Class TreeLayout<V,E>
- java.lang.Object
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- edu.uci.ics.jung.algorithms.layout.TreeLayout<V,E>
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- All Implemented Interfaces:
Layout<V,E>
,org.apache.commons.collections4.Transformer<V,java.awt.geom.Point2D>
- Direct Known Subclasses:
BalloonLayout
,RadialTreeLayout
public class TreeLayout<V,E> extends java.lang.Object implements Layout<V,E>
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Field Summary
Fields Modifier and Type Field Description protected java.util.Set<V>
alreadyDone
protected java.util.Map<V,java.lang.Integer>
basePositions
static int
DEFAULT_DISTX
The default horizontal vertex spacing.static int
DEFAULT_DISTY
The default vertical vertex spacing.protected int
distX
The horizontal vertex spacing.protected int
distY
The vertical vertex spacing.protected edu.uci.ics.jung.graph.Forest<V,E>
graph
protected java.util.Map<V,java.awt.geom.Point2D>
locations
protected java.awt.Point
m_currentPoint
protected java.awt.Dimension
size
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Constructor Summary
Constructors Constructor Description TreeLayout(edu.uci.ics.jung.graph.Forest<V,E> g)
Creates an instance for the specified graph with default X and Y distances.TreeLayout(edu.uci.ics.jung.graph.Forest<V,E> g, int distx)
Creates an instance for the specified graph and X distance with default Y distance.TreeLayout(edu.uci.ics.jung.graph.Forest<V,E> g, int distx, int disty)
Creates an instance for the specified graph, X distance, and Y distance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected void
buildTree()
protected void
buildTree(V v, int x)
java.awt.geom.Point2D
getCenter()
Returns the center of this layout's area.edu.uci.ics.jung.graph.Graph<V,E>
getGraph()
Returns the full graph (the one that was passed in at construction time) that this Layout refers to.java.awt.Dimension
getSize()
Returns the current size of the visualization's space.void
initialize()
Initializes fields in the node that may not have been set during the constructor.boolean
isLocked(V v)
Returnstrue
if the position of vertexv
is locked.void
lock(V v, boolean state)
Sets a flag which fixes this vertex in place.void
reset()
protected void
setCurrentPositionFor(V vertex)
void
setGraph(edu.uci.ics.jung.graph.Graph<V,E> graph)
setter for graphvoid
setInitializer(org.apache.commons.collections4.Transformer<V,java.awt.geom.Point2D> initializer)
provides initial locations for all vertices.void
setLocation(V v, java.awt.geom.Point2D location)
set the location of a vertexvoid
setSize(java.awt.Dimension size)
This method is not supported by this class.java.awt.geom.Point2D
transform(V v)
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Field Detail
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size
protected java.awt.Dimension size
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basePositions
protected java.util.Map<V,java.lang.Integer> basePositions
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locations
protected java.util.Map<V,java.awt.geom.Point2D> locations
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alreadyDone
protected transient java.util.Set<V> alreadyDone
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DEFAULT_DISTX
public static int DEFAULT_DISTX
The default horizontal vertex spacing. Initialized to 50.
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DEFAULT_DISTY
public static int DEFAULT_DISTY
The default vertical vertex spacing. Initialized to 50.
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distX
protected int distX
The horizontal vertex spacing. Defaults toDEFAULT_XDIST
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distY
protected int distY
The vertical vertex spacing. Defaults toDEFAULT_YDIST
.
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m_currentPoint
protected transient java.awt.Point m_currentPoint
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Constructor Detail
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TreeLayout
public TreeLayout(edu.uci.ics.jung.graph.Forest<V,E> g)
Creates an instance for the specified graph with default X and Y distances.
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TreeLayout
public TreeLayout(edu.uci.ics.jung.graph.Forest<V,E> g, int distx)
Creates an instance for the specified graph and X distance with default Y distance.
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Method Detail
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buildTree
protected void buildTree()
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buildTree
protected void buildTree(V v, int x)
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setSize
public void setSize(java.awt.Dimension size)
This method is not supported by this class. The size of the layout is determined by the topology of the tree, and by the horizontal and vertical spacing (optionally set by the constructor).
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setCurrentPositionFor
protected void setCurrentPositionFor(V vertex)
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getGraph
public edu.uci.ics.jung.graph.Graph<V,E> getGraph()
Description copied from interface:Layout
Returns the full graph (the one that was passed in at construction time) that this Layout refers to.
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getSize
public java.awt.Dimension getSize()
Description copied from interface:Layout
Returns the current size of the visualization's space.
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initialize
public void initialize()
Description copied from interface:Layout
Initializes fields in the node that may not have been set during the constructor. Must be called before the iterations begin.- Specified by:
initialize
in interfaceLayout<V,E>
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isLocked
public boolean isLocked(V v)
Description copied from interface:Layout
Returnstrue
if the position of vertexv
is locked.
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lock
public void lock(V v, boolean state)
Description copied from interface:Layout
Sets a flag which fixes this vertex in place.
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setGraph
public void setGraph(edu.uci.ics.jung.graph.Graph<V,E> graph)
Description copied from interface:Layout
setter for graph
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setInitializer
public void setInitializer(org.apache.commons.collections4.Transformer<V,java.awt.geom.Point2D> initializer)
Description copied from interface:Layout
provides initial locations for all vertices.- Specified by:
setInitializer
in interfaceLayout<V,E>
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getCenter
public java.awt.geom.Point2D getCenter()
Returns the center of this layout's area.
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setLocation
public void setLocation(V v, java.awt.geom.Point2D location)
Description copied from interface:Layout
set the location of a vertex- Specified by:
setLocation
in interfaceLayout<V,E>
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