com.revolsys.jts.noding

Class BasicSegmentString

java.lang.Object

com.revolsys.jts.noding.BasicSegmentString

All Implemented Interfaces:

SegmentString

public class BasicSegmentString
extends Object
implements SegmentString

Represents a list of contiguous line segments, and supports noding the segments. The line segments are represented by an array of Coordinatess. Intended to optimize the noding of contiguous segments by reducing the number of allocated objects. SegmentStrings can carry a context object, which is useful for preserving topological or parentage information. All noded substrings are initialized with the same context object.

Version:

1.7

Constructor Summary

Constructors

Constructor and Description
BasicSegmentString(LineString points, Object data) Creates a new segment string from a list of vertices.

Method Summary

Methods

Modifier and Type	Method and Description
Point	getCoordinate(int i)
Object	getData() Gets the user-defined data for this segment string.
LineString	getPoints()
int	getSegmentOctant(int index) Gets the octant of the segment starting at vertex index.
boolean	isClosed()
void	setData(Object data) Sets the user-defined data for this segment string.
int	size()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

BasicSegmentString

public BasicSegmentString(LineString points,
                  Object data)

Creates a new segment string from a list of vertices.

Parameters:

points - the vertices of the segment string

data - the user-defined data of this segment string (may be null)

Method Detail

getCoordinate

public Point getCoordinate(int i)

Specified by:

getCoordinate in interface SegmentString

getData

public Object getData()

Gets the user-defined data for this segment string.

Specified by:

getData in interface SegmentString

Returns:

the user-defined data

getPoints

public LineString getPoints()

Specified by:

getPoints in interface SegmentString

getSegmentOctant

public int getSegmentOctant(int index)

Gets the octant of the segment starting at vertex index.

Parameters:

index - the index of the vertex starting the segment. Must not be the last index in the vertex list

Returns:

the octant of the segment at the vertex

isClosed

public boolean isClosed()

Specified by:

isClosed in interface SegmentString

setData

public void setData(Object data)

Sets the user-defined data for this segment string.

Specified by:

setData in interface SegmentString

Parameters:

data - an Object containing user-defined data

size

public int size()

Specified by:

size in interface SegmentString

toString

public String toString()

Overrides:

toString in class Object