Class FastNodingValidator

Namespace

NetTopologySuite.Noding

Assembly

NetTopologySuite.dll

Validates that a collection of ISegmentStrings is correctly noded. Indexing is used to improve performance.

public class FastNodingValidator

Inheritance

object

FastNodingValidator

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Remarks

By default validation stops after a single non-noded intersection is detected. Alternatively, it can be requested to detect all intersections by using the FindAllIntersections property.

The validator does not check for topology collapse situations (e.g. where two segment strings are fully co-incident).

The validator checks for the following situations which indicated incorrect noding:

The client may either test the IsValid condition, or request that a suitable TopologyException be thrown.

Constructors

FastNodingValidator(IEnumerable<ISegmentString>)

Creates a new noding validator for a given set of linework.

public FastNodingValidator(IEnumerable<ISegmentString> segStrings)

Parameters

segStrings IEnumerable<ISegmentString>

A collection of ISegmentStrings

See Also

NodingValidator

Properties

FindAllIntersections

Gets or sets whether all intersections should be found.

public bool FindAllIntersections { get; set; }

Property Value

bool

See Also

NodingValidator

Intersections

Gets a list of all intersections found. Intersections are represented as Coordinates. List is empty if none were found.

public IList<Coordinate> Intersections { get; }

Property Value

IList<Coordinate>

See Also

NodingValidator

IsValid

Checks for an intersection and reports if one is found.

public bool IsValid { get; }

Property Value

bool

See Also

NodingValidator

Methods

CheckValid()

Checks for an intersection and throws a TopologyException if one is found.

public void CheckValid()

Exceptions

TopologyException

if an intersection is found

See Also

NodingValidator

ComputeIntersections(IEnumerable<ISegmentString>)

Gets a list of all intersections found. Intersections are represented as Coordinates. List is empty if none were found.

A collection of SegmentStrings a list of Coordinate

public static IList<Coordinate> ComputeIntersections(IEnumerable<ISegmentString> segStrings)

Parameters

segStrings IEnumerable<ISegmentString>

Returns

IList<Coordinate>

See Also

NodingValidator

GetErrorMessage()

Returns an error message indicating the segments containing the intersection.

public string GetErrorMessage()

Returns

string

an error message documenting the intersection location

See Also

NodingValidator

See Also

NodingValidator