net.avensome.dev.gnupolpot.api.plotter

Class PlotPoint

java.lang.Object

net.avensome.dev.gnupolpot.api.plotter.PlotPoint

All Implemented Interfaces:

java.io.Serializable

public final class PlotPoint
extends java.lang.Object
implements java.io.Serializable

Represents a single point on the plot.

This class is final because extending it is prone to introducing bugs.

For example consider this case: you want to have some extra fields on PlotPoints. You create a class PointExt that extends PlotPoint and adds some fields. Then you play with it a bit and finally you change color of the point. But you accidentally change color the PointExt point instead of PlotPoint and it has no effect.

The solution is to add original PlotPoint as PointExt's field, but then what's the point of extending PlotPoint if you can simply manipulate the underlying point?

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
PlotPoint(double x, double y) Creates point with default color.
PlotPoint(double x, double y, javafx.scene.paint.Color color)

Method Summary

Modifier and Type	Method and Description
double	distanceFrom(double x, double y) Calculate distance from this point to provided coordinate.
javafx.scene.paint.Color	getColor()
double	getX()
double	getY()
void	moveTo(double x, double y) Change both coordinates of this point at once.
void	setColor(javafx.scene.paint.Color color) Change this point's color.
void	setX(double x) Change X coordinate of this point.
void	setY(double y) Change Y coordinate of this point.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

PlotPoint

public PlotPoint(double x,
                 double y)

Creates point with default color.

Parameters:

x - X coordinate

y - Y coordinate

PlotPoint

public PlotPoint(double x,
                 double y,
                 javafx.scene.paint.Color color)

Parameters:

x - X coordinate

y - Y coordinate

color - point color

Method Detail

getX

public double getX()

Returns:

X coordinate of this point.

setX

public void setX(double x)

Change X coordinate of this point.

Parameters:

x - new X coordinate value

getY

public double getY()

Returns:

Y coordinate of this point.

setY

public void setY(double y)

Change Y coordinate of this point.

Parameters:

y - new Y coordinate value

moveTo

public void moveTo(double x,
                   double y)

Change both coordinates of this point at once.

Parameters:

x - new X coordinate value

y - new Y coordinate value

getColor

public javafx.scene.paint.Color getColor()

Returns:

Displayed color of this point.

setColor

public void setColor(javafx.scene.paint.Color color)

Change this point's color.

Parameters:

color - new color

distanceFrom

public double distanceFrom(double x,
                           double y)

Calculate distance from this point to provided coordinate.

Parameters:

x - X coordinate of the second point

y - Y coordinate of the second point

Returns:

Distance between this point and provided coordinates.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object