org.openstreetmap.josm.command

Class RotateCommand

java.lang.Object

org.openstreetmap.josm.command.PseudoCommand

org.openstreetmap.josm.command.Command

org.openstreetmap.josm.command.TransformNodesCommand

org.openstreetmap.josm.command.RotateCommand

public class RotateCommand
extends TransformNodesCommand

RotateCommand rotates a number of objects around their centre.

Nested Class Summary

Nested classes/interfaces inherited from class org.openstreetmap.josm.command.Command

Command.OldNodeState

Field Summary

Fields

Modifier and Type	Field and Description
private EastNorth	pivot Pivot point
private double	rotationAngle computed rotation angle between starting click and current mouse pos
private double	startAngle angle of rotation starting click to pivot

Fields inherited from class org.openstreetmap.josm.command.TransformNodesCommand

nodes, oldStates

Constructor Summary

Constructors

Constructor and Description
RotateCommand(java.util.Collection<OsmPrimitive> objects, EastNorth currentEN) Creates a RotateCommand.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
protected double	getAngle(EastNorth currentEN) Get angle between the horizontal axis and the line formed by the pivot and given point.
java.lang.String	getDescriptionText() Provides a description text representing this command.
void	handleEvent(EastNorth currentEN) Compute new rotation angle and transform nodes accordingly.
int	hashCode()
protected void	transformNodes() Rotate nodes.

Methods inherited from class org.openstreetmap.josm.command.TransformNodesCommand

executeCommand, fillModifiedData, flagNodesAsModified, getDescriptionIcon, getNodesCenter, getParticipatingPrimitives, getTransformedNodes, storeOldState, undoCommand

Methods inherited from class org.openstreetmap.josm.command.Command

checkAndConfirmOutlyingOperation, getAffectedDataSet, getLayer, getOrig, invalidateAffectedLayers, invalidBecauselayerRemoved

Methods inherited from class org.openstreetmap.josm.command.PseudoCommand

getChildren

Methods inherited from class java.lang.Object

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

Field Detail

pivot

private final EastNorth pivot

Pivot point

startAngle

private final double startAngle

angle of rotation starting click to pivot

rotationAngle

private double rotationAngle

computed rotation angle between starting click and current mouse pos

Constructor Detail

RotateCommand

public RotateCommand(java.util.Collection<OsmPrimitive> objects,
                     EastNorth currentEN)

Creates a RotateCommand. Assign the initial object set, compute pivot point and inital rotation angle.

Parameters:

objects - objects to fetch nodes from

currentEN - cuurent eats/north

Method Detail

getAngle

protected final double getAngle(EastNorth currentEN)

Get angle between the horizontal axis and the line formed by the pivot and given point.

Parameters:

currentEN - cuurent eats/north

Returns:

angle between the horizontal axis and the line formed by the pivot and given point

handleEvent

public final void handleEvent(EastNorth currentEN)

Compute new rotation angle and transform nodes accordingly.

Specified by:

handleEvent in class TransformNodesCommand

Parameters:

currentEN - the current world position of the mouse

transformNodes

protected void transformNodes()

Rotate nodes.

Specified by:

transformNodes in class TransformNodesCommand

getDescriptionText

public java.lang.String getDescriptionText()

Description copied from class: PseudoCommand

Provides a description text representing this command.

Overrides:

getDescriptionText in class TransformNodesCommand

Returns:

description text representing this command

hashCode

public int hashCode()

Overrides:

hashCode in class TransformNodesCommand

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class TransformNodesCommand