jadex.rules.tools.reteviewer

Class ReteLayout

java.lang.Object

edu.uci.ics.jung.algorithms.layout.AbstractLayout

jadex.rules.tools.reteviewer.ReteLayout

All Implemented Interfaces:

edu.uci.ics.jung.algorithms.layout.Layout, org.apache.commons.collections15.Transformer

public class ReteLayout
extends edu.uci.ics.jung.algorithms.layout.AbstractLayout
implements edu.uci.ics.jung.algorithms.layout.Layout

Jung layout for a Rete network.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	annealing Flag to enable simulated annealing (SA).
protected java.util.List	layers The nodes, sorted in layers.
protected boolean	layout Flag to enable layout optimization.
protected boolean	positions Flag to indicate when positions are up-to-date.
protected java.awt.Dimension	rsize The size.

Fields inherited from class edu.uci.ics.jung.algorithms.layout.AbstractLayout

graph, initialized, locations, size

Constructor Summary

Constructors

Constructor and Description
ReteLayout(edu.uci.ics.jung.graph.Graph g) Create a new Rete layout.

Method Summary

Modifier and Type	Method and Description
protected double	calcEdgeLength(ReteEdge edge, jadex.rules.rulesystem.rete.nodes.INode node, int layer, int pos) Calculate the edge length of the given edge.
protected double	calcEdgeLengths(edu.uci.ics.jung.graph.Graph graph, jadex.rules.rulesystem.rete.nodes.INode node, int layer, int pos) Calculate the edge lengths between a node and its parents/children.
edu.uci.ics.jung.graph.Graph	getGraph() Get the graph to be layouted.
java.awt.Dimension	getSize() Get the size.
void	graphChanged() Called, when the graph structure has changed.
void	initialize() Called when a (re-)layout is needed.
protected void	layoutLayers() Called when a (re-)layout is needed.
void	reset() Called when ?
protected void	setPositions() Called, when the component has been resized.
void	setSize(java.awt.Dimension size) Called, when the component is resized.

Methods inherited from class edu.uci.ics.jung.algorithms.layout.AbstractLayout

getX, getY, isLocked, lock, lock, offsetVertex, setGraph, setInitializer, setLocation, setLocation, transform

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface edu.uci.ics.jung.algorithms.layout.Layout

isLocked, lock, setGraph, setInitializer, setLocation

Methods inherited from interface org.apache.commons.collections15.Transformer

transform

Field Detail

rsize

protected java.awt.Dimension rsize

The size.

layers

protected java.util.List layers

The nodes, sorted in layers.

positions

protected boolean positions

Flag to indicate when positions are up-to-date.

layout

protected boolean layout

Flag to enable layout optimization. With layout optimization, not only edge lengths are optimized, but also left/right directions of connected alpha and beta nodes.

annealing

protected boolean annealing

Flag to enable simulated annealing (SA). With SA, the layout algorithm will take longer, but can escape sub optimal local minima.

Constructor Detail

ReteLayout

public ReteLayout(edu.uci.ics.jung.graph.Graph g)

Create a new Rete layout.

Method Detail

initialize

public void initialize()

Called when a (re-)layout is needed.

Specified by:

initialize in interface edu.uci.ics.jung.algorithms.layout.Layout

reset

public void reset()

Called when ?

Specified by:

reset in interface edu.uci.ics.jung.algorithms.layout.Layout

getGraph

public edu.uci.ics.jung.graph.Graph getGraph()

Get the graph to be layouted.

Specified by:

getGraph in interface edu.uci.ics.jung.algorithms.layout.Layout

Overrides:

getGraph in class edu.uci.ics.jung.algorithms.layout.AbstractLayout

setSize

public void setSize(java.awt.Dimension size)

Called, when the component is resized. New positions will be calculated on next redrawn.

Specified by:

setSize in interface edu.uci.ics.jung.algorithms.layout.Layout

Overrides:

setSize in class edu.uci.ics.jung.algorithms.layout.AbstractLayout

getSize

public java.awt.Dimension getSize()

Get the size.

Specified by:

getSize in interface edu.uci.ics.jung.algorithms.layout.Layout

Overrides:

getSize in class edu.uci.ics.jung.algorithms.layout.AbstractLayout

graphChanged

public void graphChanged()

Called, when the graph structure has changed. New layer structure will be calculated on next redraw.

layoutLayers

protected void layoutLayers()

Called when a (re-)layout is needed. Arrange node in layers structure (lists of lists of nodes), which is independent of component size.

setPositions

protected void setPositions()

Called, when the component has been resized. Use layer structure to place nodes inside component bounds.

calcEdgeLengths

protected double calcEdgeLengths(edu.uci.ics.jung.graph.Graph graph,
                                 jadex.rules.rulesystem.rete.nodes.INode node,
                                 int layer,
                                 int pos)

Calculate the edge lengths between a node and its parents/children.

calcEdgeLength

protected double calcEdgeLength(ReteEdge edge,
                                jadex.rules.rulesystem.rete.nodes.INode node,
                                int layer,
                                int pos)

Calculate the edge length of the given edge. If layout is enabled, the edge length is rated according to layout constraints (shorter length = better layout).