com.luciad.tea.viewshed

Terrain Analysis EngineInterface ILcdVisibilityComposite

All Known Implementing Classes:

TLcdAverageVisibilityComposite, TLcdMaximalVisibilityComposite, TLcdMinimalVisibilityComposite, TLcdProductVisibilityComposite

public interface ILcdVisibilityComposite

Interface which defines a strategy for compositing visibility values from different viewsheds.

Implementations of this interface should be stateless and thread-safe.

Since:

11.0

Method Summary

Modifier and Type	Method and Description
double	compose(double aPreviousVisibility, double aCurrentVisibility) Performs one compositing step by combining the previously accumulated visibility value with a new value.
double	initialVisibility() Returns the visibility value with which the compositing should be initialized.
boolean	stop(double aVisibility) Checks whether additional compositing steps are useful.

Method Detail

initialVisibility

double initialVisibility()

Returns the visibility value with which the compositing should be initialized.

Returns:

the visibility value with which the compositing should be initialized.

compose

double compose(double aPreviousVisibility,
               double aCurrentVisibility)

Performs one compositing step by combining the previously accumulated visibility value with a new value.

Parameters:

aPreviousVisibility - the previously accumulated visibility value

aCurrentVisibility - new visibility value

Returns:

the new composited visibility value

stop

boolean stop(double aVisibility)

Checks whether additional compositing steps are useful.

Parameters:

aVisibility - the accumulated visibility value so far.

Returns:

whether compositing should be terminated