OOFEM  2.4
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heavisidetimefunction.h
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34 
35 #ifndef heavisidetimefunction_h
36 #define heavisidetimefunction_h
37 
38 #include "floatarray.h"
39 #include "function.h"
40 
42 
43 #define _IFT_HeavisideTimeFunction_Name "heavisideltf"
44 #define _IFT_HeavisideTimeFunction_origin "origin"
45 #define _IFT_HeavisideTimeFunction_value "value"
46 
47 
48 namespace oofem {
59 class OOFEM_EXPORT HeavisideTimeFunction : public Function
60 {
61 private:
62  double origin, value;
63 
64 public:
66  {
67  origin = value = 0.;
68  }
69  virtual ~HeavisideTimeFunction() { }
70 
71  virtual IRResultType initializeFrom(InputRecord *ir);
72  virtual void giveInputRecord(DynamicInputRecord &input);
73  virtual const char *giveClassName() const { return "HeavisideTimeFunction"; }
74  virtual const char *giveInputRecordName() const { return _IFT_HeavisideTimeFunction_Name; }
75 
76  virtual double evaluateAtTime(double);
77  virtual double evaluateVelocityAtTime(double t) { return 0.; }
78  virtual double evaluateAccelerationAtTime(double t) { return 0.; }
79 };
80 } // end namespace oofem
81 #endif // heavisidetimefunction_h
virtual double evaluateVelocityAtTime(double t)
Returns the first time derivative of the function at given time.
Class and object Domain.
Definition: domain.h:115
virtual const char * giveInputRecordName() const
This class implements a Heaviside step load time function.
virtual const char * giveClassName() const
Abstract base class representing a function with vector input and output.
Definition: function.h:88
IRResultType
Type defining the return values of InputRecord reading operations.
Definition: irresulttype.h:47
Class representing the general Input Record.
Definition: inputrecord.h:101
Class representing the a dynamic Input Record.
virtual double evaluateAccelerationAtTime(double t)
Returns the second time derivative of the function at given time.
#define _IFT_HeavisideTimeFunction_Name
the oofem namespace is to define a context or scope in which all oofem names are defined.

This page is part of the OOFEM documentation. Copyright (c) 2011 Borek Patzak
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