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java.awt.image
Class SampleModel

java.lang.Object
  |
  +--java.awt.image.SampleModel

Direct Known Subclasses:

ComponentSampleModel, MultiPixelPackedSampleModel, SinglePixelPackedSampleModel

public abstract class SampleModel

extends Object

This abstract class defines an interface for extracting samples of pixels in an image. All image data is expressed as a collection of pixels. Each pixel consists of a number of samples. A sample is a datum for one band of an image. In the Java 2D API, all built-in image processing and display operators process samples which represent unsigned integral values.

A collection of pixels is represented as a Raster, which consists of a DataBuffer and a SampleModel. The SampleModel allows access to samples in the DataBuffer and may provide low-level information that a programmer can use to directly manipulate samples and pixels in the DataBuffer.

This class is generally a fall back method for dealing with images. More efficient code will cast the SampleModel to the appropriate subclass and extract the information needed to directly manipulate pixels in the DataBuffer.

See Also:

DataBuffer, Raster, ComponentSampleModel, PixelInterleavedSampleModel, BandedSampleModel, MultiPixelPackedSampleModel, SinglePixelPackedSampleModel

Field Summary

protected int	dataType Data type of the DataBuffer storing the pixel data.
protected int	height Height in pixels of the region of image data that this SampleModel describes.
protected int	numBands Number of bands of the image data that this SampleModel describes.
protected int	width Width in pixels of the region of image data that this SampleModel describes.

Constructor Summary

SampleModel(int dataType, int w, int h, int numBands)
Constructs a SampleModel with the specified parameters.

