Package org.openstreetmap.josm.actions

Class SimplifyWayAction

java.lang.Object

javax.swing.AbstractAction

org.openstreetmap.josm.actions.JosmAction

org.openstreetmap.josm.actions.SimplifyWayAction

All Implemented Interfaces:

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

public class SimplifyWayAction
extends JosmAction

Delete unnecessary nodes from a way

Since:

2575

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	SimplifyWayAction.SimplifyChangeListener
private static class	SimplifyWayAction.SimplifyWayDataSelectionListener

Nested classes/interfaces inherited from class org.openstreetmap.josm.actions.JosmAction

JosmAction.ActiveLayerChangeAdapter, JosmAction.LayerChangeAdapter, JosmAction.SelectionChangeAdapter

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	Description
SimplifyWayAction()	Constructs a new SimplifyWayAction.

Method Summary

Modifier and Type	Method	Description
void	actionPerformed(java.awt.event.ActionEvent e)
protected void	alertSelectAtLeastOneWay()
static double	askSimplifyWays(java.lang.String text, boolean auto)	Asks the user for max-err value used to simplify ways, if not remembered before
static double	askSimplifyWays(java.util.List<Way> ways, java.lang.String text, boolean auto)	Asks the user for max-err value used to simplify ways, if not remembered before
private static double	askSimplifyWays(java.util.List<Way> ways, java.util.function.Supplier<java.lang.String> textSupplier, SimplifyWayAction.SimplifyWayDataSelectionListener listener, boolean auto)	Asks the user for max-err value used to simplify ways, if not remembered before
protected static void	buildSimplifiedNodeList(java.util.List<Node> wnew, int from, int to, double threshold, java.util.List<Node> simplifiedNodes)	Builds the simplified list of nodes for a way segment given by a lower index from and an upper index to.
private static SequenceCommand	buildSimplifyWaysCommand(java.util.List<Way> ways, double threshold)	Creates the commands to simplify the ways with the given threshold
protected boolean	confirmSimplifyManyWays(int numWays)
protected boolean	confirmWayWithNodesOutsideBoundingBox(java.util.List<? extends OsmPrimitive> primitives)
private static double	course(double lat1, double lon1, double lat2, double lon2)
static SequenceCommand	createSimplifyCommand(Way w)	Creates the SequenceCommand to simplify a way with default threshold.
static SequenceCommand	createSimplifyCommand(Way w, double threshold)	Creates the SequenceCommand to simplify a way with a given threshold.
private static SequenceCommand	createSimplifyCommand(Way w, double threshold, boolean deselect)	Creates the SequenceCommand to simplify a way with a given threshold.
private static double	dist(double lat1, double lon1, double lat2, double lon2)
private static java.util.Set<Node>	getMultiUseNodes(Way w)	Calculate a set of nodes which occurs more than once in the way
protected static boolean	isRequiredNode(Way way, Node node, java.util.Set<Node> multipleUseNodes)	Replies true if node is a required node which can't be removed in order to simplify the way.
static void	simplifyWays(java.util.List<Way> ways, double threshold)	Runs the commands to simplify the ways with the given threshold
static int	simplifyWaysCountNodesRemoved(java.util.List<Way> ways, double threshold)	Runs the commands to simplify the ways with the given threshold
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.
private static double	xtd(double lat1, double lon1, double lat2, double lon2, double lat3, double lon3)

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

buildActiveLayerChangeAdapter, buildLayerChangeAdapter, checkAndConfirmOutlyingOperation, destroy, getLayerManager, getShortcut, initEnabledState, installAdapters, listenToLayerChange, listenToSelectionChange, setHelpId, setToolbarId, setTooltip, updateEnabledStateOnCurrentSelection, updateEnabledStateOnCurrentSelection, updateEnabledStateOnModifiableSelection, waitFuture

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

Methods inherited from interface javax.swing.Action

accept

Constructor Detail

SimplifyWayAction

public SimplifyWayAction()

Constructs a new SimplifyWayAction.

