| java.lang.Object
 com.vividsolutions.jts.geomgraph.EdgeEndStar
com.vividsolutions.jts.geomgraph.DirectedEdgeStar
| DirectedEdgeStar | | public class DirectedEdgeStar extends EdgeEndStar (Code) | | A DirectedEdgeStar is an ordered list of outgoing DirectedEdges around a node.
It supports labelling the edges as well as linking the edges to form both
MaximalEdgeRings and MinimalEdgeRings.
version:
1.7 |
| DirectedEdgeStar | | public DirectedEdgeStar()(Code) | | |
| computeLabelling | | public void computeLabelling(GeometryGraph[] geom)(Code) | | Compute the labelling for all dirEdges in this star, as well
as the overall labelling
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| findCoveredLineEdges | | public void findCoveredLineEdges()(Code) | | Traverse the star of edges, maintaing the current location in the result
area at this node (if any).
If any L edges are found in the interior of the result, mark them as covered.
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| getOutgoingDegree | | public int getOutgoingDegree()(Code) | | |
| insert | | public void insert(EdgeEnd ee)(Code) | | Insert a directed edge in the list
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| linkAllDirectedEdges | | public void linkAllDirectedEdges()(Code) | | |
| linkMinimalDirectedEdges | | public void linkMinimalDirectedEdges(EdgeRing er)(Code) | | |
| linkResultDirectedEdges | | public void linkResultDirectedEdges()(Code) | | Traverse the star of DirectedEdges, linking the included edges together.
To link two dirEdges, the pointer for an incoming dirEdge
is set to the next outgoing edge.
DirEdges are only linked if:
- they belong to an area (i.e. they have sides)
- they are marked as being in the result
Edges are linked in CCW order (the order they are stored).
This means that rings have their face on the Right
(in other words,
the topological location of the face is given by the RHS label of the DirectedEdge)
PRECONDITION: No pair of dirEdges are both marked as being in the result
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| mergeSymLabels | | public void mergeSymLabels()(Code) | | For each dirEdge in the star,
merge the label from the sym dirEdge into the label
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| updateLabelling | | public void updateLabelling(Label nodeLabel)(Code) | | Update incomplete dirEdge labels from the labelling for the node
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