generator2
Class ExternalObject

java.lang.Object
  |
  +--generator2.ExternalObject

All Implemented Interfaces:

LayerSpatialSearchTreeObject, SpatialSearchTreeEntry, SpatialSearchTreeObject

public class ExternalObject

extends java.lang.Object

implements LayerSpatialSearchTreeObject

Class representing an external object.

Constructor Summary

ExternalObject(int id, int time, int lifetime, int objClass, int x, int y, int width, int height)
Constructor.

Method Summary

void	addToContainer(ExternalObjects container) Adds the object to a container.
double	computeDistanceTo(int[] p) Computes the distance to a given point.
boolean	contains(MBR rect) Tests whether the object contains a given rectangle or not.
void	draw(java.awt.Graphics g, int scale) Draws the MBR of the object if it is exists at the actual time.
long	getId() Returns the identifier of the external object.
int	getLayer() Returns the layer of the object.
MBR	getMBR() Returns the area.
int	getNumOfDimensions() Returns the number of dimensions.
int	getObjectClass() Returns the object class of the object.
java.lang.Object	getType() Returns the class of the object as Integer.
boolean	interacts(int x, int y, int scale) Tests whether an object is selected by a point or not.
boolean	intersects(MBR r) Tests whether the object intersects a given rectangle.
boolean	intersects(java.lang.Object obj) Tests whether the object intersects another object.
boolean	isAlive(int currTime) Returns whether the object is alive or not.
boolean	isContainedBy(MBR rect) Tests whether the object is contained by a given rectangle or not.
boolean	isContainedBy(SpatialSearchTreeEntry entry) Tests whether the object is contained by a given entry or not.
boolean	isOfSameType(SpatialSearchTreeObject obj) Tests whether the object is of the same type as the given object or not.
boolean	isVisible(double scale) Test whether the external object is visible or not.
boolean	isVisible(int scale) Tests whether the object is visible at a given scale or not.
void	reportDeletedObject(Reporter reporter, int currTime) Reports a deleted external object.
void	reportMovingObject(Reporter reporter, int currTime) Reports a moving external object.
void	reportNewObject(Reporter reporter) Reports a new external object.
void	setMBR(MBR newMBR) Sets the MBR of the object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExternalObject

public ExternalObject(int id,
                      int time,
                      int lifetime,
                      int objClass,
                      int x,
                      int y,
                      int width,
                      int height)

Constructor.

Parameters:

id - the identifier

time - current time

lifetime - lifetime

objClass - id of the object class

x - x-coordinate

y - y-coordinate

width - width

height - height

Method Detail

addToContainer

public void addToContainer(ExternalObjects container)

Adds the object to a container.

Parameters:

container - the container

computeDistanceTo

public double computeDistanceTo(int[] p)

Computes the distance to a given point.

Specified by:

computeDistanceTo in interface SpatialSearchTreeObject

Parameters:

p - coordinates of the point

Returns:

distance

contains

public boolean contains(MBR rect)

Tests whether the object contains a given rectangle or not.

Specified by:

contains in interface SpatialSearchTreeObject

Parameters:

rect - the rectangle

Returns:

contains?

draw

public void draw(java.awt.Graphics g,
                 int scale)

Draws the MBR of the object if it is exists at the actual time.

Specified by:

draw in interface SpatialSearchTreeObject

Parameters:

g - graphic context

scale - actual scale

getId

public long getId()

Returns the identifier of the external object.

Specified by:

getId in interface SpatialSearchTreeObject

Returns:

the id

getLayer

public int getLayer()

Returns the layer of the object.

Specified by:

getLayer in interface LayerSpatialSearchTreeObject

Returns:

the layer

getMBR

public MBR getMBR()

Returns the area.

Specified by:

getMBR in interface SpatialSearchTreeEntry

Returns:

the area

getNumOfDimensions

public int getNumOfDimensions()

Returns the number of dimensions.

Specified by:

getNumOfDimensions in interface SpatialSearchTreeEntry

Returns:

dimensions

getObjectClass

public int getObjectClass()

Returns the object class of the object.

Returns:

id of the object class

getType

public java.lang.Object getType()

Returns the class of the object as Integer.

Returns:

class

interacts

public boolean interacts(int x,
                         int y,
                         int scale)

Tests whether an object is selected by a point or not.

Parameters:

x - x-coordinate of the point

y - y-coordinate of the point

scale - scale

Returns:

selected?

intersects

public boolean intersects(java.lang.Object obj)

Tests whether the object intersects another object.

Specified by:

intersects in interface SpatialSearchTreeObject

Parameters:

obj - the object

Returns:

intersects?

intersects

public boolean intersects(MBR r)

Tests whether the object intersects a given rectangle.

Specified by:

intersects in interface SpatialSearchTreeObject

Parameters:

r - the rectangle

Returns:

intersects?

isAlive

public boolean isAlive(int currTime)

Returns whether the object is alive or not.

Parameters:

currTime - the current time

Returns:

object alive?

isContainedBy

public boolean isContainedBy(MBR rect)

Tests whether the object is contained by a given rectangle or not.

Specified by:

isContainedBy in interface SpatialSearchTreeObject

Parameters:

rect - the rectangle

Returns:

is contained?

isContainedBy

public boolean isContainedBy(SpatialSearchTreeEntry entry)

Tests whether the object is contained by a given entry or not.

Specified by:

isContainedBy in interface SpatialSearchTreeObject

Parameters:

entry - the entry

Returns:

is contained?

isOfSameType

public boolean isOfSameType(SpatialSearchTreeObject obj)

Tests whether the object is of the same type as the given object or not.

Specified by:

isOfSameType in interface SpatialSearchTreeObject

Parameters:

obj - the other object

Returns:

is of same type?

isVisible

public boolean isVisible(double scale)

Test whether the external object is visible or not.

Parameters:

scale - the current actual scale (negative value => returns true)

Returns:

is visible?

isVisible

public boolean isVisible(int scale)

Tests whether the object is visible at a given scale or not.

Parameters:

scale - scale

Returns:

visible?

reportDeletedObject

public void reportDeletedObject(Reporter reporter,
                                int currTime)

Reports a deleted external object.

Parameters:

reporter - the reporter

currTime - the current time

reportMovingObject

public void reportMovingObject(Reporter reporter,
                               int currTime)

Reports a moving external object.

Parameters:

reporter - the reporter

currTime - the current time

reportNewObject

public void reportNewObject(Reporter reporter)

Reports a new external object.

Parameters:

reporter - the reporter

setMBR

public void setMBR(MBR newMBR)

Sets the MBR of the object.

Parameters:

newMBR - the new MNR