Package org.locationtech.jtstest.testbuilder.topostretch

Class TopologyStretcher

java.lang.Object

org.locationtech.jtstest.testbuilder.topostretch.TopologyStretcher

public class TopologyStretcher
extends java.lang.Object

Stretches the vertices and segments of a @link Geometry} to make the topology more visible.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	TopologyStretcher.VertexInMaskCountCoordinateFilter

Field Summary

Fields

Modifier and Type	Field	Description
private Geometry[]	inputGeoms
private java.util.List	linestrings
private java.util.List[]	modifiedCoords
private double	stretchDistance

Constructor Summary

Constructors

Constructor	Description
TopologyStretcher(Geometry g)
TopologyStretcher(Geometry g1, Geometry g2)

Method Summary

Modifier and Type	Method	Description
private java.util.List	extractLineStrings(Geometry[] geom, Envelope mask)
private java.util.Map	getCoordinateMoves(java.util.List nearVerts)
java.util.List[]	getModifiedCoordinates()	Gets the Coordinates in each stretched geometry which were modified (if any).
int	numVerticesInMask(Envelope mask)
Geometry[]	stretch(double nearnessTol, double stretchDistance)
Geometry[]	stretch(double nearnessTol, double stretchDistance, Envelope mask)

Methods inherited from class java.lang.Object

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

Field Detail

stretchDistance

private double stretchDistance

inputGeoms

private Geometry[] inputGeoms

linestrings

private java.util.List linestrings

modifiedCoords

private java.util.List[] modifiedCoords

Constructor Detail

TopologyStretcher

public TopologyStretcher(Geometry g)

TopologyStretcher

public TopologyStretcher(Geometry g1,
                         Geometry g2)

Method Detail

numVerticesInMask

public int numVerticesInMask(Envelope mask)

stretch

public Geometry[] stretch(double nearnessTol,
                          double stretchDistance)

stretch

public Geometry[] stretch(double nearnessTol,
                          double stretchDistance,
                          Envelope mask)

getModifiedCoordinates

public java.util.List[] getModifiedCoordinates()

Gets the Coordinates in each stretched geometry which were modified (if any).

Returns:

lists of Coordinates, one for each input geometry

extractLineStrings

private java.util.List extractLineStrings(Geometry[] geom,
                                          Envelope mask)

getCoordinateMoves

private java.util.Map getCoordinateMoves(java.util.List nearVerts)