Class SegmentIntersector

Computes the intersection of line segments, and adds the intersection to the edges containing the segments.

Inheritance
Object
SegmentIntersector
Inherited Members
Namespace: NetTopologySuite.GeometriesGraph.Index
Assembly: NetTopologySuite.dll
Syntax
public class SegmentIntersector

Constructors

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SegmentIntersector(LineIntersector, Boolean, Boolean)

Declaration
public SegmentIntersector(LineIntersector li, bool includeProper, bool recordIsolated)
Parameters
Type Name Description
LineIntersector li
Boolean includeProper
Boolean recordIsolated

Fields

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NumTests

Testing only.

Declaration
public int NumTests
Field Value
Type Description
Int32

Properties

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HasIntersection

Declaration
public bool HasIntersection { get; }
Property Value
Type Description
Boolean
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HasProperInteriorIntersection

A proper interior intersection is a proper intersection which is not contained in the set of boundary nodes set for this SegmentIntersector.

Declaration
public bool HasProperInteriorIntersection { get; }
Property Value
Type Description
Boolean

Indicates a proper interior intersection
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HasProperIntersection

A proper intersection is an intersection which is interior to at least two line segments. Note that a proper intersection is not necessarily in the interior of the entire Geometry, since another edge may have an endpoint equal to the intersection, which according to SFS semantics can result in the point being on the Boundary of the Geometry.

Declaration
public bool HasProperIntersection { get; }
Property Value
Type Description
Boolean

Indicates a proper intersection with an interior to at least two line segments
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IsDone

Gets a value indicating that the segment intersector is finished.

Declaration
public bool IsDone { get; }
Property Value
Type Description
Boolean
Remarks

Always returns false

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IsDoneIfProperInt

Sets a flag if the segment intersector is done when a proper intersection has been found.

Declaration
[Obsolete("Not used anymore, will be removed in a later version")]
public bool IsDoneIfProperInt { set; }
Property Value
Type Description
Boolean
Remarks

Has no effect anymore.

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ProperIntersectionPoint

Declaration
public Coordinate ProperIntersectionPoint { get; }
Property Value
Type Description
Coordinate

The proper intersection point, or null if none was found.

Methods

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AddIntersections(Edge, Int32, Edge, Int32)

This method is called by clients of the EdgeIntersector class to test for and add intersections for two segments of the edges being intersected. Note that clients (such as MonotoneChainEdges) may choose not to intersect certain pairs of segments for efficiency reasons.

Declaration
public void AddIntersections(Edge e0, int segIndex0, Edge e1, int segIndex1)
Parameters
Type Name Description
Edge e0
Int32 segIndex0
Edge e1
Int32 segIndex1
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IsAdjacentSegments(Int32, Int32)

Declaration
public static bool IsAdjacentSegments(int i1, int i2)
Parameters
Type Name Description
Int32 i1
Int32 i2
Returns
Type Description
Boolean
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SetBoundaryNodes(IList<Node>, IList<Node>)

Declaration
public void SetBoundaryNodes(IList<Node> bdyNodes0, IList<Node> bdyNodes1)
Parameters
Type Name Description
IList<Node> bdyNodes0
IList<Node> bdyNodes1