cse1030.drawing

Class Triangle2D

java.lang.Object

cse1030.drawing.Triangle2D

public class Triangle2D
extends java.lang.Object

Author:

Andriyp Implements a small class representing 2D triangles with their vertex positions and colours. Uses composition to manage the colour and aggregation to manage the points. Colour should be represented with java.awt.Color. Points should be represented with java.awt.geom.Point2D.Double creates a copy of the triangle, with points set to null, and the colour set to black

Constructor Summary

Constructors

Constructor and Description
Triangle2D() creates a copy of the triangle, with points set to null, and the colour set to black
Triangle2D(java.awt.geom.Point2D.Double p1, java.awt.geom.Point2D.Double p2, java.awt.geom.Point2D.Double p3) Creates a triangle with points p1-p3, and with colour set to black
Triangle2D(java.awt.geom.Point2D.Double p1, java.awt.geom.Point2D.Double p2, java.awt.geom.Point2D.Double p3, java.awt.Color color) OPTIONAL: Creates a triangle with points p1-p3, and with colour set to color
Triangle2D(Triangle2D t) creates a copy of the original triangle

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other)
java.awt.geom.Point2D.Double	getA()
java.awt.geom.Point2D.Double	getB()
java.awt.geom.Point2D.Double	getC()
java.awt.Color	getColour()
static int	numInstances()
void	setA(java.awt.geom.Point2D.Double p)
void	setB(java.awt.geom.Point2D.Double p)
void	setC(java.awt.geom.Point2D.Double p)
void	setColour(java.awt.Color color)
java.lang.String	toString() Creates a string representation of a triangle.

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Triangle2D

public Triangle2D()

creates a copy of the triangle, with points set to null, and the colour set to black

Triangle2D

public Triangle2D(Triangle2D t)

creates a copy of the original triangle

Parameters:

t - original triangle

Triangle2D

public Triangle2D(java.awt.geom.Point2D.Double p1,
          java.awt.geom.Point2D.Double p2,
          java.awt.geom.Point2D.Double p3)

Creates a triangle with points p1-p3, and with colour set to black

Parameters:

p1 - - Point 1

p2 - - Point 2

p3 - - Point 3

Triangle2D

public Triangle2D(java.awt.geom.Point2D.Double p1,
          java.awt.geom.Point2D.Double p2,
          java.awt.geom.Point2D.Double p3,
          java.awt.Color color)

OPTIONAL: Creates a triangle with points p1-p3, and with colour set to color

Parameters:

p1 - - Point 1

p2 - - Point 2

p3 - - Point 3

color - - Colour associated with the triangle

Method Detail

setA

public void setA(java.awt.geom.Point2D.Double p)

Parameters:

p - point A of the triangle

setB

public void setB(java.awt.geom.Point2D.Double p)

Parameters:

p - point B of the triangle

setC

public void setC(java.awt.geom.Point2D.Double p)

Parameters:

p - point C of the triangle

getA

public java.awt.geom.Point2D.Double getA()

Returns:

point A of the triangle

getB

public java.awt.geom.Point2D.Double getB()

Returns:

point B of the triangle

getC

public java.awt.geom.Point2D.Double getC()

Returns:

point C of the triangle

setColour

public void setColour(java.awt.Color color)

Parameters:

color - color

getColour

public java.awt.Color getColour()

Returns:

color

numInstances

public static int numInstances()

Returns:

number of class instances

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Creates a string representation of a triangle. The string is should be in the following format: ((1.1, 1.2), (1.3, 1.4), (1.5, 1.6), colour from java.awt.Color. toString())

Overrides:

toString in class java.lang.Object

Returns:

The string representation of the object.