com.vividsolutions.jts.geomgraph.index
Class SegmentIntersector
java.lang.Object
com.vividsolutions.jts.geomgraph.index.SegmentIntersector
public class SegmentIntersector
- extends java.lang.Object
Computes the intersection of line segments,
and adds the intersection to the edges containing the segments.
- Version:
- 1.7
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
numTests
public int numTests
SegmentIntersector
public SegmentIntersector(LineIntersector li,
boolean includeProper,
boolean recordIsolated)
isAdjacentSegments
public static boolean isAdjacentSegments(int i1,
int i2)
setBoundaryNodes
public void setBoundaryNodes(java.util.Collection bdyNodes0,
java.util.Collection bdyNodes1)
getProperIntersectionPoint
public Coordinate getProperIntersectionPoint()
- Returns:
- the proper intersection point, or
null
if none was found
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.
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.
addIntersections
public void 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.
Note that clients (such as MonotoneChainEdges) may choose not to intersect
certain pairs of segments for efficiency reasons.