T - the type of the field elementspublic interface FieldStepInterpolator<T extends RealFieldElement<T>>
The various ODE integrators provide objects implementing this interface to the step handlers. These objects are often custom objects tightly bound to the integrator internal algorithms. The handlers can use these objects to retrieve the state vector at intermediate times between the previous and the current grid points (this feature is often called dense output).
FirstOrderFieldIntegrator,
FieldStepHandler| Modifier and Type | Method and Description |
|---|---|
FieldODEStateAndDerivative<T> |
getCurrentState()
Get the state at current grid point time.
|
FieldODEStateAndDerivative<T> |
getInterpolatedState(T time)
Get the state at interpolated time.
|
FieldODEStateAndDerivative<T> |
getPreviousState()
Get the state at previous grid point time.
|
boolean |
isForward()
Check if the natural integration direction is forward.
|
FieldODEStateAndDerivative<T> getPreviousState()
FieldODEStateAndDerivative<T> getCurrentState()
FieldODEStateAndDerivative<T> getInterpolatedState(T time)
Setting the time outside of the current step is allowed, but should be used with care since the accuracy of the interpolator will probably be very poor far from this step. This allowance has been added to simplify implementation of search algorithms near the step endpoints.
time - time of the interpolated pointboolean isForward()
This method provides the integration direction as specified by the integrator itself, it avoid some nasty problems in degenerated cases like null steps due to cancellation at step initialization, step control or discrete events triggering.
Copyright © 2003–2016 The Apache Software Foundation. All rights reserved.