Class SweepLineEvent

java.lang.Object

org.locationtech.jts.geomgraph.index.SweepLineEvent

All Implemented Interfaces:

Comparable

public class SweepLineEvent
extends Object
implements Comparable

Version:

1.7

Constructor Summary

Constructors

Constructor	Description
SweepLineEvent(double x, SweepLineEvent insertEvent)	Creates a DELETE event.
SweepLineEvent(Object label, double x, Object obj)	Creates an INSERT event.

Method Summary

Modifier and Type	Method	Description
int	compareTo(Object o)	Events are ordered first by their x-value, and then by their eventType.
int	getDeleteEventIndex()
SweepLineEvent	getInsertEvent()
Object	getObject()
boolean	isDelete()
boolean	isInsert()
boolean	isSameLabel(SweepLineEvent ev)
void	setDeleteEventIndex(int deleteEventIndex)

Methods inherited from class Object

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

Constructor Details

SweepLineEvent

public SweepLineEvent(Object label,
 double x,
 Object obj)

Creates an INSERT event.

Parameters:

label - the edge set label for this object

x - the event location

obj - the object being inserted

SweepLineEvent

public SweepLineEvent(double x,
 SweepLineEvent insertEvent)

Creates a DELETE event.

Parameters:

x - the event location

insertEvent - the corresponding INSERT event

Method Details

isInsert

public boolean isInsert()

isDelete

public boolean isDelete()

getInsertEvent

public SweepLineEvent getInsertEvent()

getDeleteEventIndex

public int getDeleteEventIndex()

setDeleteEventIndex

public void setDeleteEventIndex(int deleteEventIndex)

getObject

public Object getObject()

isSameLabel

public boolean isSameLabel(SweepLineEvent ev)

compareTo

public int compareTo(Object o)

Events are ordered first by their x-value, and then by their eventType. Insert events are sorted before Delete events, so that items whose Insert and Delete events occur at the same x-value will be correctly handled.

Specified by:

compareTo in interface Comparable