ramp Class Referenceabstract

Ramp function base class for the set of scalar functions starting from 0 and increasing monotonically to 1 from start over the duration and remaining at 1 thereafter. More...

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Public Member Functions

 ramp (const word &entryName, const dictionary &dict)
 Construct from entry name and dictionary. More...
 
virtual ~ramp ()
 Destructor. More...
 
virtual scalar value (const scalar t) const =0
 Return value for time t. More...
 
virtual void writeData (Ostream &os) const
 Write in dictionary format. More...
 
- Public Member Functions inherited from Function1< scalar >
 Function1 (const word &entryName)
 Construct from entry name. More...
 
 Function1 (const Function1< scalar > &f1)
 Copy constructor. More...
 
 TypeName ("Function1") declareRunTimeSelectionTable(autoPtr
 Runtime type information. More...
 
virtual tmp< Function1< scalar > > clone () const=0
 Construct and return a clone. More...
 
virtual ~Function1 ()=default
 Destructor. More...
 
const wordname () const
 Return the name of the entry. More...
 
virtual void convertTimeBase (const Time &t)
 Convert time. More...
 
virtual tmp< Field< scalar > > value (const scalarField &x) const
 Return value as a function of (scalar) independent variable. More...
 
virtual scalar integrate (const scalar x1, const scalar x2) const
 Integrate between two (scalar) values. More...
 
virtual tmp< Field< scalar > > integrate (const scalarField &x1, const scalarField &x2) const
 Integrate between two (scalar) values. More...
 

Protected Member Functions

scalar linearRamp (const scalar t) const
 Simple linear ramp function. More...
 

Protected Attributes

scalar start_
 Start-time of the ramp function. More...
 
scalar duration_
 Duration of the ramp function. More...
 
- Protected Attributes inherited from Function1< scalar >
const word name_
 Name of entry. More...
 

Additional Inherited Members

- Public Types inherited from Function1< scalar >
typedef scalar returnType
 
- Static Public Member Functions inherited from Function1< scalar >
static autoPtr< Function1< scalar > > New (const word &entryName, const dictionary &dict, const word &redirectType=word::null)
 Selector. More...
 
- Public Attributes inherited from Function1< scalar >
 Function1
 
 dictionary
 
const wordentryName
 
const word const dictionary entryName
 
const word const dictionarydict
 
const word const dictionary dict
 

Detailed Description

Ramp function base class for the set of scalar functions starting from 0 and increasing monotonically to 1 from start over the duration and remaining at 1 thereafter.

Usage:

    <entryName> <rampFunction>;
    <entryName>Coeffs
    {
        start     10;
        duration  20;
    }

or

    <entryName>
    {
        type      <rampFunction>;
        start     10;
        duration  20;
    }

Where:

Property Description Required Default value
start Start time no 0
duration Duration yes
See also
Foam::Function1
Source files

Definition at line 98 of file ramp.H.

Constructor & Destructor Documentation

◆ ramp()

ramp ( const word entryName,
const dictionary dict 
)

Construct from entry name and dictionary.

Definition at line 40 of file ramp.C.

References dict, and Foam::read().

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◆ ~ramp()

~ramp ( )
virtual

Destructor.

Definition at line 53 of file ramp.C.

Member Function Documentation

◆ linearRamp()

scalar linearRamp ( const scalar  t) const
inlineprotected

Simple linear ramp function.

which form the basis of many more complex ramp functions

Definition at line 114 of file ramp.H.

◆ value()

virtual scalar value ( const scalar  t) const
pure virtual

Return value for time t.

Reimplemented from Function1< scalar >.

Implemented in halfCosineRamp, linearRamp, quadraticRamp, quarterCosineRamp, and quarterSineRamp.

◆ writeData()

void writeData ( Ostream os) const
virtual

Write in dictionary format.

Reimplemented from Function1< scalar >.

Definition at line 59 of file ramp.C.

References Ostream::beginBlock(), token::END_STATEMENT, Ostream::endBlock(), Foam::name(), Foam::nl, Function1< Type >::writeData(), and Ostream::writeEntry().

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Member Data Documentation

◆ start_

scalar start_
protected

Start-time of the ramp function.

Definition at line 107 of file ramp.H.

◆ duration_

scalar duration_
protected

Duration of the ramp function.

Definition at line 110 of file ramp.H.


The documentation for this class was generated from the following files: