fr.inria.zvtm.layout.tree

Class TreeLayout

java.lang.Object

fr.inria.zvtm.layout.tree.TreeLayout

public class TreeLayout
extends Object

Layout algorithm to layout LTree objects.

Author:

Boris Trofimov

Constructor Summary

Constructors

Constructor and Description
TreeLayout(LTree tree) Creates instance of layout algorithm.
TreeLayout(LTree tree, int orientation, double dspace, double bspace, double tspace) Creates instance of layout algorithm.

Method Summary

Modifier and Type	Method and Description
void	doLayout(int cameraIndex) Layout all elements of the LTree.
double	getBreadthSpacing()
double	getDepthSpacing()
Point2D	getLayoutAnchor() Get anchor of the tree in virtual space (position of the root element)
int	getOrientation()
double	getSubtreeSpacing()
void	setBreadthSpacing(double b)
void	setDepthSpacing(double d)
void	setLayoutAnchor(Point2D a) Set layout anchor - position of the root element.
void	setOrientation(int orientation)
void	setSubtreeSpacing(double s)

Methods inherited from class java.lang.Object

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

Constructor Detail

TreeLayout

public TreeLayout(LTree tree)

Creates instance of layout algorithm.

Parameters:

tree - LTree instance to be laid out.

TreeLayout

public TreeLayout(LTree tree,
                  int orientation,
                  double dspace,
                  double bspace,
                  double tspace)

Creates instance of layout algorithm.

Parameters:

tree - LTree instance to be laid out.

orientation - Orientation is one of the TreeOrientation constants.

dspace - the spacing between depth levels

bspace - the spacing between sibling children

tspace - the spacing between subtrees

See Also:

TreeOrientation

Method Detail

setOrientation

public void setOrientation(int orientation)

getOrientation

public int getOrientation()

setDepthSpacing

public void setDepthSpacing(double d)

getDepthSpacing

public double getDepthSpacing()

setBreadthSpacing

public void setBreadthSpacing(double b)

getBreadthSpacing

public double getBreadthSpacing()

setSubtreeSpacing

public void setSubtreeSpacing(double s)

getSubtreeSpacing

public double getSubtreeSpacing()

getLayoutAnchor

public Point2D getLayoutAnchor()

Get anchor of the tree in virtual space (position of the root element)

Returns:

Layout anchor

setLayoutAnchor

public void setLayoutAnchor(Point2D a)

Set layout anchor - position of the root element.

Parameters:

a - Point in virtual space

doLayout

public void doLayout(int cameraIndex)

Layout all elements of the LTree. This method updates position of each LNode instance in LTree tree.

Parameters:

cameraIndex - index of active camera. Used to retrieve bounds of VText and VBText instances.

See Also:

LNode, LTree