org.openstreetmap.josm.gui.layer.imagery

Class TileAnchor

java.lang.Object

org.openstreetmap.josm.gui.layer.imagery.TileAnchor

public class TileAnchor
extends java.lang.Object

Class that fixes the position of a tile in a given coordinate space. This is done by storing the coordinates of the tile origin and the opposite tile corner.

It may represent a reprojected tile, i.e. the tile is rotated / deformed in an arbitrary way. In general, the tile origin cannot be expected to be the upper left corner of the rectangle that is spanned by the 2 points.

The coordinate space may be

• pixel coordinates of the image file
• projected coordinates (east / north)
• screen pixel coordinates

Since:

11846

Field Summary

Fields

Modifier and Type	Field and Description
protected java.awt.geom.Point2D	nextTileOrigin
protected java.awt.geom.Point2D	tileOrigin

Constructor Summary

Constructors

Constructor and Description
TileAnchor(IProjected tileOrigin, IProjected nextTileOrigin) Constructs a new TileAnchor.
TileAnchor(java.awt.geom.Point2D tileOrigin, java.awt.geom.Point2D nextTileOrigin) Create a new tile anchor.

Method Summary

Modifier and Type	Method and Description
java.awt.geom.AffineTransform	convert(TileAnchor other) Create a transformation that converts points from this coordinate space to another coordinate space.
java.awt.geom.Point2D	getNextTileOrigin() Returns the position of the opposite tile corner.
java.awt.geom.Point2D	getTileOrigin() Returns the position of the tile origin.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

tileOrigin

protected final java.awt.geom.Point2D tileOrigin

nextTileOrigin

protected final java.awt.geom.Point2D nextTileOrigin

Constructor Detail

TileAnchor

public TileAnchor(java.awt.geom.Point2D tileOrigin,
                  java.awt.geom.Point2D nextTileOrigin)

Create a new tile anchor.

Parameters:

tileOrigin - position of the tile origin

nextTileOrigin - position of the opposite tile corner, i.e. the origin of the tile with index (x+1,y+1), when current tile has index (x,y)

TileAnchor

public TileAnchor(IProjected tileOrigin,
                  IProjected nextTileOrigin)

Constructs a new TileAnchor.

Parameters:

tileOrigin - position of the tile origin

nextTileOrigin - position of the opposite tile corner, i.e. the origin of the tile with index (x+1,y+1), when current tile has index (x,y)

Method Detail

getTileOrigin

public java.awt.geom.Point2D getTileOrigin()

Returns the position of the tile origin.

Returns:

the position of the tile origin

getNextTileOrigin

public java.awt.geom.Point2D getNextTileOrigin()

Returns the position of the opposite tile corner.

Returns:

the position of the opposite tile corner, i.e. the origin of the tile with index (x+1,y+1), when current tile has index (x,y)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

convert

public java.awt.geom.AffineTransform convert(TileAnchor other)

Create a transformation that converts points from this coordinate space to another coordinate space.

Parameters:

other - tile anchor of the tile in the target coordinate space

Returns:

affine transformation from this coordinate space to the target coordinate space