org.deegree_impl.services.wts
Class ViewPoint_Impl

java.lang.Object
  org.deegree_impl.services.wts.ViewPoint_Impl

All Implemented Interfaces:

ViewPoint

public class ViewPoint_Impl

extends java.lang.Object

implements ViewPoint

-----------------------------------------------------------------------

Version:

$Revision: 1.10 $ $Date: 2004/02/09 08:00:39 $

Author:

Katharina Lupp, Andreas Poth

Field Summary

private double	aov
private Point3d[]	footprint
private double	hdir
private Point3d	observerPosition
private static double	rad0
private static double	rad180
private static double	rad270
private static double	rad360
private static double	rad90
private Point3d	targetPoint
private double	vdir

Constructor Summary

ViewPoint_Impl(double hdir, double vdir, double distance, Point3d targetPoint, double aov)
Creates a new instance of ViewPoint_Impl

ViewPoint_Impl(Point3d observerPosition, double hdir, double vdir, double aov)
Creates a new instance of ViewPoint_Impl

ViewPoint_Impl(Point3d observerPosition, Point3d targetPoint, double aov)
Creates a new instance of ViewPoint_Impl

Method Summary

private double	calcDir(double height, double dist)
private double[]	calcDirections() calculates the vertical and horizontal direction of the observer's view
private Point3d[]	calcFootprint(double height) calculates footprint
private Point3d	calcObserverPosition(double distance) calculates the observers position for a given target point, distance and view directions.
private Point3d	calcTargetPoint(double height) calculates the target point of the view for the submitted height VP | \ | \ | \______________ height = XX | |\ |___|_\_____________ height = 0 TP1 TP2
double	getAoV() gets the field of view of the observer in radians
Point3d[]	getFootprint() get footprint or rather the field of view
Point3d[]	getFootprint(double height) get footprint or rather the field of view
double	getHDirection() gets the horizontal direction in radians the observer looks
Point3d	getObserverPosition() gets the position of the observer, the directions he looks and his field of view in radians
Point3d	getTarget() gets the directions the observer looks and his field of view in radians
double	getVDirection() gets vertical direction in radians the observer looks
void	setAoV(double aov) defines the field of view of the observer in radians
void	setHDirection(double hdir) defines the horizontal direction in radians the observer looks
void	setObserverPosition(Point3d observerPosition) defines the position of the observer, the directions he looks and his field of view in radians
void	setTarget(Point3d targetPoint) defines the directions the observer looks and his field of view in radians
void	setVDirection(double vdir) defines vertical direction in radians the observer looks
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

rad0

private static double rad0

rad90

private static double rad90

rad180

private static double rad180

rad270

private static double rad270

rad360

private static double rad360

observerPosition

private Point3d observerPosition

targetPoint

private Point3d targetPoint

footprint

private Point3d[] footprint

aov

private double aov

hdir

private double hdir

vdir

private double vdir

Constructor Detail

ViewPoint_Impl

public ViewPoint_Impl(double hdir,
                      double vdir,
                      double distance,
                      Point3d targetPoint,
                      double aov)

Creates a new instance of ViewPoint_Impl

ViewPoint_Impl

public ViewPoint_Impl(Point3d observerPosition,
                      Point3d targetPoint,
                      double aov)

Creates a new instance of ViewPoint_Impl

ViewPoint_Impl

public ViewPoint_Impl(Point3d observerPosition,
                      double hdir,
                      double vdir,
                      double aov)
               throws InvalidArcException

Creates a new instance of ViewPoint_Impl

Method Detail

calcObserverPosition

private Point3d calcObserverPosition(double distance)

calculates the observers position for a given target point, distance and view directions.

 VP
 | \
 |  \
 |   \
 |    \
 |_____\_____________ 
      TP
 

calcTargetPoint

private Point3d calcTargetPoint(double height)

calculates the target point of the view for the submitted height

 VP
 | \
 |  \
 |   \______________ height = XX
 |   |\
 |___|_\_____________ height = 0
   TP1  TP2
 

calcDirections

private double[] calcDirections()

calculates the vertical and horizontal direction of the observer's view

calcDir

private double calcDir(double height,
                       double dist)

Parameters:

height -

dist -

Returns:

calcFootprint

private Point3d[] calcFootprint(double height)

calculates footprint

getAoV

public double getAoV()

gets the field of view of the observer in radians

Specified by:

getAoV in interface ViewPoint

setAoV

public void setAoV(double aov)

defines the field of view of the observer in radians

Specified by:

setAoV in interface ViewPoint

getHDirection

public double getHDirection()

gets the horizontal direction in radians the observer looks

Specified by:

getHDirection in interface ViewPoint

setHDirection

public void setHDirection(double hdir)

defines the horizontal direction in radians the observer looks

Specified by:

setHDirection in interface ViewPoint

getTarget

public Point3d getTarget()

gets the directions the observer looks and his field of view in radians

Specified by:

getTarget in interface ViewPoint

setTarget

public void setTarget(Point3d targetPoint)

defines the directions the observer looks and his field of view in radians

Specified by:

setTarget in interface ViewPoint

getVDirection

public double getVDirection()

gets vertical direction in radians the observer looks

Specified by:

getVDirection in interface ViewPoint

setVDirection

public void setVDirection(double vdir)

defines vertical direction in radians the observer looks

Specified by:

setVDirection in interface ViewPoint

getObserverPosition

public Point3d getObserverPosition()

gets the position of the observer, the directions he looks and his field of view in radians

Specified by:

getObserverPosition in interface ViewPoint

setObserverPosition

public void setObserverPosition(Point3d observerPosition)

defines the position of the observer, the directions he looks and his field of view in radians

Specified by:

setObserverPosition in interface ViewPoint

getFootprint

public Point3d[] getFootprint()

get footprint or rather the field of view

Specified by:

getFootprint in interface ViewPoint

getFootprint

public Point3d[] getFootprint(double height)

get footprint or rather the field of view

Specified by:

getFootprint in interface ViewPoint

toString

public java.lang.String toString()