edu.rit.draw.item

Class Arrow

java.lang.Object

edu.rit.draw.item.Arrow

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable

public class Arrow
extends java.lang.Object
implements java.io.Externalizable

Class Arrow provides various kinds of arrowheads that can be added to the ends of a Line.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Arrow	NONE A nonexistent arrow.
static Arrow	OPEN An open arrow in the shape of a narrow triangle.
static Arrow	SOLID A solid arrow in the shape of a narrow triangle.

Constructor Summary

Constructors

Constructor and Description
Arrow() Construct a new nonexistent arrow.

Method Summary

Modifier and Type	Method and Description
void	draw(java.awt.Graphics2D g2d, float width, double x, double y, double phi) Draw this arrow in the given graphics context.
void	readExternal(java.io.ObjectInput in) Read this arrow from the given object input stream.
void	writeExternal(java.io.ObjectOutput out) Write this arrow to the given object output stream.

Methods inherited from class java.lang.Object

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

Field Detail

NONE

public static final Arrow NONE

A nonexistent arrow.

SOLID

public static final Arrow SOLID

A solid arrow in the shape of a narrow triangle.

OPEN

public static final Arrow OPEN

An open arrow in the shape of a narrow triangle.

Constructor Detail

Arrow

public Arrow()

Construct a new nonexistent arrow.

Method Detail

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Write this arrow to the given object output stream.

Specified by:

writeExternal in interface java.io.Externalizable

Parameters:

out - Object output stream.

Throws:

java.io.IOException - Thrown if an I/O error occurred.

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException

Read this arrow from the given object input stream.

Specified by:

readExternal in interface java.io.Externalizable

Parameters:

in - Object input stream.

Throws:

java.io.IOException - Thrown if an I/O error occurred.

draw

public void draw(java.awt.Graphics2D g2d,
                 float width,
                 double x,
                 double y,
                 double phi)

Draw this arrow in the given graphics context. It assumes the graphics context's stroke and paint are already set to the correct values. The arrow is scaled to match the width. The arrow's tip is placed at the coordinates (x,y). The arrow is rotated so it points in the direction given by phi.

Parameters:

g2d - 2-D graphics context.

width - Stroke width.

x - X coordinate of the arrow's tip.

y - Y coordinate of the arrow's tip.

phi - Angle in which the arrow points (radians).