Class 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:

    The visual effect of BoxBlur on text

    Since:
    JavaFX 2.0
    • Property Detail

      • 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)
      • 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)
      • 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)
      • 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)
    • Constructor Detail

      • 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 Detail

      • setInput

        public final void setInput​(Effect value)
        Sets the value of the property input.
        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
      • getInput

        public final Effect getInput​()
        Gets the value of the property input.
        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
      • 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
        See Also:
        getInput(), setInput(Effect)
      • setWidth

        public final void setWidth​(double value)
        Sets the value of the property width.
        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
      • getWidth

        public final double getWidth​()
        Gets the value of the property width.
        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
      • 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
        See Also:
        getWidth(), setWidth(double)
      • setHeight

        public final void setHeight​(double value)
        Sets the value of the property height.
        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
      • getHeight

        public final double getHeight​()
        Gets the value of the property height.
        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
      • 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
        See Also:
        getHeight(), setHeight(double)
      • setIterations

        public final void setIterations​(int value)
        Sets the value of the property iterations.
        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
      • getIterations

        public final int getIterations​()
        Gets the value of the property iterations.
        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
      • 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
        See Also:
        getIterations(), setIterations(int)