OrekitStepInterpolator (ORbit Extrapolation KIT 10.1 API)

```
public interface OrekitStepInterpolator
```
This interface is a space-dynamics aware step interpolator.
It mirrors the ODEStateInterpolator interface from Hipparchus but provides a space-dynamics interface to the methods.

Author:

Luc Maisonobe

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`SpacecraftState`	`getCurrentState()` Get the state at current grid point date.
`SpacecraftState`	`getInterpolatedState(AbsoluteDate date)` Get the state at interpolated date.
`SpacecraftState`	`getPreviousState()` Get the state at previous grid point date.
`boolean`	`isCurrentStateInterpolated()` Determines if the `current state` is computed directly by the integrator, or if it is calculated using `interpolation`.
`boolean`	`isForward()` Check is integration direction is forward in date.
`boolean`	`isPreviousStateInterpolated()` Determines if the `previous state` is computed directly by the integrator, or if it is calculated using `interpolation`.
`OrekitStepInterpolator`	`restrictStep(SpacecraftState newPreviousState, SpacecraftState newCurrentState)` Create a new restricted version of the instance.

- Method Detail
  - getPreviousState
```
SpacecraftState getPreviousState()
```
    Get the state at previous grid point date.
    
    Returns:
    
    state at previous grid point date
  - isPreviousStateInterpolated
```
boolean isPreviousStateInterpolated()
```
    Determines if the previous state is computed directly by the integrator, or if it is calculated using interpolation.
    Typically the previous state is directly computed by the integrator, but when events are detected the steps are shortened so that events occur on step boundaries which means the previous state may be computed by the interpolator.
    
    Returns:
    
    true if the previous state was calculated by the interpolator and false if it was computed directly by the integrator.
  - getCurrentState
```
SpacecraftState getCurrentState()
```
    Get the state at current grid point date.
    
    Returns:
    
    state at current grid point date
  - isCurrentStateInterpolated
```
boolean isCurrentStateInterpolated()
```
    Determines if the current state is computed directly by the integrator, or if it is calculated using interpolation.
    Typically the current state is directly computed by the integrator, but when events are detected the steps are shortened so that events occur on step boundaries which means the current state may be computed by the interpolator.
    
    Returns:
    
    true if the current state was calculated by the interpolator and false if it was computed directly by the integrator.
  - getInterpolatedState
```
SpacecraftState getInterpolatedState(AbsoluteDate date)
```
    Get the state at interpolated date.
    
    Parameters:
    
    date - date of the interpolated state
    
    Returns:
    
    state at interpolated date
  - isForward
```
boolean isForward()
```
    Check is integration direction is forward in date.
    
    Returns:
    
    true if integration is forward in date
  - restrictStep
```
OrekitStepInterpolator restrictStep(SpacecraftState newPreviousState,
                                    SpacecraftState newCurrentState)
```
    Create a new restricted version of the instance.
    The instance is not changed at all.
    
    Parameters:
    
    newPreviousState - start of the restricted step
    
    newCurrentState - end of the restricted step
    
    Returns:
    
    restricted version of the instance
    
    Since:
    
    9.0
    
    See Also:
    
    getPreviousState(), getCurrentState()

Interface OrekitStepInterpolator

Method Summary

Method Detail

getPreviousState

isPreviousStateInterpolated

getCurrentState

isCurrentStateInterpolated

getInterpolatedState

isForward

restrictStep