public class DirectedEdgeStar extends Object
Modifier and Type | Field and Description |
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protected List |
outEdges
The underlying list of outgoing DirectedEdges
|
Constructor and Description |
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DirectedEdgeStar()
Constructs a DirectedEdgeStar with no edges.
|
Modifier and Type | Method and Description |
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void |
add(DirectedEdge de)
Adds a new member to this DirectedEdgeStar.
|
Coordinate |
getCoordinate()
Returns the coordinate for the node at wich this star is based
|
int |
getDegree()
Returns the number of edges around the Node associated with this DirectedEdgeStar.
|
List |
getEdges()
Returns the DirectedEdges, in ascending order by angle with the positive x-axis.
|
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.
|
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.
|
int |
getIndex(int i)
Returns value of i modulo the number of edges in this DirectedEdgeStar
(i.e.
|
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). |
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). |
Iterator |
iterator()
Returns an Iterator over the DirectedEdges, in ascending order by angle with the positive x-axis.
|
void |
remove(DirectedEdge de)
Drops a member of this DirectedEdgeStar.
|
protected List outEdges
public DirectedEdgeStar()
public void add(DirectedEdge de)
public void remove(DirectedEdge de)
public Iterator iterator()
public int getDegree()
public Coordinate getCoordinate()
public List getEdges()
public int getIndex(Edge edge)
public int getIndex(DirectedEdge dirEdge)
public int getIndex(int i)
i
- an integer (positive, negative or zero)public DirectedEdge getNextEdge(DirectedEdge dirEdge)
DirectedEdge
on the left-hand (CCW)
side of the given DirectedEdge
(which must be a member of this DirectedEdgeStar).public DirectedEdge getNextCWEdge(DirectedEdge dirEdge)
DirectedEdge
on the right-hand (CW)
side of the given DirectedEdge
(which must be a member of this DirectedEdgeStar).Copyright © 2016. All rights reserved.