Method Summary

abstract SampleModel	createCompatibleSampleModel(int w, int h) Creates a SampleModel which describes data in this SampleModel's format, but with a different width and height.
abstract DataBuffer	createDataBuffer() Creates a DataBuffer that corresponds to this SampleModel.
abstract SampleModel	createSubsetSampleModel(int[] bands) Creates a new SampleModel with a subset of the bands of this SampleModel.
Object	getDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType.
abstract Object	getDataElements(int x, int y, Object obj, DataBuffer data) Returns data for a single pixel in a primitive array of type TransferType.
int	getDataType() Returns the data type of the DataBuffer storing the pixel data.
int	getHeight() Returns the height in pixels.
int	getNumBands() Returns the total number of bands of image data.
abstract int	getNumDataElements() Returns the number of data elements needed to transfer a pixel via the getDataElements and setDataElements methods.
double[]	getPixel(int x, int y, double[] dArray, DataBuffer data) Returns the samples for the specified pixel in an array of double.
float[]	getPixel(int x, int y, float[] fArray, DataBuffer data) Returns the samples for the specified pixel in an array of float.
int[]	getPixel(int x, int y, int[] iArray, DataBuffer data) Returns the samples for a specified pixel in an int array, one sample per array element.
double[]	getPixels(int x, int y, int w, int h, double[] dArray, DataBuffer data) Returns all samples for a rectangle of pixels in a double array, one sample per array element.
float[]	getPixels(int x, int y, int w, int h, float[] fArray, DataBuffer data) Returns all samples for a rectangle of pixels in a float array, one sample per array element.
int[]	getPixels(int x, int y, int w, int h, int[] iArray, DataBuffer data) Returns all samples for a rectangle of pixels in an int array, one sample per array element.
abstract int	getSample(int x, int y, int b, DataBuffer data) Returns the sample in a specified band for the pixel located at (x,y) as an int.
double	getSampleDouble(int x, int y, int b, DataBuffer data) Returns the sample in a specified band for a pixel located at (x,y) as a double.
float	getSampleFloat(int x, int y, int b, DataBuffer data) Returns the sample in a specified band for the pixel located at (x,y) as a float.
double[]	getSamples(int x, int y, int w, int h, int b, double[] dArray, DataBuffer data) Returns the samples for a specified band for a specified rectangle of pixels in a double array, one sample per array element.
float[]	getSamples(int x, int y, int w, int h, int b, float[] fArray, DataBuffer data) Returns the samples for a specified band for the specified rectangle of pixels in a float array, one sample per array element.
int[]	getSamples(int x, int y, int w, int h, int b, int[] iArray, DataBuffer data) Returns the samples for a specified band for the specified rectangle of pixels in an int array, one sample per array element.
abstract int[]	getSampleSize() Returns the size in bits of samples for all bands.
abstract int	getSampleSize(int band) Returns the size in bits of samples for the specified band.
int	getTransferType() Returns the TransferType used to transfer pixels via the getDataElements and setDataElements methods.
int	getWidth() Returns the width in pixels.
void	setDataElements(int x, int y, int w, int h, Object obj, DataBuffer data) Sets the data for a rectangle of pixels in the specified DataBuffer from a primitive array of type TransferType.
abstract void	setDataElements(int x, int y, Object obj, DataBuffer data) Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType.
void	setPixel(int x, int y, double[] dArray, DataBuffer data) Sets a pixel in the DataBuffer using a double array of samples for input.
void	setPixel(int x, int y, float[] fArray, DataBuffer data) Sets a pixel in the DataBuffer using a float array of samples for input.
void	setPixel(int x, int y, int[] iArray, DataBuffer data) Sets a pixel in the DataBuffer using an int array of samples for input.
void	setPixels(int x, int y, int w, int h, double[] dArray, DataBuffer data) Sets all samples for a rectangle of pixels from a double array containing one sample per array element.
void	setPixels(int x, int y, int w, int h, float[] fArray, DataBuffer data) Sets all samples for a rectangle of pixels from a float array containing one sample per array element.
void	setPixels(int x, int y, int w, int h, int[] iArray, DataBuffer data) Sets all samples for a rectangle of pixels from an int array containing one sample per array element.
void	setSample(int x, int y, int b, double s, DataBuffer data) Sets a sample in the specified band for the pixel located at (x,y) in the DataBuffer using a double for input.
void	setSample(int x, int y, int b, float s, DataBuffer data) Sets a sample in the specified band for the pixel located at (x,y) in the DataBuffer using a float for input.
abstract void	setSample(int x, int y, int b, int s, DataBuffer data) Sets a sample in the specified band for the pixel located at (x,y) in the DataBuffer using an int for input.
void	setSamples(int x, int y, int w, int h, int b, double[] dArray, DataBuffer data) Sets the samples in the specified band for the specified rectangle of pixels from a double array containing one sample per array element.
void	setSamples(int x, int y, int w, int h, int b, float[] fArray, DataBuffer data) Sets the samples in the specified band for the specified rectangle of pixels from a float array containing one sample per array element.
void	setSamples(int x, int y, int w, int h, int b, int[] iArray, DataBuffer data) Sets the samples in the specified band for the specified rectangle of pixels from an int array containing one sample per array element.

Methods inherited from class java.lang.Object

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

Field Detail

width

protected int width

Width in pixels of the region of image data that this SampleModel describes.

height

protected int height

Height in pixels of the region of image data that this SampleModel describes.

numBands

protected int numBands

Number of bands of the image data that this SampleModel describes.

dataType

protected int dataType

Data type of the DataBuffer storing the pixel data.

See Also:

DataBuffer

Constructor Detail

SampleModel

public SampleModel(int dataType,
                   int w,
                   int h,
                   int numBands)

Constructs a SampleModel with the specified parameters.

Parameters:

dataType - The data type of the DataBuffer storing the pixel data.

w - The width (in pixels) of the region of image data.

h - The height (in pixels) of the region of image data.

numBands - The number of bands of the image data.

