Package com.treemap

Class SquarifiedPlusAlgorithm

java.lang.Object

com.treemap.AbstractAlgorithm

com.treemap.SquarifiedPlusAlgorithm

All Implemented Interfaces:

Algorithm

public class SquarifiedPlusAlgorithm
extends AbstractAlgorithm

Implementation of the Squarified+ algorithm. It is described in:

Cesarano A, Ferrucci F, Torre M. A heuristic extending the Squarified treemapping algorithm. arXiv preprint arXiv:1609.00754. 2016 Sep 2.

A heuristic extending the squarified algorithm with better aspect ratios and higher homogeneity among items.

Complexity: O(n), where n is the number of nodes in the tree.

Constructor Summary

Constructors

Constructor	Description
SquarifiedPlusAlgorithm()

Method Summary

Modifier and Type	Method	Description
boolean	breadthFirstLayout(com.macrofocus.geom.Shape shape, MutableTreeMapNode parent, MutableTreeMapNode[] children, double sumSize, int horizontalVanishingPoint, int verticalVanishingPoint, TreeMapWorker worker)	Arrange the items in the given array to fill the given shape.
MutableProperties	getProperties()	Properties for storing layout algorithm specific options.
boolean	isCompatible(com.macrofocus.geom.Shape shape)	Indicates whether the layout algorithm can handle the given geometry of its parent
static void	main(String[] args)
String	toString()

Methods inherited from class com.treemap.AbstractAlgorithm

depthFirstLayout, finishLayout, isChildContained, isColorParent, isRenderingLeafLabelsSupported, isRenderingParentLabelSupported, isSpaceFilling, iterator, startLayout, sum

Methods inherited from class java.lang.Object

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

Constructor Details

SquarifiedPlusAlgorithm

public SquarifiedPlusAlgorithm()

Method Details

getProperties

public MutableProperties getProperties()

Description copied from interface: Algorithm

Properties for storing layout algorithm specific options.

Specified by:

getProperties in interface Algorithm

Overrides:

getProperties in class AbstractAlgorithm

Returns:

the specific properties of this algorithm

breadthFirstLayout

public boolean breadthFirstLayout(com.macrofocus.geom.Shape shape,
 MutableTreeMapNode parent,
 MutableTreeMapNode[] children,
 double sumSize,
 int horizontalVanishingPoint,
 int verticalVanishingPoint,
 TreeMapWorker worker)

Arrange the items in the given array to fill the given shape. This is called during the first pass, while traversing the tree top down.

Parameters:

shape - the current rectangle being divided.

parent - the parent node.

children - the items to map.

sumSize - the size of the parent.

horizontalVanishingPoint -

verticalVanishingPoint -

worker - the worker thread

Returns:

true if the layout has been cancelled, false otherwise

isCompatible

public boolean isCompatible(com.macrofocus.geom.Shape shape)

Description copied from interface: Algorithm

Indicates whether the layout algorithm can handle the given geometry of its parent

Parameters:

shape - the geometry of its parent

Returns:

true if it can lay out the children using the specified geometrical shape

toString

public String toString()

Overrides:

toString in class Object

main

@GwtIncompatible
public static void main(String[] args)