org.openstreetmap.josm.data

Class ViewportData

java.lang.Object

org.openstreetmap.josm.data.ViewportData

public class ViewportData
extends Object

Data class to keep viewport information. This can be either a combination of map center and map scale or a rectangle in east-north coordinate space. Either of those will be null, so the consumer of the ViewportData object has to check, which one is set.

Since:

5670 (creation), 6992 (extraction in this package)

Field Summary

Fields

Modifier and Type	Field and Description
private ProjectionBounds	bounds
private EastNorth	center
private Double	scale

Constructor Summary

Constructors

Constructor and Description
ViewportData(EastNorth center, Double scale) Constructs a new ViewportData.
ViewportData(ProjectionBounds bounds)

Method Summary

Modifier and Type	Method and Description
ProjectionBounds	getBounds() Return the bounds in east-north coordinate space.
EastNorth	getCenter() Return the projected coordinates of the map center
Double	getScale() Return the scale factor in east-/north-units per pixel.

Methods inherited from class java.lang.Object

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

Field Detail

center

private final EastNorth center

scale

private final Double scale

bounds

private final ProjectionBounds bounds

Constructor Detail

ViewportData

public ViewportData(EastNorth center,
                    Double scale)

Constructs a new ViewportData.

Parameters:

center - Projected coordinates of the map center

scale - Scale factor in east-/north-units per pixel

ViewportData

public ViewportData(ProjectionBounds bounds)

Method Detail

getCenter

public EastNorth getCenter()

Return the projected coordinates of the map center

Returns:

the center

getScale

public Double getScale()

Return the scale factor in east-/north-units per pixel.

Returns:

the scale

getBounds

public ProjectionBounds getBounds()

Return the bounds in east-north coordinate space.

Returns:

the bounds