org.openstreetmap.josm.actions

Class CreateCircleAction

java.lang.Object

javax.swing.AbstractAction

org.openstreetmap.josm.actions.JosmAction

org.openstreetmap.josm.actions.CreateCircleAction

All Implemented Interfaces:

java.awt.event.ActionListener, java.io.Serializable, java.lang.Cloneable, java.util.EventListener, javax.swing.Action, Destroyable

public final class CreateCircleAction
extends JosmAction

- Create a new circle from two selected nodes or a way with 2 nodes which represent the diameter of the circle. - Create a new circle from three selected nodes--or a way with 3 nodes. - Useful for roundabouts Notes: * If a way is selected, it is changed. If nodes are selected a new way is created. So if you've got a way with nodes it makes a difference between running this on the way or the nodes! * The existing nodes are retained, and additional nodes are inserted regularly to achieve the desired number of nodes (`createcircle.nodecount`). BTW: Someone might want to implement projection corrections for this...

Since:

996

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	CreateCircleAction.PolarNode Class designed to create a couple between a node and its angle relative to the center of the circle.
private static class	CreateCircleAction.PolarNodeComparator Comparator used to order PolarNode relative to their angle.

Field Summary

Fields inherited from class org.openstreetmap.josm.actions.JosmAction

sc

Fields inherited from class javax.swing.AbstractAction

changeSupport, enabled

Fields inherited from interface javax.swing.Action

ACCELERATOR_KEY, ACTION_COMMAND_KEY, DEFAULT, DISPLAYED_MNEMONIC_INDEX_KEY, LARGE_ICON_KEY, LONG_DESCRIPTION, MNEMONIC_KEY, NAME, SELECTED_KEY, SHORT_DESCRIPTION, SMALL_ICON

Constructor Summary

Constructors

Constructor and Description
CreateCircleAction() Constructs a new CreateCircleAction.

Method Summary

Modifier and Type	Method and Description
void	actionPerformed(java.awt.event.ActionEvent e)
private int[]	distributeNodes(CreateCircleAction.PolarNode[] angles, int nodesCount) Distributes nodes according to the algorithm of election with largest remainder.
private static void	notifyNodesNotOnCircle()
protected void	updateEnabledState() Override in subclasses to update the enabled state of the action when something in the JOSM state changes, i.e.
protected void	updateEnabledState(java.util.Collection<? extends OsmPrimitive> selection) Override in subclasses to update the enabled state of the action if the collection of selected primitives changes.

Methods inherited from class org.openstreetmap.josm.actions.JosmAction

destroy, getCurrentDataSet, getEditLayer, getShortcut, initEnabledState, installAdapters, setTooltip

Methods inherited from class javax.swing.AbstractAction

addPropertyChangeListener, clone, firePropertyChange, getKeys, getPropertyChangeListeners, getValue, isEnabled, putValue, removePropertyChangeListener, setEnabled

Methods inherited from class java.lang.Object

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

Constructor Detail

CreateCircleAction

public CreateCircleAction()

Constructs a new CreateCircleAction.

Method Detail

distributeNodes

private int[] distributeNodes(CreateCircleAction.PolarNode[] angles,
                              int nodesCount)

Distributes nodes according to the algorithm of election with largest remainder.

Parameters:

angles - Array of PolarNode ordered by increasing angles

nodesCount - Number of nodes to be distributed

Returns:

Array of number of nodes to put in each arc

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent e)

notifyNodesNotOnCircle

private static void notifyNodesNotOnCircle()

updateEnabledState

protected void updateEnabledState()

Description copied from class: JosmAction

Override in subclasses to update the enabled state of the action when something in the JOSM state changes, i.e. when a layer is removed or added. See JosmAction.updateEnabledState(Collection) to respond to changes in the collection of selected primitives. Default behavior is empty.

Overrides:

updateEnabledState in class JosmAction

See Also:

JosmAction.updateEnabledState(Collection), JosmAction.initEnabledState()

updateEnabledState

protected void updateEnabledState(java.util.Collection<? extends OsmPrimitive> selection)

Description copied from class: JosmAction

Override in subclasses to update the enabled state of the action if the collection of selected primitives changes. This method is called with the new selection.

Overrides:

updateEnabledState in class JosmAction

Parameters:

selection - the collection of selected primitives; may be empty, but not null

See Also:

JosmAction.updateEnabledState(), JosmAction.initEnabledState()