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vtkInitialValueProblemSolver.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkInitialValueProblemSolver.h,v $
00005   Language:  C++
00006 
00007   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen 
00008   All rights reserved.
00009   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00010 
00011      This software is distributed WITHOUT ANY WARRANTY; without even 
00012      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
00013      PURPOSE.  See the above copyright notice for more information.
00014 
00015 =========================================================================*/
00035 #ifndef __vtkInitialValueProblemSolver_h
00036 #define __vtkInitialValueProblemSolver_h
00037 
00038 #include "vtkObject.h"
00039 
00040 class vtkFunctionSet;
00041 
00042 class VTK_COMMON_EXPORT vtkInitialValueProblemSolver : public vtkObject
00043 {
00044 public:
00045   vtkTypeRevisionMacro(vtkInitialValueProblemSolver,vtkObject);
00046   virtual void PrintSelf(ostream& os, vtkIndent indent);
00047 
00049 
00063   virtual int ComputeNextStep(float* xprev, float* xnext, float t,
00064                               float& delT, float maxError, 
00065                               float& error) 
00066     {
00067       float minStep = delT;
00068       float maxStep = delT;
00069       float delTActual;
00070       return this->ComputeNextStep(xprev, 0, xnext, t, delT, delTActual,
00071                                    minStep, maxStep, maxError, error);
00072     }
00073   virtual int ComputeNextStep(float* xprev, float* dxprev, float* xnext, 
00074                               float t, float& delT, float maxError, 
00075                               float& error)
00076     {
00077       float minStep = delT;
00078       float maxStep = delT;
00079       float delTActual;
00080       return this->ComputeNextStep(xprev, dxprev, xnext, t, delT, delTActual,
00081                                    minStep, maxStep, maxError, error);
00082     }
00083   virtual int ComputeNextStep(float* xprev, float* xnext, 
00084                               float t, float& delT, float& delTActual,
00085                               float minStep, float maxStep,
00086                               float maxError, float& error)
00087     {
00088       return this->ComputeNextStep(xprev, 0, xnext, t, delT, delTActual,
00089                                    minStep, maxStep, maxError, error);
00090     }
00091   virtual int ComputeNextStep(float* xprev, float* dxprev, float* xnext, 
00092                               float t, float& delT, float& delTActual, 
00093                               float minStep, float maxStep, 
00094                               float maxError, float& error) = 0;
00096 
00098 
00099   virtual void SetFunctionSet(vtkFunctionSet* functionset);
00100   vtkGetObjectMacro(FunctionSet,vtkFunctionSet);
00102 
00104   virtual int IsAdaptive() { return this->Adaptive; }
00105   
00106 //BTX
00107   enum ErrorCodes
00108   {
00109     OUT_OF_DOMAIN = 1,
00110     NOT_INITIALIZED = 2,
00111     UNEXPECTED_VALUE = 3
00112   };
00113 //ETX
00114 
00115 protected:
00116   vtkInitialValueProblemSolver();
00117   ~vtkInitialValueProblemSolver();
00118 
00119   virtual void Initialize();
00120 
00121   vtkFunctionSet* FunctionSet;
00122 
00123   float* Vals;
00124   float* Derivs;
00125   int Initialized;
00126   int Adaptive;
00127 
00128 private:
00129   vtkInitialValueProblemSolver(const vtkInitialValueProblemSolver&);  // Not implemented.
00130   void operator=(const vtkInitialValueProblemSolver&);  // Not implemented.
00131 };
00132 
00133 #endif
00134 
00135 
00136 
00137