This interface should be implemented by anyone who is interested
in getting the solution of an ordinary differential equation at
fixed time steps. Objects implementing this interface should be
wrapped within an instance of StepNormalizer that itself
is used as the general StepHandler by the integrator. The
StepNormalizer object is called according to the integrator
internal algorithms and it calls objects implementing this
interface as necessary at fixed time steps.
StepHandler, StepNormalizer
| Modifier and Type | Method and Description |
|---|---|
| public void | handleStep(double
time of the current step t, double[] state vector at t. For efficiency purposes, the y, double[] StepNormalizer class reuses the same array 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 complete array of all
steps), it should build a local copy store this copy.derivatives of the state vector state vector at t.
For efficiency purposes, the yDot, boolean StepNormalizer class reuses
the same array 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 complete array of all
steps), it should build a local copy store this copy.true if the step is the last one isLast)Handle the last accepted step |
| public void | init(double
start value of the independent time variable t0, double[] array containing the start value of the state vector y0, double target time for the integration t)Initialize step handler at the start of an ODE integration. |
| handleStep | back to summary |
|---|---|
| public void handleStep(double t, double[] y, double[] yDot, boolean isLast) Handle the last accepted step
| |
| init | back to summary |
|---|---|
| public void init(double t0, double[] y0, double t) Initialize step handler at the start of an ODE integration. This method is called once at the start of the integration. It may be used by the step handler to initialize some internal data if needed.
| |