Package org.openstreetmap.josm.data

Class ProjectionBounds

java.lang.Object

org.openstreetmap.josm.data.ProjectionBounds

public class ProjectionBounds
extends java.lang.Object

This is a simple data class for "rectangular" areas of the world, given in east/north min/max values.

Field Summary

Fields

Modifier and Type	Field	Description
double	maxEast	The maximum east coordinate.
double	maxNorth	The minimum north coordinate.
double	minEast	The minimum east coordinate.
double	minNorth	The minimum north coordinate.

Constructor Summary

Constructors

Constructor	Description
ProjectionBounds()	Construct uninitialized bounds.
ProjectionBounds(double minEast, double minNorth, double maxEast, double maxNorth)	Construct bounds out of two points.
ProjectionBounds(EastNorth p)	Construct bounds out of a single point.
ProjectionBounds(EastNorth center, double east, double north)	Construct bounds out of a center point and east/north dimensions.
ProjectionBounds(EastNorth min, EastNorth max)	Construct bounds out of two points.

Method Summary

Modifier and Type	Method	Description
boolean	contains(EastNorth en)	Check, if a point is within the bounds.
void	extend(EastNorth e)	Extends bounds to include point e.
void	extend(ProjectionBounds b)	Extends bounds to include bounds b.
EastNorth	getCenter()	Returns the center east/north.
private double	getDeltaEast()
private double	getDeltaNorth()
EastNorth	getMax()	Returns the max east/north.
EastNorth	getMin()	Returns the min east/north.
double	getScale(int width, int height)	Computes the scale of this bounds with respect to the given width/height.
boolean	hasExtend()	Determines if the bounds area is not null
boolean	intersects(ProjectionBounds b)	The two bounds intersect? Compared to java Shape.intersects, if does not use the interior but the closure.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

minEast

public double minEast

The minimum east coordinate.

minNorth

public double minNorth

The minimum north coordinate.

maxEast

public double maxEast

The maximum east coordinate.

maxNorth

public double maxNorth

The minimum north coordinate.

Constructor Detail

ProjectionBounds

public ProjectionBounds(EastNorth min,
                        EastNorth max)

Construct bounds out of two points.

Parameters:

min - min east/north

max - max east/north

ProjectionBounds

public ProjectionBounds(EastNorth p)

Construct bounds out of a single point.

Parameters:

p - east/north

ProjectionBounds

public ProjectionBounds(EastNorth center,
                        double east,
                        double north)

Construct bounds out of a center point and east/north dimensions.

Parameters:

center - center east/north

east - east dimension

north - north dimension

ProjectionBounds

public ProjectionBounds(double minEast,
                        double minNorth,
                        double maxEast,
                        double maxNorth)

Construct bounds out of two points.

Parameters:

minEast - min east

minNorth - min north

maxEast - max east

maxNorth - max north

ProjectionBounds

public ProjectionBounds()

Construct uninitialized bounds.

At least one call to extend(EastNorth) or extend(ProjectionBounds) is required immediately after construction to initialize the ProjectionBounds instance and make it valid.

Uninitialized ProjectionBounds must not be passed to other methods or used in any way other than initializing it.

Method Detail

extend

public void extend(EastNorth e)

Extends bounds to include point e.

Parameters:

e - east/north to include

extend

public void extend(ProjectionBounds b)

Extends bounds to include bounds b.

Parameters:

b - bounds to include

Since:

11774

getCenter

public EastNorth getCenter()

Returns the center east/north.

Returns:

the center east/north

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

intersects

public boolean intersects(ProjectionBounds b)

The two bounds intersect? Compared to java Shape.intersects, if does not use the interior but the closure. (">=" instead of ">")

Parameters:

b - projection bounds

Returns:

true if the two bounds intersect

contains

public boolean contains(EastNorth en)

Check, if a point is within the bounds.

Parameters:

en - the point

Returns:

true, if en is within the bounds

getMin

public EastNorth getMin()

Returns the min east/north.

Returns:

the min east/north

getMax

public EastNorth getMax()

Returns the max east/north.

Returns:

the max east/north

hasExtend

public boolean hasExtend()

Determines if the bounds area is not null

Returns:

true if the area is not null

getScale

public double getScale(int width,
                       int height)

Computes the scale of this bounds with respect to the given width/height.

Parameters:

width - the width

height - the height

Returns:

the computed scale

getDeltaNorth

private double getDeltaNorth()

getDeltaEast

private double getDeltaEast()