horstmann.ch08_graphed2

Interface Node

All Superinterfaces:

java.lang.Cloneable, java.io.Serializable

All Known Implementing Classes:

CircleNode, PointNode

public interface Node
extends java.io.Serializable, java.lang.Cloneable

A node in a graph.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone()
boolean	contains(java.awt.geom.Point2D aPoint) Tests whether the node contains a point.
void	draw(java.awt.Graphics2D g2) Draw the node.
java.awt.geom.Rectangle2D	getBounds() Get the bounding rectangle of the shape of this node
java.awt.geom.Point2D	getConnectionPoint(java.awt.geom.Point2D aPoint) Get the best connection point to connect this node with another node.
void	translate(double dx, double dy) Translates the node by a given amount.

Method Detail

draw

void draw(java.awt.Graphics2D g2)

Draw the node.

Parameters:

g2 - the graphics context

translate

void translate(double dx,
               double dy)

Translates the node by a given amount.

Parameters:

dx - the amount to translate in the x-direction

dy - the amount to translate in the y-direction

contains

boolean contains(java.awt.geom.Point2D aPoint)

Tests whether the node contains a point.

Parameters:

aPoint - the point to test

Returns:

true if this node contains aPoint

getConnectionPoint

java.awt.geom.Point2D getConnectionPoint(java.awt.geom.Point2D aPoint)

Get the best connection point to connect this node with another node. This should be a point on the boundary of the shape of this node.

Parameters:

aPoint - an exterior point that is to be joined with this node

Returns:

the recommended connection point

getBounds

java.awt.geom.Rectangle2D getBounds()

Get the bounding rectangle of the shape of this node

Returns:

the bounding rectangle

clone

java.lang.Object clone()