[Chapter 21] 21.14 java.awt.image.ReplicateScaleFilter (JDK 1.1)
Author: David Flanagan
Date: Thu Jul 31 16:15:57 1997

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| Chapter 21 The java.awt.image Package |

## 21.14 java.awt.image.ReplicateScaleFilter (JDK 1.1)

###

This class implements an `ImageFilter` that scales an image to a specified pixel size. It uses a very simple scaling algorithm in which rows and columns of image pixels are duplicated or omitted as necessary to achieve the desired size. See `AreaAveragingScaleFilter` for a scaling filter that results in smoother images.

The methods of this class are `ImageConsumer` methods used for communication between the image filter and the `FilteredImageSource` that uses it. Applications do not usually call these methods directly.

The easiest way to use this filter is to call `Image.getScaledInstance()`, specifying an appropriate hint constant.

    public class ReplicateScaleFilter extends ImageFilter {
        // Public Constructor
                public ReplicateScaleFilter(int width, int height);
        // Protected Instance Variables
                protected int destHeight;
                protected int destWidth;
                protected Object outpixbuf;
                protected int srcHeight;
                protected int srcWidth;
                protected int[] srccols;
                protected int[] srcrows;
        // Public Instance Methods
                public void setDimensions(int w, int h);  // Overrides ImageFilter
                public void setPixels(int x, int y, int w, int h, ColorModel model,
                public void setPixels'u'byte[] pixels, int off, int scansize);  // Overrides ImageFilter
                public void setPixels(int x, int y, int w, int h, ColorModel model,
                public void setPixels'u'int[] pixels, int off, int scansize);  // Overrides ImageFilter
                public void setProperties(Hashtable props);  // Overrides ImageFilter
    }

### Hierarchy:

`Object->ImageFilter(ImageConsumer, Cloneable)->ReplicateScaleFilter`

### Extended By:

`AreaAveragingScaleFilter`

java.awt.image.RGBImageFilter (JDK 1.0) |  | The java.awt.peer Package