libvtk6-dev 6.1.0+dfsg2-6 / usr / include / vtk-6.1 / vtkInitialValueProblemSolver.h

This file is indexed.

/usr/include/vtk-6.1/vtkInitialValueProblemSolver.h is in libvtk6-dev 6.1.0+dfsg2-6.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkInitialValueProblemSolver.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
// .NAME vtkInitialValueProblemSolver - Integrate a set of ordinary
// differential equations (initial value problem) in time.

// .SECTION Description
// Given a vtkFunctionSet which returns dF_i(x_j, t)/dt given x_j and
// t, vtkInitialValueProblemSolver computes the value of F_i at t+deltat.

// .SECTION Warning
// vtkInitialValueProblemSolver and it's subclasses are not thread-safe.
// You should create a new integrator for each thread.

// .SECTION See Also
// vtkRungeKutta2 vtkRungeKutta4

#ifndef __vtkInitialValueProblemSolver_h
#define __vtkInitialValueProblemSolver_h

#include "vtkCommonMathModule.h" // For export macro
#include "vtkObject.h"

class vtkFunctionSet;

class VTKCOMMONMATH_EXPORT vtkInitialValueProblemSolver : public vtkObject
{
public:
  vtkTypeMacro(vtkInitialValueProblemSolver,vtkObject);
  virtual void PrintSelf(ostream& os, vtkIndent indent);

  // Description:
  // Given initial values, xprev , initial time, t and a requested time
  // interval, delT calculate values of x at t+delTActual (xnext).
  // For certain concrete sub-classes delTActual != delT. This occurs
  // when the solver supports adaptive stepsize control. If this
  // is the case, the solver tries to change to stepsize such that
  // the (estimated) error of the integration is less than maxError.
  // The solver will not set the stepsize smaller than minStep or
  // larger than maxStep.
  // Also note that delT is an in/out argument. Adaptive solvers
  // will modify delT to reflect the best (estimated) size for the next
  // integration step.
  // An estimated value for the error is returned (by reference) in error.
  // Note that only some concrete sub-classes support this. Otherwise,
  // the error is set to 0.
  // This method returns an error code representing the nature of
  // the failure:
  // OutOfDomain = 1,
  // NotInitialized = 2,
  // UnexpectedValue = 3
  virtual int ComputeNextStep(double* xprev, double* xnext, double t,
                              double& delT, double maxError,
                              double& error)
    {
      double minStep = delT;
      double maxStep = delT;
      double delTActual;
      return this->ComputeNextStep(xprev, 0, xnext, t, delT, delTActual,
                                   minStep, maxStep, maxError, error);
    }
  virtual int ComputeNextStep(double* xprev, double* dxprev, double* xnext,
                              double t, double& delT, double maxError,
                              double& error)
    {
      double minStep = delT;
      double maxStep = delT;
      double delTActual;
      return this->ComputeNextStep(xprev, dxprev, xnext, t, delT, delTActual,
                                   minStep, maxStep, maxError, error);
    }
  virtual int ComputeNextStep(double* xprev, double* xnext,
                              double t, double& delT, double& delTActual,
                              double minStep, double maxStep,
                              double maxError, double& error)
    {
      return this->ComputeNextStep(xprev, 0, xnext, t, delT, delTActual,
                                   minStep, maxStep, maxError, error);
    }
  virtual int ComputeNextStep(double* xprev, double* dxprev, double* xnext,
                              double t, double& delT, double& delTActual,
                              double minStep, double maxStep,
                              double maxError, double& error) = 0;

  // Description:
  // Set / get the dataset used for the implicit function evaluation.
  virtual void SetFunctionSet(vtkFunctionSet* functionset);
  vtkGetObjectMacro(FunctionSet,vtkFunctionSet);

  // Description:
  // Returns 1 if the solver uses adaptive stepsize control,
  // 0 otherwise
  virtual int IsAdaptive() { return this->Adaptive; }

//BTX
  enum ErrorCodes
  {
    OUT_OF_DOMAIN = 1,
    NOT_INITIALIZED = 2,
    UNEXPECTED_VALUE = 3
  };
//ETX

protected:
  vtkInitialValueProblemSolver();
  ~vtkInitialValueProblemSolver();

  virtual void Initialize();

  vtkFunctionSet* FunctionSet;

  double* Vals;
  double* Derivs;
  int Initialized;
  int Adaptive;

private:
  vtkInitialValueProblemSolver(const vtkInitialValueProblemSolver&);  // Not implemented.
  void operator=(const vtkInitialValueProblemSolver&);  // Not implemented.
};

#endif

APT Browse - Built by Thomas Orozco.