Class SegmentIntersector
java.lang.Object
org.locationtech.jts.geomgraph.index.SegmentIntersector
Computes the intersection of line segments,
and adds the intersection to the edges containing the segments.
- Version:
- 1.7
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Field Summary
Fields -
Constructor Summary
ConstructorsConstructorDescriptionSegmentIntersector
(LineIntersector li, boolean includeProper, boolean recordIsolated) -
Method Summary
Modifier and TypeMethodDescriptionvoid
addIntersections
(Edge e0, int segIndex0, Edge e1, int segIndex1) This method is called by clients of the EdgeIntersector class to test for and add intersections for two segments of the edges being intersected.boolean
boolean
A proper interior intersection is a proper intersection which is not contained in the set of boundary nodes set for this SegmentIntersector.boolean
A proper intersection is an intersection which is interior to at least two line segments.static boolean
isAdjacentSegments
(int i1, int i2) boolean
isDone()
void
setBoundaryNodes
(Collection bdyNodes0, Collection bdyNodes1)
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Field Details
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numTests
public int numTests
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Constructor Details
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SegmentIntersector
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Method Details
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isAdjacentSegments
public static boolean isAdjacentSegments(int i1, int i2) -
setBoundaryNodes
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isDone
public boolean isDone() -
getProperIntersectionPoint
- Returns:
- the proper intersection point, or
null
if none was found
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hasIntersection
public boolean hasIntersection() -
hasProperIntersection
public boolean 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.- Returns:
- indicates a proper intersection with an interior to at least two line segments
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hasProperInteriorIntersection
public boolean hasProperInteriorIntersection()A proper interior intersection is a proper intersection which is not contained in the set of boundary nodes set for this SegmentIntersector.- Returns:
- indicates a proper interior intersection
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addIntersections
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.
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