Class SegmentIntersectionDetector

Detects and records an intersection between two ISegmentStrings, if one exists. Only a single intersection is recorded.

Inheritance

object

SegmentIntersectionDetector

Implements

ISegmentIntersector

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: NetTopologySuite.Noding

Assembly: NetTopologySuite.dll

Syntax

public class SegmentIntersectionDetector : ISegmentIntersector

Remarks

This strategy can be configured to search for proper intersections. In this case, the presence of any intersection will still be recorded, but searching will continue until either a proper intersection has been found or no intersections are detected.

Constructors

SegmentIntersectionDetector()

Creates an intersection finder using a RobustLineIntersector

Declaration

public SegmentIntersectionDetector()

SegmentIntersectionDetector(ElevationModel)

Creates an intersection finder using a RobustLineIntersector with an ElevationModel

Declaration

public SegmentIntersectionDetector(ElevationModel em)

Parameters

Type	Name	Description
ElevationModel	em	An elevation model. May be null

SegmentIntersectionDetector(LineIntersector)

Creates an intersection finder using a given LineIntersector

Declaration

public SegmentIntersectionDetector(LineIntersector li)

Parameters

Type	Name	Description
LineIntersector	li	The LineIntersector to use

Properties

FindAllIntersectionTypes

Gets or sets whether processing can terminate once any intersection is found.

Declaration

public bool FindAllIntersectionTypes { get; set; }

Property Value

Type	Description
bool

FindProper

Gets or sets whether processing must continue until a proper intersection is found

Declaration

public bool FindProper { get; set; }

Property Value

Type	Description
bool

HasIntersection

Tests whether an intersection was found.

Declaration

public bool HasIntersection { get; }

Property Value

Type	Description
bool

HasNonProperIntersection

Tests whether a non-proper intersection was found.

Declaration

public bool HasNonProperIntersection { get; }

Property Value

Type	Description
bool

HasProperIntersection

Tests whether a proper intersection was found.

Declaration

public bool HasProperIntersection { get; }

Property Value

Type	Description
bool

Intersection

Gets the computed location of the intersection. Due to round-off, the location may not be exact.

Declaration

public Coordinate Intersection { get; }

Property Value

Type	Description
Coordinate

IntersectionSegments

Gets the endpoints of the intersecting segments.

Declaration

public Coordinate[] IntersectionSegments { get; }

Property Value

Type	Description
Coordinate[]

Remarks

An array of the segment endpoints (p00, p01, p10, p11)

IsDone

Tests whether processing can terminate, because all required information has been obtained (e.g. an intersection of the desired type has been detected).

Declaration

public bool IsDone { get; }

Property Value

Type	Description
bool

Methods

ProcessIntersections(ISegmentString, int, ISegmentString, int)

This method is called by clients of the ISegmentIntersector class to process intersections for two segments of the ISegmentStrings being intersected.

Declaration

public void ProcessIntersections(ISegmentString e0, int segIndex0, ISegmentString e1, int segIndex1)

Parameters

Type	Name	Description
ISegmentString	e0
int	segIndex0
ISegmentString	e1
int	segIndex1

Remarks

Note that some clients (such as MonotoneChains) may optimize away this call for segment pairs which they have determined do not intersect (e.g. by an disjoint envelope test).

Implements

ISegmentIntersector