org.deegree.model.spatialschema
Class EnvelopeImpl

java.lang.Object
  org.deegree.model.spatialschema.EnvelopeImpl

All Implemented Interfaces:

Serializable, Envelope

Direct Known Subclasses:

LayerBoundingBox

public class EnvelopeImpl
extends Object
implements Envelope, Serializable

a boundingbox as child of a Polygon isn't part of the iso19107 spec but it simplifies the geometry handling

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Version:

$Id: EnvelopeImpl.java 18195 2009-06-18 15:55:39Z mschneider $

Author:

Andreas Poth href="mailto:poth@lat-lon.de", Markus Bedel href="mailto:bedel@giub.uni-bonn.de"

See Also:

Serialized Form

Field Summary

protected CoordinateSystem	crs
protected Position	max
protected Position	min

Constructor Summary

protected	EnvelopeImpl() Creates a new EnvelopeImpl object.
protected	EnvelopeImpl(Position min, Position max) Creates a new EnvelopeImpl object.
protected	EnvelopeImpl(Position min, Position max, CoordinateSystem crs) Creates a new EnvelopeImpl object.

Method Summary

Object	clone()
boolean	contains(Envelope bb) returns true if all points of the submitted bounding box are within this bounding box
boolean	contains(Position point) returns true if the bounding box conatins the specified Point
Envelope	createIntersection(Envelope bb) returns a new Envelope object representing the intersection of this Envelope with the specified Envelope. * Note: If there is no intersection at all Envelope will be null.
boolean	equals(Object other) checks if this point is completly equal to the submitted geometry
void	expandToContain(Envelope other) ensures that the passed Envepole is contained within this.Envelope
Envelope	getBuffer(double b) creates a new envelope
Point	getCentroid() returns the centroid of an Envelope
CoordinateSystem	getCoordinateSystem() returns the spatial reference system of a geometry
double	getHeight() returns the height of bounding box
Position	getMax() returns the maximum coordinates of bounding box
Position	getMin() returns the minimum coordinates of bounding box
double	getWidth() returns the width of bounding box
boolean	intersects(Envelope bb) returns true if this envelope and the submitted intersects
Envelope	merge(Envelope envelope) merges two Envelops and returns the minimum envelope containing both.
String	toString()
Envelope	translate(double x, double y) translate a envelope in the direction defined by the two passed values and retiurns the resulting envelope

Methods inherited from class java.lang.Object

finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

max

protected Position max

min

protected Position min

crs

protected CoordinateSystem crs

Constructor Detail

EnvelopeImpl

protected EnvelopeImpl()

Creates a new EnvelopeImpl object.

EnvelopeImpl

protected EnvelopeImpl(Position min,
                       Position max)

Creates a new EnvelopeImpl object.

Parameters:

min -

max -

EnvelopeImpl

protected EnvelopeImpl(Position min,
                       Position max,
                       CoordinateSystem crs)

Creates a new EnvelopeImpl object.

Parameters:

min -

max -

crs -

Method Detail

clone

public Object clone()

Overrides:

clone in class Object

Returns:

a shallow copy of this Envelope

getCoordinateSystem

public CoordinateSystem getCoordinateSystem()

returns the spatial reference system of a geometry

Specified by:

getCoordinateSystem in interface Envelope

Returns:

the spatial reference system of a geometry

getMin

public Position getMin()

returns the minimum coordinates of bounding box

Specified by:

getMin in interface Envelope

Returns:

the minimum coordinates of bounding box

getMax

public Position getMax()

returns the maximum coordinates of bounding box

Specified by:

getMax in interface Envelope

Returns:

the maximum coordinates of bounding box

getWidth

public double getWidth()

returns the width of bounding box

Specified by:

getWidth in interface Envelope

Returns:

the width of bounding box

getHeight

public double getHeight()

returns the height of bounding box

Specified by:

getHeight in interface Envelope

Returns:

the height of bounding box

contains

public boolean contains(Position point)

returns true if the bounding box conatins the specified Point

Specified by:

contains in interface Envelope

Parameters:

point - the position to find

Returns:

true if the bounding box contains the submitted position

intersects

public boolean intersects(Envelope bb)

returns true if this envelope and the submitted intersects

Specified by:

intersects in interface Envelope

Parameters:

bb - another Envelope

Returns:

true if this envelope intersects the submitted envelope

contains

public boolean contains(Envelope bb)

returns true if all points of the submitted bounding box are within this bounding box

Specified by:

contains in interface Envelope

Parameters:

bb - another boundingbox

Returns:

true if all positions of the submitted bounding box are within this bounding box

createIntersection

public Envelope createIntersection(Envelope bb)

returns a new Envelope object representing the intersection of this Envelope with the specified Envelope. * Note: If there is no intersection at all Envelope will be null.

Specified by:

createIntersection in interface Envelope

Parameters:

bb - the Envelope to be intersected with this Envelope

Returns:

the largest Envelope contained in both the specified Envelope and in this Envelope.

equals

public boolean equals(Object other)

checks if this point is completly equal to the submitted geometry

Overrides:

equals in class Object

getBuffer

public Envelope getBuffer(double b)

Description copied from interface: Envelope

creates a new envelope

Specified by:

getBuffer in interface Envelope

Parameters:

b - an extra bound around the Envelope

Returns:

buffered box

merge

public Envelope merge(Envelope envelope)
               throws GeometryException

Description copied from interface: Envelope

merges two Envelops and returns the minimum envelope containing both.

Specified by:

merge in interface Envelope

Parameters:

envelope - another envelope to merge with this one

Returns:

the minimum envelope containing both.

Throws:

GeometryException - if the coordinatesystems are not equal

See Also:

Envelope.merge(org.deegree.model.spatialschema.Envelope)

expandToContain

public void expandToContain(Envelope other)

ensures that the passed Envepole is contained within this.Envelope

Specified by:

expandToContain in interface Envelope

Parameters:

other -

translate

public Envelope translate(double x,
                          double y)

translate a envelope in the direction defined by the two passed values and retiurns the resulting envelope

Specified by:

translate in interface Envelope

Parameters:

x -

y -

Returns:

the resulting translated Envelope

getCentroid

public Point getCentroid()

returns the centroid of an Envelope

Specified by:

getCentroid in interface Envelope

Returns:

centroid of an Envelope

toString

public String toString()

Overrides:

toString in class Object