gumbo.visualize.data.layout
Class GraphLayoutEdge

java.lang.Object
  |
  +--gumbo.visualize.data.layout.GraphLayoutPart
        |
        +--gumbo.visualize.data.layout.GraphLayoutEdge

All Implemented Interfaces:

LayoutPart, LayoutPartView, LayoutView

Direct Known Subclasses:

KinkyGraphLayoutEdge

public class GraphLayoutEdge

extends GraphLayoutPart

implements LayoutPartView

A layout view for a graph model edge with two connections. Automatically connects its ends to their vertices when the display is validated.

Version:

$Revision: 1.17 $

Author:

Jon Barrilleaux (jonb@jmbaai.com) of JMB and Associates Inc.

Constructor Summary

GraphLayoutEdge(PartView view)

Method Summary

DataView	getDataView() Gets the data view associated with this layout view.
AxisBound3	getGraphicBound() Returns an immutable view of the smallest bounds containing this layout part, in graphic space.
GraphLayoutVertex	getHeadVertex()
AxisBound3	getLayoutBound(AxisBound3 retVal) Returns the smallest bounds containing this part, in layout space.
GraphLayoutVertex	getTailVertex()
void	initLayoutPart(java.util.Map vertMap) Completes the initialization of this layout part.
boolean	intersectLayout(LayoutPart part) Returns true if the target part intersects this part in layout space.
java.lang.String	toString()
void	validateLayoutDisplay(LayoutGraphicTransform xform) Assumes vertices have already been validated in graphic space.

Methods inherited from class java.lang.Object

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

Constructor Detail

GraphLayoutEdge

public GraphLayoutEdge(PartView view)

Method Detail

initLayoutPart

public void initLayoutPart(java.util.Map vertMap)

Completes the initialization of this layout part. Must be called after all layout parts for the graph have been constructed, but before using this part to perform layout.

Parameters:

vertMap - Maps vertex models (VertexModel) to layout part (GraphLayoutVertex). Never null.

getHeadVertex

public GraphLayoutVertex getHeadVertex()

getTailVertex

public GraphLayoutVertex getTailVertex()

intersectLayout

public boolean intersectLayout(LayoutPart part)

Description copied from interface: LayoutPart

Returns true if the target part intersects this part in layout space.

Specified by:

intersectLayout in interface LayoutPart

Parameters:

part - The target part. Never null.

Returns:

True if the target part intersects this part.

getLayoutBound

public AxisBound3 getLayoutBound(AxisBound3 retVal)

Description copied from interface: LayoutPart

Returns the smallest bounds containing this part, in layout space.

Specified by:

getLayoutBound in interface LayoutPart

Parameters:

retVal - Return value object. Never null.

Returns:

Reference to retVal. Never null.

getDataView

public final DataView getDataView()

Description copied from interface: LayoutView

Gets the data view associated with this layout view.

Specified by:

getDataView in interface LayoutView

Returns:

Reference to the data view. The data view graphic must be a GraphicPresence. Never null.

validateLayoutDisplay

public void validateLayoutDisplay(LayoutGraphicTransform xform)

Assumes vertices have already been validated in graphic space. Sets the edge shape head and tail positions to link the head and tail vertices.

Specified by:

validateLayoutDisplay in interface LayoutView

Parameters:

xform - Transform between layout and graphic space. Never null.

getGraphicBound

public AxisBound3 getGraphicBound()

Description copied from interface: LayoutPartView

Returns an immutable view of the smallest bounds containing this layout part, in graphic space.

Specified by:

getGraphicBound in interface LayoutPartView

Returns:

The bound. Never null.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object