org.locationtech.jts.operation.distance

Class FacetSequence

java.lang.Object

org.locationtech.jts.operation.distance.FacetSequence

public class FacetSequence
extends Object

Represents a sequence of facets (points or line segments) of a Geometry specified by a subsequence of a CoordinateSequence.

Author:

Martin Davis

Constructor Summary

Constructors

Constructor and Description
FacetSequence(CoordinateSequence pts, int start) Creates a new sequence for a single point from a CoordinateSequence.
FacetSequence(CoordinateSequence pts, int start, int end) Creates a new sequence of facets based on a CoordinateSequence.
FacetSequence(Geometry geom, CoordinateSequence pts, int start, int end) Creates a new sequence of facets based on a CoordinateSequence contained in the given Geometry.

Method Summary

Modifier and Type	Method and Description
double	distance(FacetSequence facetSeq) Computes the distance between this and another FacetSequence.
Coordinate	getCoordinate(int index)
Envelope	getEnvelope()
boolean	isPoint()
GeometryLocation[]	nearestLocations(FacetSequence facetSeq) Computes the locations of the nearest points between this sequence and another sequence.
int	size()
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FacetSequence

public FacetSequence(Geometry geom,
                     CoordinateSequence pts,
                     int start,
                     int end)

Creates a new sequence of facets based on a CoordinateSequence contained in the given Geometry.

Parameters:

geom - the geometry containing the facets

pts - the sequence containing the facet points

start - the index of the start point

end - the index of the end point + 1

FacetSequence

public FacetSequence(CoordinateSequence pts,
                     int start,
                     int end)

Creates a new sequence of facets based on a CoordinateSequence.

Parameters:

pts - the sequence containing the facet points

start - the index of the start point

end - the index of the end point + 1

FacetSequence

public FacetSequence(CoordinateSequence pts,
                     int start)

Creates a new sequence for a single point from a CoordinateSequence.

Parameters:

pts - the sequence containing the facet point

start - the index of the point

Method Detail

getEnvelope

public Envelope getEnvelope()

size

public int size()

getCoordinate

public Coordinate getCoordinate(int index)

isPoint

public boolean isPoint()

distance

public double distance(FacetSequence facetSeq)

Computes the distance between this and another FacetSequence.

Parameters:

facetSeq - the sequence to compute the distance to

Returns:

the minimum distance between the sequences

nearestLocations

public GeometryLocation[] nearestLocations(FacetSequence facetSeq)

Computes the locations of the nearest points between this sequence and another sequence. The locations are presented in the same order as the input sequences.

Returns:

a pair of GeometryLocations for the nearest points

toString

public String toString()

Overrides:

toString in class Object