Class LocationIndexOfPoint

Computes the LinearLocation of the point on a linear Geometrynearest a given Coordinate. The nearest point is not necessarily unique; this class always computes the nearest point closest to the start of the geometry.

Inheritance

object

LocationIndexOfPoint

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: NetTopologySuite.LinearReferencing

Assembly: NetTopologySuite.dll

Syntax

public class LocationIndexOfPoint

Constructors

LocationIndexOfPoint(Geometry)

Initializes a new instance of the LocationIndexOfPoint class.

Declaration

public LocationIndexOfPoint(Geometry linearGeom)

Parameters

Type	Name	Description
Geometry	linearGeom	A linear geometry.

Methods

IndexOf(Coordinate)

Find the nearest location along a linear Geometry to a given point.

Declaration

public LinearLocation IndexOf(Coordinate inputPt)

Parameters

Type	Name	Description
Coordinate	inputPt	The coordinate to locate.

Returns

Type	Description
LinearLocation	The location of the nearest point.

IndexOf(Geometry, Coordinate)

Declaration

public static LinearLocation IndexOf(Geometry linearGeom, Coordinate inputPt)

Parameters

Type	Name	Description
Geometry	linearGeom
Coordinate	inputPt

Returns

Type	Description
LinearLocation

IndexOfAfter(Coordinate, LinearLocation)

Find the nearest LinearLocation along the linear Geometry to a given Geometry after the specified minimum LinearLocation. If possible the location returned will be strictly greater than the minIndex. If this is not possible, the value returned will equal minIndex. (An example where this is not possible is when minIndex = [end of line] ).

Declaration

public LinearLocation IndexOfAfter(Coordinate inputPt, LinearLocation minIndex)

Parameters

Type	Name	Description
Coordinate	inputPt	The coordinate to locate.
LinearLocation	minIndex	The minimum location for the point location.

Returns

Type	Description
LinearLocation	The location of the nearest point.

IndexOfAfter(Geometry, Coordinate, LinearLocation)

Declaration

public static LinearLocation IndexOfAfter(Geometry linearGeom, Coordinate inputPt, LinearLocation minIndex)

Parameters

Type	Name	Description
Geometry	linearGeom
Coordinate	inputPt
LinearLocation	minIndex

Returns

Type	Description
LinearLocation