Package org.locationtech.jtstest.function

Class NodingFunctions

java.lang.Object

org.locationtech.jtstest.function.NodingFunctions

public class NodingFunctions
extends java.lang.Object

Constructor Summary

Constructors

Constructor	Description
NodingFunctions()

Method Summary

Modifier and Type	Method	Description
private static java.util.List	createSegmentStrings(Geometry geom)
static Geometry	findNodePoints(Geometry geom)
static Geometry	findSingleNodePoint(Geometry geom)
static int	interiorIntersectionCount(Geometry geom)
static boolean	isNodingValid(Geometry geom)
static Geometry	MCIndexNoding(Geometry geom)
static Geometry	MCIndexNodingWithPrecision(Geometry geom, double scaleFactor)
static Geometry	scaledNoding(Geometry geom, double scaleFactor)	Runs a ScaledNoder on input.
static Geometry	snapRoundWithPointwisePrecisionReduction(Geometry geom, double scaleFactor)	Reduces precision pointwise, then snap-rounds.

Methods inherited from class java.lang.Object

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

Constructor Detail

NodingFunctions

public NodingFunctions()

Method Detail

snapRoundWithPointwisePrecisionReduction

public static Geometry snapRoundWithPointwisePrecisionReduction(Geometry geom,
                                                                double scaleFactor)

Reduces precision pointwise, then snap-rounds. Note that output set may not contain non-unique linework (and thus cannot be used as input to Polygonizer directly). UnaryUnion is one way to make the linework unique.

Parameters:

geom - a geometry containing linework to node

scaleFactor - the precision model scale factor to use

Returns:

the noded, snap-rounded linework

isNodingValid

public static boolean isNodingValid(Geometry geom)

findSingleNodePoint

public static Geometry findSingleNodePoint(Geometry geom)

findNodePoints

public static Geometry findNodePoints(Geometry geom)

interiorIntersectionCount

public static int interiorIntersectionCount(Geometry geom)

MCIndexNodingWithPrecision

public static Geometry MCIndexNodingWithPrecision(Geometry geom,
                                                  double scaleFactor)

MCIndexNoding

public static Geometry MCIndexNoding(Geometry geom)

scaledNoding

public static Geometry scaledNoding(Geometry geom,
                                    double scaleFactor)

Runs a ScaledNoder on input. Input vertices should be rounded to precision model.

Parameters:

geom -

scaleFactor -

Returns:

the noded geometry

createSegmentStrings

private static java.util.List createSegmentStrings(Geometry geom)