sofa::component::odesolver::RungeKutta4Solver Class Reference
A popular time integration method, much more precise than the EulerSolver. More...
#include <RungeKutta4Solver.h>
Public Member Functions | |
| void | solve (double dt) |
| Main computation method. | |
| virtual double | getIntegrationFactor (int inputDerivative, int outputDerivative) const |
| Given an input derivative order (0 for position, 1 for velocity, 2 for acceleration), how much will it affect the output derivative of the given order. | |
| virtual double | getSolutionIntegrationFactor (int outputDerivative) const |
| Given a solution of the linear system, how much will it affect the output derivative of the given order. | |
Detailed Description
A popular time integration method, much more precise than the EulerSolver.Definition at line 41 of file RungeKutta4Solver.h.
Member Function Documentation
| virtual double sofa::component::odesolver::RungeKutta4Solver::getIntegrationFactor | ( | int | inputDerivative, | |
| int | outputDerivative | |||
| ) | const [inline, virtual] |
Given an input derivative order (0 for position, 1 for velocity, 2 for acceleration), how much will it affect the output derivative of the given order.
use real factors depending on the current RK4 step
Implements sofa::core::componentmodel::behavior::OdeSolver.
Definition at line 50 of file RungeKutta4Solver.h.
References sofa::core::objectmodel::BaseObject::getContext(), and sofa::core::objectmodel::BaseContext::getDt().
| virtual double sofa::component::odesolver::RungeKutta4Solver::getSolutionIntegrationFactor | ( | int | outputDerivative | ) | const [inline, virtual] |
Given a solution of the linear system, how much will it affect the output derivative of the given order.
use real factors depending on the current RK4 step
Implements sofa::core::componentmodel::behavior::OdeSolver.
Definition at line 66 of file RungeKutta4Solver.h.
References sofa::core::objectmodel::BaseObject::getContext(), and sofa::core::objectmodel::BaseContext::getDt().
| void sofa::component::odesolver::RungeKutta4Solver::solve | ( | double | dt | ) | [virtual] |
Main computation method.
Specify and execute all computation for timestep integration, i.e. advancing the state from time t to t+dt.
Implements sofa::core::componentmodel::behavior::OdeSolver.
Definition at line 51 of file RungeKutta4Solver.cpp.
References sofa::simulation::SolverImpl::addSeparateGravity(), sofa::simulation::OdeSolverImpl::computeAcc(), sofa::simulation::Visitor::execute(), sofa::core::objectmodel::BaseObject::f_printLog, sofa::core::objectmodel::BaseObject::getContext(), sofa::core::objectmodel::BaseObject::getTime(), sofa::core::objectmodel::Data< T >::getValue(), sofa::simulation::MechanicalVMultiOpVisitor::ops, sofa::core::componentmodel::behavior::MultiVector< Parent >::peq(), sofa::core::componentmodel::behavior::BaseMechanicalState::VecId::position(), sofa::core::componentmodel::behavior::BaseMechanicalState::VecId::V_COORD, sofa::core::componentmodel::behavior::BaseMechanicalState::VecId::V_DERIV, and sofa::core::componentmodel::behavior::BaseMechanicalState::VecId::velocity().
The documentation for this class was generated from the following files:
- modules/sofa/component/odesolver/RungeKutta4Solver.h
- modules/sofa/component/odesolver/RungeKutta4Solver.cpp