Method Detail

confirmWayWithNodesOutsideBoundingBox

protected boolean confirmWayWithNodesOutsideBoundingBox(java.util.List<? extends OsmPrimitive> primitives)

alertSelectAtLeastOneWay

protected void alertSelectAtLeastOneWay()

confirmSimplifyManyWays

protected boolean confirmSimplifyManyWays(int numWays)

askSimplifyWays

public static double askSimplifyWays(java.lang.String text,
                                     boolean auto)

Asks the user for max-err value used to simplify ways, if not remembered before

Parameters:

text - the text being shown

auto - whether it's called automatically (conversion) or by the user

Returns:

the max-err value or -1 if canceled

Since:

15419

askSimplifyWays

public static double askSimplifyWays(java.util.List<Way> ways,
                                     java.lang.String text,
                                     boolean auto)

Asks the user for max-err value used to simplify ways, if not remembered before

Parameters:

ways - the ways that are being simplified (to show estimated number of nodes to be removed)

text - the text being shown

auto - whether it's called automatically (conversion) or by the user

Returns:

the max-err value or -1 if canceled

Since:

16566

askSimplifyWays

private static double askSimplifyWays(java.util.List<Way> ways,
                                      java.util.function.Supplier<java.lang.String> textSupplier,
                                      SimplifyWayAction.SimplifyWayDataSelectionListener listener,
                                      boolean auto)

Asks the user for max-err value used to simplify ways, if not remembered before

Parameters:

ways - the ways that are being simplified (to show estimated number of nodes to be removed)

textSupplier - the text being shown (called when the DataSet selection changes)

auto - whether it's called automatically (conversion) or by the user

listener - The dataset selection update listener

Returns:

the max-err value or -1 if canceled

actionPerformed

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

isRequiredNode

protected static boolean isRequiredNode(Way way,
                                        Node node,
                                        java.util.Set<Node> multipleUseNodes)

Replies true if node is a required node which can't be removed in order to simplify the way.

Parameters:

way - the way to be simplified

node - the node to check

multipleUseNodes - set of nodes which is used more than once in the way

Returns:

true if node is a required node which can't be removed in order to simplify the way.

getMultiUseNodes

private static java.util.Set<Node> getMultiUseNodes(Way w)

Calculate a set of nodes which occurs more than once in the way

Parameters:

w - the way

Returns:

a set of nodes which occurs more than once in the way

simplifyWaysCountNodesRemoved

public static int simplifyWaysCountNodesRemoved(java.util.List<Way> ways,
                                                double threshold)

Runs the commands to simplify the ways with the given threshold

Parameters:

ways - the ways to simplify

threshold - the max error threshold

Returns:

The number of nodes removed from the ways (does not double-count)

Since:

16566

simplifyWays

public static void simplifyWays(java.util.List<Way> ways,
                                double threshold)

Runs the commands to simplify the ways with the given threshold

Parameters:

ways - the ways to simplify

threshold - the max error threshold

Since:

15419

buildSimplifyWaysCommand

private static SequenceCommand buildSimplifyWaysCommand(java.util.List<Way> ways,
                                                        double threshold)

Creates the commands to simplify the ways with the given threshold

Parameters:

ways - the ways to simplify

threshold - the max error threshold

Returns:

The command to simplify ways

Since:

16566 (private)

createSimplifyCommand

public static SequenceCommand createSimplifyCommand(Way w)

Creates the SequenceCommand to simplify a way with default threshold.

Parameters:

w - the way to simplify

Returns:

The sequence of commands to run

Since:

15419

createSimplifyCommand

public static SequenceCommand createSimplifyCommand(Way w,
                                                    double threshold)

Creates the SequenceCommand to simplify a way with a given threshold.

Parameters:

w - the way to simplify

threshold - the max error threshold

Returns:

The sequence of commands to run

Since:

15419

createSimplifyCommand

private static SequenceCommand createSimplifyCommand(Way w,
                                                     double threshold,
                                                     boolean deselect)

Creates the SequenceCommand to simplify a way with a given threshold.

Parameters:

w - the way to simplify

threshold - the max error threshold

deselect - true if we want to deselect the deleted nodes

Returns:

The sequence of commands to run

buildSimplifiedNodeList

protected static void buildSimplifiedNodeList(java.util.List<Node> wnew,
                                              int from,
                                              int to,
                                              double threshold,
                                              java.util.List<Node> simplifiedNodes)

Builds the simplified list of nodes for a way segment given by a lower index from and an upper index to. Uses the Douglas-Peucker-Algorithm.

Parameters:

wnew - the way to simplify

from - the lower index

to - the upper index

threshold - the max error threshold

simplifiedNodes - list that will contain resulting nodes

dist

private static double dist(double lat1,
                           double lon1,
                           double lat2,
                           double lon2)

course

private static double course(double lat1,
                             double lon1,
                             double lat2,
                             double lon2)

xtd

private static double xtd(double lat1,
                          double lon1,
                          double lat2,
                          double lon2,
                          double lat3,
                          double lon3)

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(), JosmAction.listenToLayerChange()

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(), JosmAction.listenToSelectionChange()