Throws:

IllegalArgumentException - if w or h is not greater than 0

IllegalArgumentException - if the product of w and h is greater than Integer.MAX_VALUE

IllegalArgumentException - if dataType is not one of the supported data types

Method Detail

getWidth

public final int getWidth()

Returns the width in pixels.

getHeight

public final int getHeight()

Returns the height in pixels.

getNumBands

public final int getNumBands()

Returns the total number of bands of image data.

getNumDataElements

public abstract int getNumDataElements()

Returns the number of data elements needed to transfer a pixel via the getDataElements and setDataElements methods. When pixels are transferred via these methods, they may be transferred in a packed or unpacked format, depending on the implementation of the SampleModel. Using these methods, pixels are transferred as an array of getNumDataElements() elements of a primitive type given by getTransferType(). The TransferType may or may not be the same as the storage DataType.

See Also:

getDataElements(int, int, Object, DataBuffer), getDataElements(int, int, int, int, Object, DataBuffer), setDataElements(int, int, Object, DataBuffer), setDataElements(int, int, int, int, Object, DataBuffer), getTransferType()

getDataType

public final int getDataType()

Returns the data type of the DataBuffer storing the pixel data.

getTransferType

public int getTransferType()

Returns the TransferType used to transfer pixels via the getDataElements and setDataElements methods. When pixels are transferred via these methods, they may be transferred in a packed or unpacked format, depending on the implementation of the SampleModel. Using these methods, pixels are transferred as an array of getNumDataElements() elements of a primitive type given by getTransferType(). The TransferType may or may not be the same as the storage DataType. The TransferType will be one of the types defined in DataBuffer.

See Also:

getDataElements(int, int, Object, DataBuffer), getDataElements(int, int, int, int, Object, DataBuffer), setDataElements(int, int, Object, DataBuffer), setDataElements(int, int, int, int, Object, DataBuffer), getNumDataElements(), DataBuffer

getPixel

public int[] getPixel(int x,
                      int y,
                      int[] iArray,
                      DataBuffer data)

Returns the samples for a specified pixel in an int array, one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

iArray - If non-null, returns the samples in this array.

data - The DataBuffer containing the image data.

getDataElements

public abstract Object getDataElements(int x,
                                       int y,
                                       Object obj,
                                       DataBuffer data)

Returns data for a single pixel in a primitive array of type TransferType. For image data supported by the Java 2D API, this will be one of DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, or DataBuffer.TYPE_INT. Data may be returned in a packed format, thus increasing efficiency for data transfers. Generally, obj should be passed in as null, so that the Object will be created automatically and will be of the right primitive data type.

The following code illustrates transferring data for one pixel from DataBuffer db1, whose storage layout is described by SampleModel sm1, to DataBuffer db2, whose storage layout is described by SampleModel sm2. The transfer will generally be more efficient than using getPixel/setPixel.

 	     SampleModel sm1, sm2;
	     DataBuffer db1, db2;
 	     sm2.setDataElements(x, y, sm1.getDataElements(x, y, null, db1), db2);
 

Using getDataElements/setDataElements to transfer between two DataBuffer/SampleModel pairs is legitimate if the SampleModels have the same number of bands, corresponding bands have the same number of bits per sample, and the TransferTypes are the same.

If obj is non-null, it should be a primitive array of type TransferType. Otherwise, a ClassCastException is thrown. An ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds, or if obj is non-null and is not large enough to hold the pixel data.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

obj - If non-null, a primitive array in which to return the pixel data.

data - The DataBuffer containing the image data.

See Also:

getNumDataElements(), getTransferType(), DataBuffer

getDataElements

public Object getDataElements(int x,
                              int y,
                              int w,
                              int h,
                              Object obj,
                              DataBuffer data)

Returns the pixel data for the specified rectangle of pixels in a primitive array of type TransferType. For image data supported by the Java 2D API, this will be one of DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, or DataBuffer.TYPE_INT. Data may be returned in a packed format, thus increasing efficiency for data transfers. Generally, obj should be passed in as null, so that the Object will be created automatically and will be of the right primitive data type.

