 
32 namespace Foam
33 {
34  defineTypeNameAndDebug(cylinderAnnulusToCell, 0);
35  addToRunTimeSelectionTable(topoSetSource, cylinderAnnulusToCell, word);
36  addToRunTimeSelectionTable(topoSetSource, cylinderAnnulusToCell, istream);
37 }
38 
39 
40 Foam::topoSetSource::addToUsageTable Foam::cylinderAnnulusToCell::usage_
41 (
42  cylinderAnnulusToCell::typeName,
43  "\n Usage: cylinderAnnulusToCell (p1X p1Y p1Z) (p2X p2Y p2Z)"
44  " outerRadius innerRadius\n\n"
45  " Select all cells with cell centre within bounding cylinder annulus\n\n"
46 );
47 
48 
49 // * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
50 
51 void Foam::cylinderAnnulusToCell::combine(topoSet& set, const bool add) const
52 {
53  const vector axis = p2_ - p1_;
54  const scalar orad2 = sqr(outerRadius_);
55  const scalar irad2 = sqr(innerRadius_);
56  const scalar magAxis2 = magSqr(axis);
57 
58  const pointField& ctrs = mesh_.cellCentres();
59 
60  forAll(ctrs, cellI)
61  {
62  vector d = ctrs[cellI] - p1_;
63  scalar magD = d & axis;
64 
65  if ((magD > 0) && (magD < magAxis2))
66  {
67  scalar d2 = (d & d) - sqr(magD)/magAxis2;
68  if ((d2 < orad2) && (d2 > irad2))
69  {
70  addOrDelete(set, cellI, add);
71  }
72  }
73  }
74 }
75 
76 
77 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
78 
80 (
81  const polyMesh& mesh,
82  const vector& p1,
83  const vector& p2,
84  const scalar outerRadius,
85  const scalar innerRadius
86 )
87 :
88  topoSetSource(mesh),
89  p1_(p1),
90  p2_(p2),
91  outerRadius_(outerRadius),
92  innerRadius_(innerRadius)
93 {}
94 
95 
97 (
98  const polyMesh& mesh,
99  const dictionary& dict
100 )
101 :
102  topoSetSource(mesh),
103  p1_(dict.lookup("p1")),
104  p2_(dict.lookup("p2")),
105  outerRadius_(readScalar(dict.lookup("outerRadius"))),
106  innerRadius_(readScalar(dict.lookup("innerRadius")))
107 {}
108 
109 
110 // Construct from Istream
112 (
113  const polyMesh& mesh,
114  Istream& is
115 )
116 :
117  topoSetSource(mesh),
118  p1_(checkIs(is)),
119  p2_(checkIs(is)),
120  outerRadius_(readScalar(checkIs(is))),
121  innerRadius_(readScalar(checkIs(is)))
122 {}
123 
124 
125 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
126 
128 {}
129 
130 
131 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
132 
134 (
135  const topoSetSource::setAction action,
136  topoSet& set
137 ) const
138 {
139  if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
140  {
141  Info<< " Adding cells with centre within cylinder annulus,"
142  << " with p1 = "
143  << p1_ << ", p2 = " << p2_ << " and outer radius = " << outerRadius_
144  << " and inner radius = " << innerRadius_
145  << endl;
146 
147  combine(set, true);
148  }
149  else if (action == topoSetSource::DELETE)
150  {
151  Info<< " Removing cells with centre within cylinder, with p1 = "
152  << p1_ << ", p2 = " << p2_ << " and outer radius = " << outerRadius_
153  << " and inner radius " << innerRadius_
154  << endl;
155 
156  combine(set, false);
157  }
158 }
159 
160 
161 // ************************ vim: set sw=4 sts=4 et: ************************ //