Class CartesianPositivePlane

java.lang.Object

jaba.cartesian.CartesianPositivePlane

public class CartesianPositivePlane
extends Object

This class manages and draws points in a dimensional cartesian plane. This class draws just the first quadrant of the plane.

Author:

Sebastiano Spicuglia

Constructor Summary

Constructors

Constructor	Description
CartesianPositivePlane(Graphics2D g, DPoint origin, int xAxisLength, int yAxisLength, double xMaxValue, double yMaxValue)	Creates a new CartesianPositivePlane object

Method Summary

Modifier and Type	Method	Description
void	draw(String xAxisLabel, String yAxisLabel)	Draws the plane
void	drawProjectionOnTheXAxis(DPoint p)	Draws the the orthogonal projection of the point @p onto the x-axis
void	drawProjectionOnTheYAxis(DPoint p)	Draws the the orthogonal projection of the point @p onto the y-axis
void	drawSegment(DPoint p1, DPoint p2)	Draws a segment between two points
void	drawValuesOnXAxis(ArrayList<DPoint> points)	Draws the value of the abscissa for all points in the @points list.
void	drawValuesOnYAxis(ArrayList<DPoint> points)	Draws the value of the ordinate for all points in the @points list.
DPoint	getGraphPointFromTruePoint(DPoint p)	Returns the coordinates of the @p point (on the graphics context) into the plane
DPoint	getTruePoint(DPoint p)	Returns the coordinates of the @p point into the graphics context
DPoint	getTruePoint(Point2D p)	Returns the coordinates of the @p point into the graphics context
int	getTrueX(double x)	Returns the x-coordinate of the @x point into the graphics context
int	getTrueY(double y)	Returns the y-coordinate of the @y point into the graphics context

Methods inherited from class Object

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

Constructor Details

CartesianPositivePlane

public CartesianPositivePlane(Graphics2D g,
 DPoint origin,
 int xAxisLength,
 int yAxisLength,
 double xMaxValue,
 double yMaxValue)
                       throws Exception

Creates a new CartesianPositivePlane object

Parameters:

g - the specified Graphics context

origin - the point on g where to place the origin of the plane

xAxisLength - the x-axis length

yAxisLength - the y-axis length

xMaxValue - the max value of abscissa you want to place on the graph

yMaxValue - the max value of ordinate you want to place on the graph

Throws:

Exception

Method Details

drawValuesOnXAxis

public void drawValuesOnXAxis(ArrayList<DPoint> points)

Draws the value of the abscissa for all points in the @points list.

Parameters:

points - an arraylist of points

drawValuesOnYAxis

public void drawValuesOnYAxis(ArrayList<DPoint> points)

Draws the value of the ordinate for all points in the @points list.

Parameters:

points - an arraylist of points

drawProjectionOnTheXAxis

public void drawProjectionOnTheXAxis(DPoint p)

Draws the the orthogonal projection of the point @p onto the x-axis

Parameters:

p - a point

drawProjectionOnTheYAxis

public void drawProjectionOnTheYAxis(DPoint p)

Draws the the orthogonal projection of the point @p onto the y-axis

Parameters:

p - a point

draw

public void draw(String xAxisLabel,
 String yAxisLabel)

Draws the plane

Parameters:

xAxisLabel - the x-axis label

yAxisLabel - the y-axis label

drawSegment

public void drawSegment(DPoint p1,
 DPoint p2)

Draws a segment between two points

Parameters:

p1 - start point

p2 - end point

getTrueX

public int getTrueX(double x)

Returns the x-coordinate of the @x point into the graphics context

Parameters:

x - a point

Returns:

the x-coordinate of the @x point into the graphics context

getTrueY

public int getTrueY(double y)

Returns the y-coordinate of the @y point into the graphics context

Parameters:

y - a point

Returns:

the y-coordinate of the @y point into the graphics context

getTruePoint

public DPoint getTruePoint(DPoint p)

Returns the coordinates of the @p point into the graphics context

Parameters:

p - a point

Returns:

the coordinates of the @p point into the graphics context

getTruePoint

public DPoint getTruePoint(Point2D p)

Returns the coordinates of the @p point into the graphics context

Parameters:

p - a point

Returns:

the coordinates of the @p point into the graphics context

getGraphPointFromTruePoint

public DPoint getGraphPointFromTruePoint(DPoint p)

Returns the coordinates of the @p point (on the graphics context) into the plane

Parameters:

p - a point

Returns:

the coordinates of the @p point into the plane