The following code illustrates transferring data for a rectangular region of pixels from DataBuffer db1, whose storage layout is described by SampleModel sm1, to DataBuffer db2, whose storage layout is described by SampleModel sm2. The transfer will generally be more efficient than using getPixels/setPixels.

 	     SampleModel sm1, sm2;
	     DataBuffer db1, db2;
 	     sm2.setDataElements(x, y, w, h, sm1.getDataElements(x, y, w,
                           h, null, db1), db2);
 

Using getDataElements/setDataElements to transfer between two DataBuffer/SampleModel pairs is legitimate if the SampleModels have the same number of bands, corresponding bands have the same number of bits per sample, and the TransferTypes are the same.

If obj is non-null, it should be a primitive array of type TransferType. Otherwise, a ClassCastException is thrown. An ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds, or if obj is non-null and is not large enough to hold the pixel data.

Parameters:

x - The minimum X coordinate of the pixel rectangle.

y - The minimum Y coordinate of the pixel rectangle.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

obj - If non-null, a primitive array in which to return the pixel data.

data - The DataBuffer containing the image data.

See Also:

getNumDataElements(), getTransferType(), DataBuffer

setDataElements

public abstract void setDataElements(int x,
                                     int y,
                                     Object obj,
                                     DataBuffer data)

Sets the data for a single pixel in the specified DataBuffer from a primitive array of type TransferType. For image data supported by the Java 2D API, this will be one of DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, or DataBuffer.TYPE_INT. Data in the array may be in a packed format, thus increasing efficiency for data transfers.

The following code illustrates transferring data for one pixel from DataBuffer db1, whose storage layout is described by SampleModel sm1, to DataBuffer db2, whose storage layout is described by SampleModel sm2. The transfer will generally be more efficient than using getPixel/setPixel.

 	     SampleModel sm1, sm2;
	     DataBuffer db1, db2;
 	     sm2.setDataElements(x, y, sm1.getDataElements(x, y, null, db1),
                           db2);
 

Using getDataElements/setDataElements to transfer between two DataBuffer/SampleModel pairs is legitimate if the SampleModels have the same number of bands, corresponding bands have the same number of bits per sample, and the TransferTypes are the same.

obj must be a primitive array of type TransferType. Otherwise, a ClassCastException is thrown. An ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds, or if obj is not large enough to hold the pixel data.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

obj - A primitive array containing pixel data.

data - The DataBuffer containing the image data.

See Also:

getNumDataElements(), getTransferType(), DataBuffer

setDataElements

public void setDataElements(int x,
                            int y,
                            int w,
                            int h,
                            Object obj,
                            DataBuffer data)

Sets the data for a rectangle of pixels in the specified DataBuffer from a primitive array of type TransferType. For image data supported by the Java 2D API, this will be one of DataBuffer.TYPE_BYTE, DataBuffer.TYPE_USHORT, or DataBuffer.TYPE_INT. Data in the array may be in a packed format, thus increasing efficiency for data transfers.

The following code illustrates transferring data for a rectangular region of pixels from DataBuffer db1, whose storage layout is described by SampleModel sm1, to DataBuffer db2, whose storage layout is described by SampleModel sm2. The transfer will generally be more efficient than using getPixels/setPixels.

 	     SampleModel sm1, sm2;
	     DataBuffer db1, db2;
 	     sm2.setDataElements(x, y, w, h, sm1.getDataElements(x, y, w, h,
                           null, db1), db2);
 

Using getDataElements/setDataElements to transfer between two DataBuffer/SampleModel pairs is legitimate if the SampleModels have the same number of bands, corresponding bands have the same number of bits per sample, and the TransferTypes are the same.

obj must be a primitive array of type TransferType. Otherwise, a ClassCastException is thrown. An ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds, or if obj is not large enough to hold the pixel data.

Parameters:

x - The minimum X coordinate of the pixel rectangle.

y - The minimum Y coordinate of the pixel rectangle.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

obj - A primitive array containing pixel data.

data - The DataBuffer containing the image data.

