VTK
vtkRungeKutta2.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkRungeKutta2.h
5
6 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7 All rights reserved.
8 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9
10 This software is distributed WITHOUT ANY WARRANTY; without even
11 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12 PURPOSE. See the above copyright notice for more information.
13
14=========================================================================*/
29#ifndef vtkRungeKutta2_h
30#define vtkRungeKutta2_h
31
32#include "vtkCommonMathModule.h" // For export macro
34
35class VTKCOMMONMATH_EXPORT vtkRungeKutta2 : public vtkInitialValueProblemSolver
36{
37public:
39
44
46
59 int ComputeNextStep(double* xprev, double* xnext,
60 double t, double& delT,
61 double maxError, double& error) VTK_OVERRIDE
62 {
63 double minStep = delT;
64 double maxStep = delT;
65 double delTActual;
66 return this->ComputeNextStep(xprev, 0, xnext, t, delT, delTActual,
67 minStep, maxStep, maxError, error);
68 }
69 int ComputeNextStep(double* xprev, double* dxprev, double* xnext,
70 double t, double& delT,
71 double maxError, double& error) VTK_OVERRIDE
72 {
73 double minStep = delT;
74 double maxStep = delT;
75 double delTActual;
76 return this->ComputeNextStep(xprev, dxprev, xnext, t, delT, delTActual,
77 minStep, maxStep, maxError, error);
78 }
79 int ComputeNextStep(double* xprev, double* xnext,
80 double t, double& delT, double& delTActual,
81 double minStep, double maxStep,
82 double maxError, double& error) VTK_OVERRIDE
83 {
84 return this->ComputeNextStep(xprev, 0, xnext, t, delT, delTActual,
85 minStep, maxStep, maxError, error);
86 }
87 int ComputeNextStep(double* xprev, double* dxprev, double* xnext,
88 double t, double& delT, double& delTActual,
89 double minStep, double maxStep,
90 double maxError, double& error) VTK_OVERRIDE;
92
93protected:
95 ~vtkRungeKutta2() VTK_OVERRIDE;
96private:
97 vtkRungeKutta2(const vtkRungeKutta2&) VTK_DELETE_FUNCTION;
98 void operator=(const vtkRungeKutta2&) VTK_DELETE_FUNCTION;
99};
100
101#endif
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110// VTK-HeaderTest-Exclude: vtkRungeKutta2.h
Integrate a set of ordinary differential equations (initial value problem) in time.
virtual int ComputeNextStep(double *xprev, double *xnext, double t, double &delT, double maxError, double &error)
Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of...
Integrate an initial value problem using 2nd order Runge-Kutta method.
int ComputeNextStep(double *xprev, double *xnext, double t, double &delT, double maxError, double &error) override
Given initial values, xprev , initial time, t and a requested time interval, delT calculate values of...
int ComputeNextStep(double *xprev, double *dxprev, double *xnext, double t, double &delT, double maxError, double &error) override
static vtkRungeKutta2 * New()
Construct a vtkRungeKutta2 with no initial FunctionSet.
int ComputeNextStep(double *xprev, double *dxprev, double *xnext, double t, double &delT, double &delTActual, double minStep, double maxStep, double maxError, double &error) override
int ComputeNextStep(double *xprev, double *xnext, double t, double &delT, double &delTActual, double minStep, double maxStep, double maxError, double &error) override
~vtkRungeKutta2() override