Class BoxBlur

java.lang.Object

javafx.scene.effect.Effect

javafx.scene.effect.BoxBlur

public class BoxBlur
extends Effect

A blur effect using a simple box filter kernel, with separately configurable sizes in both dimensions, and an iteration parameter that controls the quality of the resulting blur.

Example:

 BoxBlur boxBlur = new BoxBlur();
 boxBlur.setWidth(10);
 boxBlur.setHeight(3);
 boxBlur.setIterations(3);

 Text text = new Text();
 text.setText("Blurry Text!");
 text.setFill(Color.web("0x3b596d"));
 text.setFont(Font.font(null, FontWeight.BOLD, 50));
 text.setX(10);
 text.setY(50);
 text.setEffect(boxBlur);
 

The code above produces the following:

Since:

JavaFX 2.0

Property Summary

Properties

Type	Property	Description
final DoubleProperty	height	The vertical dimension of the blur effect.
final ObjectProperty<Effect>	input	The input for this Effect.
final IntegerProperty	iterations	The number of times to iterate the blur effect to improve its "quality" or "smoothness".
final DoubleProperty	width	The horizontal dimension of the blur effect.

Constructor Summary

Constructors

Constructor	Description
BoxBlur()	Creates a new instance of BoxBlur with default parameters.
BoxBlur(double width, double height, int iterations)	Creates a new instance of BoxBlur with specified width, height and iterations.

Method Summary

Modifier and Type	Method	Description
final double	getHeight()	Gets the value of the height property.
final Effect	getInput()	Gets the value of the input property.
final int	getIterations()	Gets the value of the iterations property.
final double	getWidth()	Gets the value of the width property.
final DoubleProperty	heightProperty()	The vertical dimension of the blur effect.
final ObjectProperty<Effect>	inputProperty()	The input for this Effect.
final IntegerProperty	iterationsProperty()	The number of times to iterate the blur effect to improve its "quality" or "smoothness".
final void	setHeight(double value)	Sets the value of the height property.
final void	setInput(Effect value)	Sets the value of the input property.
final void	setIterations(int value)	Sets the value of the iterations property.
final void	setWidth(double value)	Sets the value of the width property.
final DoubleProperty	widthProperty()	The horizontal dimension of the blur effect.

Methods declared in class java.lang.Object

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

Property Details

input

public final ObjectProperty<Effect> inputProperty

The input for this Effect. If set to null, or left unspecified, a graphical image of the Node to which the Effect is attached will be used as the input.

Default value:

null

See Also:

• getInput()
• setInput(Effect)
• inputProperty()

width

public final DoubleProperty widthProperty

The horizontal dimension of the blur effect. The color information for a given pixel will be spread across a Box of the indicated width centered over the pixel. Values less than or equal to 1 will not spread the color data beyond the pixel where it originated from and so will have no effect.

       Min:   0.0
       Max: 255.0
   Default:   5.0
  Identity:  <1.0
 

Default value:

5.0

See Also:

• getWidth()
• setWidth(double)
• widthProperty()

height

public final DoubleProperty heightProperty

The vertical dimension of the blur effect. The color information for a given pixel will be spread across a Box of the indicated height centered over the pixel. Values less than or equal to 1 will not spread the color data beyond the pixel where it originated from and so will have no effect.

       Min:   0.0
       Max: 255.0
   Default:   5.0
  Identity:  <1.0
 

Default value:

5.0

See Also:

• getHeight()
• setHeight(double)
• heightProperty()

iterations

public final IntegerProperty iterationsProperty

The number of times to iterate the blur effect to improve its "quality" or "smoothness". Iterating the effect 3 times approximates the quality of a Gaussian Blur to within 3%.

       Min:   0
       Max:   3
   Default:   1
  Identity:   0
 

Default value:

1

See Also:

• getIterations()
• setIterations(int)
• iterationsProperty()

Constructor Details

BoxBlur

public BoxBlur()

Creates a new instance of BoxBlur with default parameters.

BoxBlur

public BoxBlur(double width,
 double height,
 int iterations)

Creates a new instance of BoxBlur with specified width, height and iterations.

Parameters:

width - the horizontal dimension of the blur effect

height - the vertical dimension of the blur effect

iterations - the number of times to iterate the blur effect to improve its "quality" or "smoothness"

Method Details

setInput

public final void setInput(Effect value)

Sets the value of the input property.

Property description:

The input for this Effect. If set to null, or left unspecified, a graphical image of the Node to which the Effect is attached will be used as the input.

Default value:

null

Parameters:

value - the value for the input property

See Also:

• getInput()
• inputProperty()

getInput

public final Effect getInput()

Gets the value of the input property.