See Also:

getNumDataElements(), getTransferType(), DataBuffer

getPixel

public float[] getPixel(int x,
                        int y,
                        float[] fArray,
                        DataBuffer data)

Returns the samples for the specified pixel in an array of float. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

fArray - If non-null, returns the samples in this array.

data - The DataBuffer containing the image data.

getPixel

public double[] getPixel(int x,
                         int y,
                         double[] dArray,
                         DataBuffer data)

Returns the samples for the specified pixel in an array of double. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

dArray - If non-null, returns the samples in this array.

data - The DataBuffer containing the image data.

getPixels

public int[] getPixels(int x,
                       int y,
                       int w,
                       int h,
                       int[] iArray,
                       DataBuffer data)

Returns all samples for a rectangle of pixels in an int array, one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

iArray - If non-null, returns the samples in this array.

data - The DataBuffer containing the image data.

getPixels

public float[] getPixels(int x,
                         int y,
                         int w,
                         int h,
                         float[] fArray,
                         DataBuffer data)

Returns all samples for a rectangle of pixels in a float array, one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

fArray - If non-null, returns the samples in this array.

data - The DataBuffer containing the image data.

getPixels

public double[] getPixels(int x,
                          int y,
                          int w,
                          int h,
                          double[] dArray,
                          DataBuffer data)

Returns all samples for a rectangle of pixels in a double array, one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

dArray - If non-null, returns the samples in this array.

data - The DataBuffer containing the image data.

getSample

public abstract int getSample(int x,
                              int y,
                              int b,
                              DataBuffer data)

Returns the sample in a specified band for the pixel located at (x,y) as an int. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

b - The band to return.

data - The DataBuffer containing the image data.

getSampleFloat

public float getSampleFloat(int x,
                            int y,
                            int b,
                            DataBuffer data)

Returns the sample in a specified band for the pixel located at (x,y) as a float. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

b - The band to return.

data - The DataBuffer containing the image data.

getSampleDouble

public double getSampleDouble(int x,
                              int y,
                              int b,
                              DataBuffer data)

Returns the sample in a specified band for a pixel located at (x,y) as a double. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

b - The band to return.

data - The DataBuffer containing the image data.

getSamples

public int[] getSamples(int x,
                        int y,
                        int w,
                        int h,
                        int b,
                        int[] iArray,
                        DataBuffer data)

Returns the samples for a specified band for the specified rectangle of pixels in an int array, one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

b - The band to return.

iArray - If non-null, returns the samples in this array.

data - The DataBuffer containing the image data.

getSamples

public float[] getSamples(int x,
                          int y,
                          int w,
                          int h,
                          int b,
                          float[] fArray,
                          DataBuffer data)

Returns the samples for a specified band for the specified rectangle of pixels in a float array, one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

b - The band to return.

fArray - If non-null, returns the samples in this array.

data - The DataBuffer containing the image data.

getSamples

public double[] getSamples(int x,
                           int y,
                           int w,
                           int h,
                           int b,
                           double[] dArray,
                           DataBuffer data)

Returns the samples for a specified band for a specified rectangle of pixels in a double array, one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

b - The band to return.

dArray - If non-null, returns the samples in this array.

data - The DataBuffer containing the image data.

setPixel

public void setPixel(int x,
                     int y,
                     int[] iArray,
                     DataBuffer data)

Sets a pixel in the DataBuffer using an int array of samples for input. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

iArray - The input samples in an int array.

data - The DataBuffer containing the image data.

setPixel

public void setPixel(int x,
                     int y,
                     float[] fArray,
                     DataBuffer data)

Sets a pixel in the DataBuffer using a float array of samples for input. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

fArray - The input samples in a float array.

data - The DataBuffer containing the image data.

setPixel

public void setPixel(int x,
                     int y,
                     double[] dArray,
                     DataBuffer data)

