Square.C
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24 \*---------------------------------------------------------------------------*/
25 
26 #include "Square.H"
27 
28 // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
29 
30 template<class Type>
31 void Foam::Function1Types::Square<Type>::read(const dictionary& coeffs)
32 {
33  t0_ = coeffs.lookupOrDefault<scalar>("t0", 0);
34  markSpace_ = coeffs.lookupOrDefault<scalar>("markSpace", 1);
35  amplitude_ = Function1<scalar>::New("amplitude", coeffs);
36  frequency_ = Function1<scalar>::New("frequency", coeffs);
37  scale_ = Function1<Type>::New("scale", coeffs);
38  level_ = Function1<Type>::New("level", coeffs);
39 }
40 
41 
42 template<class Type>
44 (
45  const word& entryName,
46  const dictionary& dict,
47  const word& ext
48 )
49 :
50  Function1<Type>(entryName)
51 {
52  read(dict.subDict(entryName + ext));
53 }
54 
55 
56 template<class Type>
58 :
59  Function1<Type>(se),
60  t0_(se.t0_),
61  markSpace_(se.markSpace_),
62  amplitude_(se.amplitude_, false),
63  frequency_(se.frequency_, false),
64  scale_(se.scale_, false),
65  level_(se.level_, false)
66 {}
67 
68 
69 // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
70 
71 template<class Type>
73 {}
74 
75 
76 // * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
77 
78 template<class Type>
80 {
81  // Number of waves including fractions
82  scalar waves = frequency_->value(t)*(t - t0_);
83 
84  // Number of complete waves
85  scalar nWaves;
86 
87  // Fraction of last incomplete wave
88  scalar waveFrac = std::modf(waves, &nWaves);
89 
90  // Mark fraction of a wave
91  scalar markFrac = markSpace_/(1.0 + markSpace_);
92 
93  return
94  amplitude_->value(t)
95  *(waveFrac < markFrac ? 1 : -1)
96  *scale_->value(t)
97  + level_->value(t);
98 }
99 
100 
101 template<class Type>
103 {
105  os << token::END_STATEMENT << nl;
106  os << indent << word(this->name() + "Coeffs") << nl;
107  os << indent << token::BEGIN_BLOCK << incrIndent << nl;
108  os.writeKeyword("t0") << t0_ << token::END_STATEMENT << nl;
109  os.writeKeyword("markSpace") << markSpace_ << token::END_STATEMENT << nl;
110  amplitude_->writeData(os);
111  frequency_->writeData(os);
112  scale_->writeData(os);
113  level_->writeData(os);
114  os << decrIndent << indent << token::END_BLOCK << endl;
115 }
116 
117 
118 // ************************************************************************* //
Top level data entry class for use in dictionaries. Provides a mechanism to specify a variable as a c...
Definition: Function1.H:53
const word & name() const
Return the name of the entry.
Definition: Function1.C:56
Ostream & indent(Ostream &os)
Indent stream.
Definition: Ostream.H:223
Square(const word &entryName, const dictionary &dict, const word &ext="Coeffs")
Construct from entry name and dictionary.
Definition: Square.C:44
A list of keyword definitions, which are a keyword followed by any number of values (e...
Definition: dictionary.H:137
const dictionary & subDict(const word &) const
Find and return a sub-dictionary.
Definition: dictionary.C:633
Ostream & endl(Ostream &os)
Add newline and flush stream.
Definition: Ostream.H:253
virtual ~Square()
Destructor.
Definition: Square.C:72
virtual void writeData(Ostream &os) const
Write in dictionary format.
Definition: Function1.C:121
tmp< DimensionedField< TypeR, GeoMesh > > New(const tmp< DimensionedField< TypeR, GeoMesh >> &tdf1, const word &name, const dimensionSet &dimensions)
bool read(const char *, int32_t &)
Definition: int32IO.C:85
A class for handling words, derived from string.
Definition: word.H:59
virtual void writeData(Ostream &os) const
Write in dictionary format.
Definition: Square.C:102
An Ostream is an abstract base class for all output systems (streams, files, token lists...
Definition: Ostream.H:53
static const char nl
Definition: Ostream.H:262
Ostream & decrIndent(Ostream &os)
Decrement the indent level.
Definition: Ostream.H:237
Ostream & writeKeyword(const keyType &)
Write the keyword followed by an appropriate indentation.
Definition: Ostream.C:54
Type value(const scalar t) const
Return value for time t.
Definition: Square.C:79
Templated square-wave function with support for an offset level.
Definition: Square.H:142
Ostream & incrIndent(Ostream &os)
Increment the indent level.
Definition: Ostream.H:230