Module imp2d

Package de.grogra.imp2d.layout

Class ForceBasedLayout2

java.lang.Object

de.grogra.persistence.ShareableBase

de.grogra.imp2d.layout.Layout

de.grogra.imp2d.layout.ForceBasedLayout2

All Implemented Interfaces:

Manageable, Shareable

public abstract class ForceBasedLayout2
extends Layout

A second ForceBasedLayout computes a graph layout based on a force model. The concrete force model has to be implemented in subclasses. (e. g. FruchtermanReingold, Eades, DavidsonHarel)

Author:

Birka Fonkeng

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	ForceBasedLayout2.FBAlgorithm2

Nested classes/interfaces inherited from class de.grogra.imp2d.layout.Layout

Layout.Algorithm, Layout.Type

Field Summary

Fields

Modifier and Type	Field	Description
protected float	fDistanceMultiplier
protected float	fDistanceMultiplierMax
protected float	fDistanceMultiplierMin
int	fMaxIterations
int	fMaxIterationsTemp

Fields inherited from class de.grogra.imp2d.layout.Layout

$TYPE, fit$FIELD, transformationSteps$FIELD

Constructor Summary

Constructors

Constructor	Description
ForceBasedLayout2()

Method Summary

Modifier and Type	Method	Description
protected Layout.Algorithm	createAlgorithm()	Creates an algorithm for this layout.
protected abstract double	getFDeltaFactor()	getting the fDeltaFactor
protected abstract Point2d	repellingForce(Node firstNode, Node secondNode)	Calculating the repelling force of two nodes
protected abstract void	setRandomPosition(Node nodeTemp, Random rnd)	Calculating the inital positions of the nodes
protected abstract Point2d	springForce(Node firstNode, Node secondNode)	Calculating the spring force of two nodes

Methods inherited from class de.grogra.imp2d.layout.Layout

getParam, invoke, setParam, setRedraw, setTransformationSteps

Methods inherited from class de.grogra.persistence.ShareableBase

addReference, appendReferencesTo, fieldModified, getProvider, getStamp, initProvider, manageableReadResolve, manageableWriteReplace, removeReference

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.grogra.persistence.Manageable

getManageableType

Field Details

fMaxIterations

public int fMaxIterations

fMaxIterationsTemp

public int fMaxIterationsTemp

fDistanceMultiplierMin

protected float fDistanceMultiplierMin

fDistanceMultiplierMax

protected float fDistanceMultiplierMax

fDistanceMultiplier

protected float fDistanceMultiplier

Constructor Details

ForceBasedLayout2

public ForceBasedLayout2()

Method Details

createAlgorithm

protected Layout.Algorithm createAlgorithm()

Description copied from class: Layout

Creates an algorithm for this layout.

Specified by:

createAlgorithm in class Layout

Returns:

a new Algorithm instance

repellingForce

protected abstract Point2d repellingForce(Node firstNode,
 Node secondNode)

Calculating the repelling force of two nodes

springForce

protected abstract Point2d springForce(Node firstNode,
 Node secondNode)

Calculating the spring force of two nodes

getFDeltaFactor

protected abstract double getFDeltaFactor()

getting the fDeltaFactor

setRandomPosition

protected abstract void setRandomPosition(Node nodeTemp,
 Random rnd)

Calculating the inital positions of the nodes