Class SinglePassNoder

java.lang.Object

org.locationtech.jts.noding.SinglePassNoder

All Implemented Interfaces:

Noder

Direct Known Subclasses:

MCIndexNoder, SimpleNoder

public abstract class SinglePassNoder
extends Object
implements Noder

Base class for Noders which make a single pass to find intersections. This allows using a custom SegmentIntersector (which for instance may simply identify intersections, rather than insert them).

Version:

1.7

Field Summary

Fields

Modifier and Type	Field	Description
protected SegmentIntersector	segInt

Constructor Summary

Constructors

Constructor	Description
SinglePassNoder()
SinglePassNoder(SegmentIntersector segInt)

Method Summary

Modifier and Type	Method	Description
abstract void	computeNodes(Collection segStrings)	Computes the noding for a collection of SegmentStrings.
abstract Collection	getNodedSubstrings()	Returns a Collection of fully noded SegmentStrings.
void	setSegmentIntersector(SegmentIntersector segInt)	Sets the SegmentIntersector to use with this noder.

Methods inherited from class Object

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

Field Details

segInt

protected SegmentIntersector segInt

Constructor Details

SinglePassNoder

public SinglePassNoder()

SinglePassNoder

public SinglePassNoder(SegmentIntersector segInt)

Method Details

setSegmentIntersector

public void setSegmentIntersector(SegmentIntersector segInt)

Sets the SegmentIntersector to use with this noder. A SegmentIntersector will normally add intersection nodes to the input segment strings, but it may not - it may simply record the presence of intersections. However, some Noders may require that intersections be added.

Parameters:

segInt -

computeNodes

public abstract void computeNodes(Collection segStrings)

Computes the noding for a collection of SegmentStrings. Some Noders may add all these nodes to the input SegmentStrings; others may only add some or none at all.

Specified by:

computeNodes in interface Noder

Parameters:

segStrings - a collection of SegmentStrings to node

getNodedSubstrings

public abstract Collection getNodedSubstrings()

Returns a Collection of fully noded SegmentStrings. The SegmentStrings have the same context as their parent.

Specified by:

getNodedSubstrings in interface Noder

Returns:

a Collection of SegmentStrings