Package curve.fig

Class Oval

java.lang.Object

curve.fig.F

curve.fig.Oval

All Implemented Interfaces:

Colour, Out

public class Oval
extends F

To angle an eclipse. Could this be applied to any figure?

https://stackoverflow.com/questions/3025519/how-do-i-draw-an-ellipse-with-arbitrary-orientation-pixel-by-pixel

x = X cos(a) - Y sin(a)

y = Y cos(a) + X sin(a)

Where a is the angle of anticlockwise rotation,
(x, y) are the new coordinates,
and (X, Y) are the old.

Author:

eddie

Field Summary

Fields

Modifier and Type	Field	Description
private int	rx	working values
private int	ry	working values
(package private) String	zz	for debug

Fields inherited from class curve.fig.F

angle, basePoints, board, colourIndex, dirty, ep1, ep2, id, rotPoints, selected, sid, t

Constructor Summary

Constructors

Constructor	Description
Oval(EndPoint ep1, int rx, int ry, int angle, int colour, Board board, Tr t)	constructor called from file input
Oval(EndPoint ep1, int rx, int ry, int angle, int colour, String sid, Board board, Tr t)	constructor called from interpreter

Method Summary

Modifier and Type	Method	Description
void	draw(Graphics g, Board board, Tr t)	draw oval
(package private) void	generate(double rx, double ry, double xc, double yc)	generate
String	out()	to String
private void	plot(double x, double y)	plot
String	toString()	to String

Methods inherited from class curve.fig.F

clearSelected, flipSelected, getColourIndex, getDirty, getID, isSelected, setColourIndex, setDirty, setSelected

Methods inherited from class java.lang.Object

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

Field Details

zz

String zz

for debug

rx

private int rx

working values

ry

private int ry

working values

Constructor Details

Oval

public Oval(EndPoint ep1,
 int rx,
 int ry,
 int angle,
 int colour,
 Board board,
 Tr t)

constructor called from file input

Parameters:

ep1 - -

rx - -

ry - -

angle - -

colour - -

board - -

t - -

Oval

public Oval(EndPoint ep1,
 int rx,
 int ry,
 int angle,
 int colour,
 String sid,
 Board board,
 Tr t)

constructor called from interpreter

Parameters:

ep1 - -

rx - -

ry - -

angle - -

colour - -

sid - -

board - -

t - -

Method Details

draw

public void draw(Graphics g,
 Board board,
 Tr t)

draw oval

Specified by:

draw in interface Colour

Overrides:

draw in class F

Parameters:

g - -

board - -

t - -

plot

private void plot(double x,
 double y)

plot

Parameters:

x - -

y - -

generate

void generate(double rx,
 double ry,
 double xc,
 double yc)

generate

Parameters:

rx - -

ry - -

xc - -

yc - -

toString

public String toString()

to String

Specified by:

toString in interface Colour

Overrides:

toString in class F

Returns:

expression of this object

out

public String out()

to String

Specified by:

out in interface Out

Overrides:

out in class F

Returns:

expression of this object