Class HSVHex

java.lang.Object
   |
   +----java.awt.Component
           |
           +----java.awt.Canvas
                   |
                   +----HSVHex

public class HSVHex
extends Canvas

This class produces the HSV hexagon component.

Bx: coordinates for Blue vertex.
By: coordinates for Blue vertex.
Cx: coordinates for Cyan vertex.
Cy: coordinates for Cyan vertex.
D
fradius: radius (float)
Gx: coordinates for Green vertex.
Gy: coordinates for Green vertex.
H
h: hue and saturation for each (x,y) of the image.
hue: Current HSV space coordinates.
image: Image of the hexagon.
iradius: radius (int)
Mx: coordinates for Magenta vertex.
My: coordinates for Magenta vertex.
pix: pixel array.
Rx: coordinates for Red vertex.
Ry: coordinates for Red vertex.
s: hue and saturation for each (x,y) of the image.
saturation: Current HSV space coordinates.
value: Current HSV space coordinates.
yout
Yx: coordinates for Yellow vertex.
Yy: coordinates for Yellow vertex.

HSVHex(float, float, float): Constructs the hexagon.

compute_hs(int, int): compute H and S for given (x,y) position on the hexagon.
computeImage(): Computes and creates the hexagon image.
drawHS(Graphics): Draws the marker indicating current (H,S) coordinates.
minimumSize(): Overrides the default minimumSize() method.
paint(Graphics): Draws the image of the hexagon and the (H,S) marker.
preferredSize(): Overrides the default preferredSize() method.
setHSV(float): Sets the V value and repaints the hexagon.
setHSV(float, float): Sets the S and H values and repaints the hexagon.
setHSV(float, float, float): Sets the H, S and V values and repaints the hexagon.
update(Graphics): Overrides the default update(Graphics) method in order not to clear screen to avoid flicker.

image

 Image image

Image of the hexagon.

hue

 float hue

Current HSV space coordinates.

saturation

 float saturation

Current HSV space coordinates.

value

 float value

Current HSV space coordinates.

 float h

hue and saturation for each (x,y) of the image.

 float s

hue and saturation for each (x,y) of the image.

pix

 int pix[]

pixel array.

 int Rx

coordinates for Red vertex.

 int Ry

coordinates for Red vertex.

 int Yx

coordinates for Yellow vertex.

 int Yy

coordinates for Yellow vertex.

 int Gx

coordinates for Green vertex.

 int Gy

coordinates for Green vertex.

 int Cx

coordinates for Cyan vertex.

 int Cy

coordinates for Cyan vertex.

 int Bx

coordinates for Blue vertex.

 int By

coordinates for Blue vertex.

 int Mx

coordinates for Magenta vertex.

 int My

coordinates for Magenta vertex.

fradius

 float fradius

radius (float)

iradius

 int iradius

radius (int)

yout

 int yout

 int D

 int H

HSVHex

 public HSVHex(float hue,
               float saturation,
               float value)

Constructs the hexagon.

Parameters:: hue - the H coordinate; saturation - the S coordinate; value - the V coordinate

compute_hs

 void compute_hs(int x,
                 int y)

compute H and S for given (x,y) position on the hexagon. (x,y) must be inside the hexagon.

setHSV

 public void setHSV(float value)

Sets the V value and repaints the hexagon.

Parameters:: value - the V coordinate

setHSV

 public void setHSV(float hue,
                    float saturation)

Sets the S and H values and repaints the hexagon.

Parameters:: hue - the H coordinate; saturation - the S coordinate

setHSV

 public void setHSV(float hue,
                    float saturation,
                    float value)

Sets the H, S and V values and repaints the hexagon.

Parameters:: hue - the H coordinate; saturation - the S coordinate; value - the V coordinate

minimumSize

 public Dimension minimumSize()

Overrides the default minimumSize() method.

Returns:: new Dimension
Overrides:: minimumSize in class Component

preferredSize

 public Dimension preferredSize()

Overrides the default preferredSize() method.

Returns:: new Dimension
Overrides:: preferredSize in class Component

computeImage

 void computeImage()

Computes and creates the hexagon image.

drawHS

 void drawHS(Graphics g)

Draws the marker indicating current (H,S) coordinates.

paint

 public void paint(Graphics g)

Draws the image of the hexagon and the (H,S) marker.

Overrides:: paint in class Canvas

update

 public void update(Graphics g)

Overrides the default update(Graphics) method in order not to clear screen to avoid flicker.

Overrides:: update in class Component