VTK: dox/Common/Math/vtkRungeKutta2.h Source File

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    vtkRungeKutta2.h
00005 
00006   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
00007   All rights reserved.
00008   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
00009 
00010      This software is distributed WITHOUT ANY WARRANTY; without even
00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
00012      PURPOSE.  See the above copyright notice for more information.
00013 
00014 =========================================================================*/
00028 #ifndef __vtkRungeKutta2_h
00029 #define __vtkRungeKutta2_h
00030 
00031 #include "vtkCommonMathModule.h" // For export macro
00032 #include "vtkInitialValueProblemSolver.h"
00033 
00034 class VTKCOMMONMATH_EXPORT vtkRungeKutta2 : public vtkInitialValueProblemSolver
00035 {
00036 public:
00037   vtkTypeMacro(vtkRungeKutta2,vtkInitialValueProblemSolver);
00038 
00040   static vtkRungeKutta2 *New();
00041 
00043 
00049   virtual int ComputeNextStep(double* xprev, double* xnext, double t,
00050                               double& delT, double maxError, double& error)
00051     {
00052       double minStep = delT;
00053       double maxStep = delT;
00054       double delTActual;
00055       return this->ComputeNextStep(xprev, 0, xnext, t, delT, delTActual,
00056                                    minStep, maxStep, maxError, error);
00057     }
00058   virtual int ComputeNextStep(double* xprev, double* dxprev, double* xnext,
00059                               double t, double& delT,
00060                               double maxError, double& error)
00061     {
00062       double minStep = delT;
00063       double maxStep = delT;
00064       double delTActual;
00065       return this->ComputeNextStep(xprev, dxprev, xnext, t, delT, delTActual,
00066                                    minStep, maxStep, maxError, error);
00067     }
00068   virtual int ComputeNextStep(double* xprev, double* xnext,
00069                               double t, double& delT, double& delTActual,
00070                               double minStep, double maxStep,
00071                               double maxError, double& error)
00072     {
00073       return this->ComputeNextStep(xprev, 0, xnext, t, delT, delTActual,
00074                                    minStep, maxStep, maxError, error);
00075     }
00076   virtual int ComputeNextStep(double* xprev, double* dxprev, double* xnext,
00077                               double t, double& delT, double& delTActual,
00078                               double minStep, double maxStep,
00079                               double maxError, double& error);
00081 
00082 protected:
00083   vtkRungeKutta2();
00084   ~vtkRungeKutta2();
00085 private:
00086   vtkRungeKutta2(const vtkRungeKutta2&);  // Not implemented.
00087   void operator=(const vtkRungeKutta2&);  // Not implemented.
00088 };
00089 
00090 #endif
00091 
00092 
00093 
00094 
00095 
00096 
00097 
00098 
00099 // VTK-HeaderTest-Exclude: vtkRungeKutta2.h