Sets a pixel in the DataBuffer using a double array of samples for input.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

dArray - The input samples in a double array.

data - The DataBuffer containing the image data.

setPixels

public void setPixels(int x,
                      int y,
                      int w,
                      int h,
                      int[] iArray,
                      DataBuffer data)

Sets all samples for a rectangle of pixels from an int array containing one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

iArray - The input samples in an int array.

data - The DataBuffer containing the image data.

setPixels

public void setPixels(int x,
                      int y,
                      int w,
                      int h,
                      float[] fArray,
                      DataBuffer data)

Sets all samples for a rectangle of pixels from a float array containing one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

fArray - The input samples in a float array.

data - The DataBuffer containing the image data.

setPixels

public void setPixels(int x,
                      int y,
                      int w,
                      int h,
                      double[] dArray,
                      DataBuffer data)

Sets all samples for a rectangle of pixels from a double array containing one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

dArray - The input samples in a double array.

data - The DataBuffer containing the image data.

setSample

public abstract void setSample(int x,
                               int y,
                               int b,
                               int s,
                               DataBuffer data)

Sets a sample in the specified band for the pixel located at (x,y) in the DataBuffer using an int for input. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

b - The band to set.

s - The input sample as an int.

data - The DataBuffer containing the image data.

setSample

public void setSample(int x,
                      int y,
                      int b,
                      float s,
                      DataBuffer data)

Sets a sample in the specified band for the pixel located at (x,y) in the DataBuffer using a float for input. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

b - The band to set.

s - The input sample as a float.

data - The DataBuffer containing the image data.

setSample

public void setSample(int x,
                      int y,
                      int b,
                      double s,
                      DataBuffer data)

Sets a sample in the specified band for the pixel located at (x,y) in the DataBuffer using a double for input. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the pixel location.

y - The Y coordinate of the pixel location.

b - The band to set.

s - The input sample as a double.

data - The DataBuffer containing the image data.

setSamples

public void setSamples(int x,
                       int y,
                       int w,
                       int h,
                       int b,
                       int[] iArray,
                       DataBuffer data)

Sets the samples in the specified band for the specified rectangle of pixels from an int array containing one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

b - The band to set.

iArray - The input samples in an int array.

data - The DataBuffer containing the image data.

setSamples

public void setSamples(int x,
                       int y,
                       int w,
                       int h,
                       int b,
                       float[] fArray,
                       DataBuffer data)

Sets the samples in the specified band for the specified rectangle of pixels from a float array containing one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

b - The band to set.

fArray - The input samples in a float array.

data - The DataBuffer containing the image data.

setSamples

public void setSamples(int x,
                       int y,
                       int w,
                       int h,
                       int b,
                       double[] dArray,
                       DataBuffer data)

Sets the samples in the specified band for the specified rectangle of pixels from a double array containing one sample per array element. ArrayIndexOutOfBoundsException may be thrown if the coordinates are not in bounds.

Parameters:

x - The X coordinate of the upper left pixel location.

y - The Y coordinate of the upper left pixel location.

w - The width of the pixel rectangle.

h - The height of the pixel rectangle.

b - The band to set.

dArray - The input samples in a double array.

data - The DataBuffer containing the image data.

createCompatibleSampleModel

public abstract SampleModel createCompatibleSampleModel(int w,
                                                        int h)

Creates a SampleModel which describes data in this SampleModel's format, but with a different width and height.

createSubsetSampleModel

public abstract SampleModel createSubsetSampleModel(int[] bands)

Creates a new SampleModel with a subset of the bands of this SampleModel.

createDataBuffer

public abstract DataBuffer createDataBuffer()

Creates a DataBuffer that corresponds to this SampleModel. The DataBuffer's width and height will match this SampleModel's.

getSampleSize

public abstract int[] getSampleSize()

Returns the size in bits of samples for all bands.

getSampleSize

public abstract int getSampleSize(int band)

Returns the size in bits of samples for the specified band.