com.luciad.tea.viewshed

Terrain Analysis EngineClass TLcdDirectionalViewshedObserver

java.lang.Object

com.luciad.tea.viewshed.ALcdViewshedObserver

com.luciad.tea.viewshed.TLcdDirectionalViewshedObserver

public final class TLcdDirectionalViewshedObserver
extends ALcdViewshedObserver

Extension of ALcdViewshedObserver. Defines a viewing direction for a ILcdViewshed.

An example use case for a directional observer is to model shadows cast by the sun. In this approximation, the sun is set at infinite distance, and only a direction is necessary to calculate the shadows. This direction can be modeled using TLcdDirectionalViewshedObserver. The resulting shadows will run parallel with the direction specified by this viewshed observer.

Since:

11.0

Constructor Summary

Constructors

Constructor and Description
TLcdDirectionalViewshedObserver(ILcdPoint aDirection) Creates a new TLcdDirectionalViewshedObserver for a given direction.

Method Summary

Modifier and Type	Method and Description
ILcdPoint	getDirection() Returns the direction of the viewshed observer, defined in the reference of the viewshed.

Methods inherited from class java.lang.Object

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

Constructor Detail

TLcdDirectionalViewshedObserver

public TLcdDirectionalViewshedObserver(ILcdPoint aDirection)

Creates a new TLcdDirectionalViewshedObserver for a given direction.

Parameters:

aDirection - A direction that represents the viewing direction of the observer. The reference of the direction should be defined in the same reference as the viewshed for which it is used.

Method Detail

getDirection

public ILcdPoint getDirection()

Returns the direction of the viewshed observer, defined in the reference of the viewshed.

Returns:

an ILcdPoint that should be interpreted as a vector direction of the viewshed, defined in the reference of the viewshed.