mbsim 4.0.0 MBSim Kernel

lsoda_integrator.h
1 /* Copyright (C) 2004-2018 Martin Förg
2
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Lesser General Public
5 * License as published by the Free Software Foundation; either
6 * version 2.1 of the License, or (at your option) any later version.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * Lesser General Public License for more details.
12 *
13 * You should have received a copy of the GNU Lesser General Public
14 * License along with this library; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16
17 *
18 * Contact:
19 * martin.o.foerg@googlemail.com
20 *
21 */
22
23 #ifndef _LSODA_INTEGRATOR_H_
24 #define _LSODA_INTEGRATOR_H_
25
26 #include "root_finding_integrator.h"
27
28 namespace MBSim {
29
30 extern bool odePackInUse;
31
40 class LSODAIntegrator : public RootFindingIntegrator {
41
42 private:
43
44 static void fzdot(int* neq, double* t, double* z_, double* zd_);
45
47 double dtMax{0};
49 double dtMin{0};
51 fmatvec::Vec aTol;
53 fmatvec::Vec rTol;
55 double dt0{0};
57 int maxSteps{10000};
58
59 public:
60
61 void setMaximumStepSize(double dtMax_) { dtMax = dtMax_; }
62 void setMinimumStepSize(double dtMin_) { dtMin = dtMin_; }
63 void setAbsoluteTolerance(const fmatvec::Vec &aTol_) { aTol <<= aTol_; }
64 void setAbsoluteTolerance(double aTol_) { aTol.resize(1,fmatvec::INIT,aTol_); }
65 void setRelativeTolerance(const fmatvec::Vec &rTol_) { rTol <<= rTol_; }
66 void setRelativeTolerance(double rTol_) { rTol.resize(1,fmatvec::INIT,rTol_); }
67 void setInitialStepSize(double dt0_) { dt0 = dt0_; }
68 void setStepLimit(int maxSteps_) { maxSteps = maxSteps_; }
69
70 using Integrator::integrate;
71 void integrate();
72
73 virtual void initializeUsingXML(xercesc::DOMElement *element);
74 };
75
76 }
77
78 #endif
MBSim::LSODAIntegrator::initializeUsingXML
virtual void initializeUsingXML(xercesc::DOMElement *element)
initialize integrator
Definition: lsoda_integrator.cc:246
MBSim::LSODAIntegrator::rTol
fmatvec::Vec rTol
Definition: lsoda_integrator.h:53
MBSim::LSODAIntegrator::integrate
void integrate()
start the integration of the system set by setSystem. Each class implemeting this function should cal...
Definition: lsoda_integrator.cc:51
MBSim::LSODAIntegrator::aTol
fmatvec::Vec aTol
Definition: lsoda_integrator.h:51
MBSim::LSODAIntegrator::dtMin
double dtMin
Definition: lsoda_integrator.h:49
MBSim::LSODAIntegrator
Hindmarsh’s ODE solver LSODA.
Definition: lsoda_integrator.h:40
MBSim::RootFindingIntegrator
Integrator with root-finding.
Definition: root_finding_integrator.h:32
MBSim::Integrator::integrate
virtual void integrate()=0
start the integration of the system set by setSystem. Each class implemeting this function should cal...
MBSim::LSODAIntegrator::dt0
double dt0
Definition: lsoda_integrator.h:55
MBSim::LSODAIntegrator::maxSteps
int maxSteps
Definition: lsoda_integrator.h:57
MBSim::LSODAIntegrator::dtMax
double dtMax
Definition: lsoda_integrator.h:47
MBSim
namespace MBSim
Definition: bilateral_constraint.cc:30