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DirectedEdgeStar()
add(DirectedEdge): void
remove(DirectedEdge): void
iterator(): Iterator
getDegree(): int
getCoordinate(): Coordinate
getEdges(): List
getIndex(Edge): int
getIndex(DirectedEdge): int
getIndex(int): int
getNextEdge(DirectedEdge): DirectedEdge
getNextCWEdge(DirectedEdge): DirectedEdge
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Class DirectedEdgeStar

Hierarchy: Object , DirectedEdgeStar
public class DirectedEdgeStar
A sorted collection of DirectedEdges which leave a Node in a PlanarGraph.

Other

  • version: 1.7
public DirectedEdgeStar()
Constructs a DirectedEdgeStar with no edges.
public void add(DirectedEdge de)
Adds a new member to this DirectedEdgeStar.
public void remove(DirectedEdge de)
Drops a member of this DirectedEdgeStar.
public Iterator iterator()
Returns an Iterator over the DirectedEdges, in ascending order by angle with the positive x-axis.
public int getDegree()
Returns the number of edges around the Node associated with this DirectedEdgeStar.
public Coordinate getCoordinate()
Returns the coordinate for the node at which this star is based
public List getEdges()
Returns the DirectedEdges, in ascending order by angle with the positive x-axis.
public int getIndex(Edge edge)
Returns the zero-based index of the given Edge, after sorting in ascending order by angle with the positive x-axis.
public int getIndex(DirectedEdge dirEdge)
Returns the zero-based index of the given DirectedEdge, after sorting in ascending order by angle with the positive x-axis.
public int getIndex(int i)
Returns value of i modulo the number of edges in this DirectedEdgeStar (i.e. the remainder when i is divided by the number of edges)
Parameters:
i - i an integer (positive, negative or zero)
public DirectedEdge getNextEdge(DirectedEdge dirEdge)
Returns the DirectedEdge on the left-hand (CCW) side of the given DirectedEdge (which must be a member of this DirectedEdgeStar).
public DirectedEdge getNextCWEdge(DirectedEdge dirEdge)
Returns the DirectedEdge on the right-hand (CW) side of the given DirectedEdge (which must be a member of this DirectedEdgeStar).