Class DelaunayTriangulationBuilder

A utility class which creates Delaunay Triangulations from collections of points and extract the resulting triangulation edges or triangles as geometries.

Inheritance

object

DelaunayTriangulationBuilder

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: NetTopologySuite.Triangulate

Assembly: NetTopologySuite.dll

Syntax

public class DelaunayTriangulationBuilder

Properties

Tolerance

Sets the snapping tolerance which will be used to improved the robustness of the triangulation computation. A tolerance of 0.0 specifies that no snapping will take place.

Declaration

public double Tolerance { set; }

Property Value

Type	Description
double

Methods

Envelope(ICollection<Coordinate>)

Computes the Envelope(ICollection<Coordinate>) of a collection of Coordinates.

Declaration

public static Envelope Envelope(ICollection<Coordinate> coords)

Parameters

Type	Name	Description
ICollection<Coordinate>	coords	a List of Coordinates

Returns

Type	Description
Envelope	the envelope of the set of coordinates

ExtractUniqueCoordinates(Geometry)

Extracts the unique Coordinates from the given Geometry.

Declaration

public static CoordinateList ExtractUniqueCoordinates(Geometry geom)

Parameters

Type	Name	Description
Geometry	geom	the geometry to extract from

Returns

Type	Description
CoordinateList	a List of the unique Coordinates

GetEdges(GeometryFactory)

Gets the edges of the computed triangulation as a MultiLineString.

Declaration

public MultiLineString GetEdges(GeometryFactory geomFact)

Parameters

Type	Name	Description
GeometryFactory	geomFact	the geometry factory to use to create the output

Returns

Type	Description
MultiLineString	the edges of the triangulation

GetSubdivision()

Gets the QuadEdgeSubdivision which models the computed triangulation.

Declaration

public QuadEdgeSubdivision GetSubdivision()

Returns

Type	Description
QuadEdgeSubdivision	the subdivision containing the triangulation

GetTriangles(GeometryFactory)

Gets the faces of the computed triangulation as a GeometryCollection of NetTopologySuite.Triangulate.Polygon.

Declaration

public GeometryCollection GetTriangles(GeometryFactory geomFact)

Parameters

Type	Name	Description
GeometryFactory	geomFact	the geometry factory to use to create the output

Returns

Type	Description
GeometryCollection	the faces of the triangulation

SetSites(Geometry)

Sets the sites (vertices) which will be triangulated. All vertices of the given geometry will be used as sites.

Declaration

public void SetSites(Geometry geom)

Parameters

Type	Name	Description
Geometry	geom	the geometry from which the sites will be extracted.

SetSites(ICollection<Coordinate>)

Sets the sites (vertices) which will be triangulated from a collection of Coordinates.

Declaration

public void SetSites(ICollection<Coordinate> coords)

Parameters

Type	Name	Description
ICollection<Coordinate>	coords	a collection of Coordinates.

ToVertices(ICollection<Coordinate>)

Converts all Coordinates in a collection to Vertexes.

Declaration

public static IList<Vertex> ToVertices(ICollection<Coordinate> coords)

Parameters

Type	Name	Description
ICollection<Coordinate>	coords	the coordinates to convert

Returns

Type	Description
IList<Vertex>	a List of Vertex objects

Unique(Coordinate[])

Declaration

public static CoordinateList Unique(Coordinate[] coords)

Parameters

Type	Name	Description
Coordinate[]	coords

Returns

Type	Description
CoordinateList