Class EdgeIntersectionList

java.lang.Object
org.locationtech.jts.geomgraph.EdgeIntersectionList

public class EdgeIntersectionList extends Object
A list of edge intersections along an Edge. Implements splitting an edge with intersections into multiple resultant edges.
Version:
1.7
  • Field Details

    • nodeMap

      private Map nodeMap
    • edge

      Edge edge
  • Constructor Details

    • EdgeIntersectionList

      public EdgeIntersectionList(Edge edge)
  • Method Details

    • add

      public EdgeIntersection add(Coordinate intPt, int segmentIndex, double dist)
      Adds an intersection into the list, if it isn't already there. The input segmentIndex and dist are expected to be normalized.
      Returns:
      the EdgeIntersection found or added
    • iterator

      public Iterator iterator()
      Returns an iterator of EdgeIntersections
      Returns:
      an Iterator of EdgeIntersections
    • isIntersection

      public boolean isIntersection(Coordinate pt)
      Tests if the given point is an edge intersection
      Parameters:
      pt - the point to test
      Returns:
      true if the point is an intersection
    • addEndpoints

      public void addEndpoints()
      Adds entries for the first and last points of the edge to the list
    • addSplitEdges

      public void addSplitEdges(List edgeList)
      Creates new edges for all the edges that the intersections in this list split the parent edge into. Adds the edges to the input list (this is so a single list can be used to accumulate all split edges for a Geometry).
      Parameters:
      edgeList - a list of EdgeIntersections
    • createSplitEdge

      Edge createSplitEdge(EdgeIntersection ei0, EdgeIntersection ei1)
      Create a new "split edge" with the section of points between (and including) the two intersections. The label for the new edge is the same as the label for the parent edge.
    • print

      public void print(PrintStream out)