Property description:

The input for this Effect. If set to null, or left unspecified, a graphical image of the Node to which the Effect is attached will be used as the input.

Default value:

null

Returns:

the value of the input property

See Also:

• setInput(Effect)
• inputProperty()

inputProperty

public final ObjectProperty<Effect> inputProperty()

The input for this Effect. If set to null, or left unspecified, a graphical image of the Node to which the Effect is attached will be used as the input.

Default value:

null

Returns:

the input property

See Also:

• getInput()
• setInput(Effect)

setWidth

public final void setWidth(double value)

Sets the value of the width property.

Property description:

The horizontal dimension of the blur effect. The color information for a given pixel will be spread across a Box of the indicated width centered over the pixel. Values less than or equal to 1 will not spread the color data beyond the pixel where it originated from and so will have no effect.

       Min:   0.0
       Max: 255.0
   Default:   5.0
  Identity:  <1.0
 

Default value:

5.0

Parameters:

value - the value for the width property

See Also:

• getWidth()
• widthProperty()

getWidth

public final double getWidth()

Gets the value of the width property.

Property description:

The horizontal dimension of the blur effect. The color information for a given pixel will be spread across a Box of the indicated width centered over the pixel. Values less than or equal to 1 will not spread the color data beyond the pixel where it originated from and so will have no effect.

       Min:   0.0
       Max: 255.0
   Default:   5.0
  Identity:  <1.0
 

Default value:

5.0

Returns:

the value of the width property

See Also:

• setWidth(double)
• widthProperty()

widthProperty

public final DoubleProperty widthProperty()

The horizontal dimension of the blur effect. The color information for a given pixel will be spread across a Box of the indicated width centered over the pixel. Values less than or equal to 1 will not spread the color data beyond the pixel where it originated from and so will have no effect.

       Min:   0.0
       Max: 255.0
   Default:   5.0
  Identity:  <1.0
 

Default value:

5.0

Returns:

the width property

See Also:

• getWidth()
• setWidth(double)

setHeight

public final void setHeight(double value)

Sets the value of the height property.

Property description:

The vertical dimension of the blur effect. The color information for a given pixel will be spread across a Box of the indicated height centered over the pixel. Values less than or equal to 1 will not spread the color data beyond the pixel where it originated from and so will have no effect.

       Min:   0.0
       Max: 255.0
   Default:   5.0
  Identity:  <1.0
 

Default value:

5.0

Parameters:

value - the value for the height property

See Also:

• getHeight()
• heightProperty()

getHeight

public final double getHeight()

Gets the value of the height property.

Property description:

The vertical dimension of the blur effect. The color information for a given pixel will be spread across a Box of the indicated height centered over the pixel. Values less than or equal to 1 will not spread the color data beyond the pixel where it originated from and so will have no effect.

       Min:   0.0
       Max: 255.0
   Default:   5.0
  Identity:  <1.0
 

Default value:

5.0

Returns:

the value of the height property

See Also:

• setHeight(double)
• heightProperty()

heightProperty

public final DoubleProperty heightProperty()

The vertical dimension of the blur effect. The color information for a given pixel will be spread across a Box of the indicated height centered over the pixel. Values less than or equal to 1 will not spread the color data beyond the pixel where it originated from and so will have no effect.

       Min:   0.0
       Max: 255.0
   Default:   5.0
  Identity:  <1.0
 

Default value:

5.0

Returns:

the height property

See Also:

• getHeight()
• setHeight(double)

setIterations

public final void setIterations(int value)

Sets the value of the iterations property.

Property description:

The number of times to iterate the blur effect to improve its "quality" or "smoothness". Iterating the effect 3 times approximates the quality of a Gaussian Blur to within 3%.

       Min:   0
       Max:   3
   Default:   1
  Identity:   0
 

Default value:

1

Parameters:

value - the value for the iterations property

See Also:

• getIterations()
• iterationsProperty()

getIterations

public final int getIterations()

Gets the value of the iterations property.

Property description:

The number of times to iterate the blur effect to improve its "quality" or "smoothness". Iterating the effect 3 times approximates the quality of a Gaussian Blur to within 3%.

       Min:   0
       Max:   3
   Default:   1
  Identity:   0
 

Default value:

1

Returns:

the value of the iterations property

See Also:

• setIterations(int)
• iterationsProperty()

iterationsProperty

public final IntegerProperty iterationsProperty()

The number of times to iterate the blur effect to improve its "quality" or "smoothness". Iterating the effect 3 times approximates the quality of a Gaussian Blur to within 3%.

       Min:   0
       Max:   3
   Default:   1
  Identity:   0
 

Default value:

1

Returns:

the iterations property

See Also:

• getIterations()
• setIterations(int)