com.luciad.tea.viewshed

Terrain Analysis EngineClass TLcdMaximalVisibilityComposite

java.lang.Object

com.luciad.tea.viewshed.TLcdMaximalVisibilityComposite

All Implemented Interfaces:

ILcdVisibilityComposite

public class TLcdMaximalVisibilityComposite
extends Object
implements ILcdVisibilityComposite

This ILcdVisibilityComposite will output the maximum of all provided viewshed visibilities.

For instance, if an instance of TLcdMaximalVisibilityComposite would obtain 3 visibilities 0.2, 0.5 and 0.8 respectively, then the result of this composite would be 0.8.

Figure 1: This class combines several visibilities to output their maximum. This is useful for example for visualizing which regions are visible to any observer.

Since:

11.0

Constructor Summary

Constructors

Constructor and Description
TLcdMaximalVisibilityComposite() Creates a new instance of TLcdMaximalVisibilityComposite

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.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TLcdMaximalVisibilityComposite

public TLcdMaximalVisibilityComposite()

Creates a new instance of TLcdMaximalVisibilityComposite

Method Detail

initialVisibility

public double initialVisibility()

Description copied from interface: ILcdVisibilityComposite

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

Specified by:

initialVisibility in interface ILcdVisibilityComposite

Returns:

the visibility value with which the compositing should be initialized.

compose

public double compose(double aPreviousVisibility,
                      double aCurrentVisibility)

Description copied from interface: ILcdVisibilityComposite

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

Specified by:

compose in interface ILcdVisibilityComposite

Parameters:

aPreviousVisibility - the previously accumulated visibility value

aCurrentVisibility - new visibility value

Returns:

the new composited visibility value

stop

public boolean stop(double aVisibility)

Description copied from interface: ILcdVisibilityComposite

Checks whether additional compositing steps are useful.

Specified by:

stop in interface ILcdVisibilityComposite

Parameters:

aVisibility - the accumulated visibility value so far.

Returns:

whether compositing should be terminated