Package edu.uci.ics.jung.visualization.renderers

Class CenterEdgeArrowRenderingSupport<V,E>

java.lang.Object

edu.uci.ics.jung.visualization.renderers.CenterEdgeArrowRenderingSupport<V,E>

All Implemented Interfaces:

EdgeArrowRenderingSupport<V,E>

public class CenterEdgeArrowRenderingSupport<V,E>
extends java.lang.Object
implements EdgeArrowRenderingSupport<V,E>

Constructor Summary

Constructors

Constructor	Description
CenterEdgeArrowRenderingSupport()

Method Summary

Modifier and Type	Method	Description
java.awt.geom.AffineTransform	getArrowTransform(RenderContext<V,E> rc, java.awt.geom.Line2D edgeShape, java.awt.Shape vertexShape)	This is used for the arrow of a directed and for one of the arrows for non-directed edges Get a transform to place the arrow shape on the passed edge at the point where it intersects the passed shape
java.awt.geom.AffineTransform	getArrowTransform(RenderContext<V,E> rc, java.awt.Shape edgeShape, java.awt.Shape vertexShape)	Returns a transform to position the arrowhead on this edge shape at the point where it intersects the passed vertex shape.
protected java.awt.geom.AffineTransform	getReverseArrowTransform(RenderContext<V,E> rc, java.awt.geom.Line2D edgeShape, java.awt.Shape vertexShape)	This is used for the reverse-arrow of a non-directed edge get a transform to place the arrow shape on the passed edge at the point where it intersects the passed shape
java.awt.geom.AffineTransform	getReverseArrowTransform(RenderContext<V,E> rc, java.awt.Shape edgeShape, java.awt.Shape vertexShape)	Returns a transform to position the arrowhead on this edge shape at the point where it intersects the passed vertex shape.
java.awt.geom.AffineTransform	getReverseArrowTransform(RenderContext<V,E> rc, java.awt.Shape edgeShape, java.awt.Shape vertexShape, boolean passedGo)	Returns a transform to position the arrowhead on this edge shape at the point where it intersects the passed vertex shape.
protected void	subdivide(java.awt.geom.Line2D src, java.awt.geom.Line2D left, java.awt.geom.Line2D right)	divide a Line2D into 2 new Line2Ds that are returned in the passed left and right instances, if non-null

Methods inherited from class java.lang.Object

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

Constructor Detail

CenterEdgeArrowRenderingSupport

public CenterEdgeArrowRenderingSupport()

Method Detail

getArrowTransform

public java.awt.geom.AffineTransform getArrowTransform(RenderContext<V,E> rc,
                                                       java.awt.Shape edgeShape,
                                                       java.awt.Shape vertexShape)

Returns a transform to position the arrowhead on this edge shape at the point where it intersects the passed vertex shape.

Specified by:

getArrowTransform in interface EdgeArrowRenderingSupport<V,E>

getReverseArrowTransform

public java.awt.geom.AffineTransform getReverseArrowTransform(RenderContext<V,E> rc,
                                                              java.awt.Shape edgeShape,
                                                              java.awt.Shape vertexShape)

Returns a transform to position the arrowhead on this edge shape at the point where it intersects the passed vertex shape.

Specified by:

getReverseArrowTransform in interface EdgeArrowRenderingSupport<V,E>

getReverseArrowTransform

public java.awt.geom.AffineTransform getReverseArrowTransform(RenderContext<V,E> rc,
                                                              java.awt.Shape edgeShape,
                                                              java.awt.Shape vertexShape,
                                                              boolean passedGo)

Returns a transform to position the arrowhead on this edge shape at the point where it intersects the passed vertex shape.

The Loop edge is a special case because its staring point is not inside the vertex. The passedGo flag handles this case.

Specified by:

getReverseArrowTransform in interface EdgeArrowRenderingSupport<V,E>

Parameters:

path -

vertexShape -

passedGo - - used only for Loop edges

getArrowTransform

public java.awt.geom.AffineTransform getArrowTransform(RenderContext<V,E> rc,
                                                       java.awt.geom.Line2D edgeShape,
                                                       java.awt.Shape vertexShape)

This is used for the arrow of a directed and for one of the arrows for non-directed edges Get a transform to place the arrow shape on the passed edge at the point where it intersects the passed shape

Specified by:

getArrowTransform in interface EdgeArrowRenderingSupport<V,E>

Parameters:

edgeShape -

vertexShape -

Returns:

getReverseArrowTransform

protected java.awt.geom.AffineTransform getReverseArrowTransform(RenderContext<V,E> rc,
                                                                 java.awt.geom.Line2D edgeShape,
                                                                 java.awt.Shape vertexShape)

This is used for the reverse-arrow of a non-directed edge get a transform to place the arrow shape on the passed edge at the point where it intersects the passed shape

Parameters:

edgeShape -

vertexShape -

Returns:

subdivide

protected void subdivide(java.awt.geom.Line2D src,
                         java.awt.geom.Line2D left,
                         java.awt.geom.Line2D right)

divide a Line2D into 2 new Line2Ds that are returned in the passed left and right instances, if non-null

Parameters:

src - the line to divide

left - the left side, or null

right - the right side, or null