public interface StepHandler
The ODE integrators compute the evolution of the state vector at some grid points that depend on their own internal algorithm. Once they have found a new grid point (possibly after having computed several evaluation of the derivative at intermediate points), they provide it to objects implementing this interface. These objects typically either ignore the intermediate steps and wait for the last one, store the points in an ephemeris, or forward them to specialized processing or output methods.
|Modifier and Type||Method and Description|
Handle the last accepted step
Determines whether this handler needs dense output.
Reset the step handler.
This method allows the integrator to avoid performing extra
computation if the handler does not need dense output. If this
method returns false, the integrator will call the
handleStep(org.apache.commons.math.ode.sampling.StepInterpolator, boolean) method with a
than a custom interpolator.
void handleStep(StepInterpolator interpolator, boolean isLast) throws DerivativeException
interpolator- interpolator for the last accepted step. For efficiency purposes, the various integrators reuse the same object on each call, so if the instance wants to keep it across all calls (for example to provide at the end of the integration a continuous model valid throughout the integration range, as the
ContinuousOutputModelclass does), it should build a local copy using the clone method of the interpolator and store this copy. Keeping only a reference to the interpolator and reusing it will result in unpredictable behavior (potentially crashing the application).
isLast- true if the step is the last one
DerivativeException- if user code called from step interpolator finalization triggers one
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