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Préférences
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| JavaTM 2 Platform Std. Ed. v1.5.0
java.awt.image
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| Field Summary | |
|---|---|
protected int[] |
bandOffsets
Offsets for all bands in data array elements. |
protected int[] |
bankIndices
Index for each bank storing a band of image data. |
protected int |
numBands
The number of bands in this ComponentSampleModel. |
protected int |
numBanks
The number of banks in this ComponentSampleModel. |
protected int |
pixelStride
Pixel stride (in data array elements) of the region of image data described by this ComponentSampleModel. |
protected int |
scanlineStride
Line stride (in data array elements) of the region of image data described by this ComponentSampleModel. |
| Fields inherited from class java.awt.image.SampleModel |
|---|
dataType, height, width |
| Constructor Summary | |
|---|---|
ComponentSampleModel(int dataType,
int w,
int h,
int pixelStride,
int scanlineStride,
int[] bandOffsets)
Constructs a ComponentSampleModel with the specified parameters. |
|
ComponentSampleModel(int dataType,
int w,
int h,
int pixelStride,
int scanlineStride,
int[] bankIndices,
int[] bandOffsets)
Constructs a ComponentSampleModel with the specified parameters. |
|
| Method Summary | |
|---|---|
SampleModel |
createCompatibleSampleModel(int w,
int h)
Creates a new ComponentSampleModel with the specified
width and height. |
DataBuffer |
createDataBuffer()
Creates a DataBuffer that corresponds to this
ComponentSampleModel. |
SampleModel |
createSubsetSampleModel(int[] bands)
Creates a new ComponentSampleModel with a subset of the bands of this ComponentSampleModel. |
boolean |
equals(Object o)
Indicates whether some other object is "equal to" this one. |
int[] |
getBandOffsets()
Returns the band offset for all bands. |
int[] |
getBankIndices()
Returns the bank indices for all bands. |
Object |
getDataElements(int x,
int y,
Object obj,
DataBuffer data)
Returns data for a single pixel in a primitive array of type TransferType. |
int |
getNumDataElements()
Returns the number of data elements needed to transfer a pixel with the getDataElements(int, int, Object, DataBuffer) and
setDataElements(int, int, Object, DataBuffer)
methods. |
int |
getOffset(int x,
int y)
Gets the offset for the first band of pixel (x,y). |
int |
getOffset(int x,
int y,
int b)
Gets the offset for band b of pixel (x,y). |
int[] |
getPixel(int x,
int y,
int[] iArray,
DataBuffer data)
Returns all samples for the specified pixel in an int array, one sample per array element. |
int[] |
getPixels(int x,
int y,
int w,
int h,
int[] iArray,
DataBuffer data)
Returns all samples for the specified rectangle of pixels in an int array, one sample per array element. |
int |
getPixelStride()
Returns the pixel stride of this ComponentSampleModel. |
int |
getSample(int x,
int y,
int b,
DataBuffer data)
Returns as int the sample in a specified band for the pixel located at (x,y). |
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. |
int[] |
getSamples(int x,
int y,
int w,
int h,
int b,
int[] iArray,
DataBuffer data)
Returns the samples in a specified band for the specified rectangle of pixels in an int array, one sample per data array element. |
int[] |
getSampleSize()
Returns the number of bits per sample for all bands. |
int |
getSampleSize(int band)
Returns the number of bits per sample for the specified band. |
int |
getScanlineStride()
Returns the scanline stride of this ComponentSampleModel. |
int |
hashCode()
Returns a hash code value for the object. |
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,
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,
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. |
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,
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 data array element. |
| Methods inherited from class java.awt.image.SampleModel |
|---|
getDataElements, getDataType, getHeight, getNumBands, getPixel, getPixel, getPixels, getPixels, getSamples, getSamples, getTransferType, getWidth, setDataElements, setPixel, setPixel, setPixels, setPixels, setSamples, setSamples |
| Methods inherited from class java.lang.Object |
|---|
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected int[] bandOffsets
protected int[] bankIndices
protected int numBands
ComponentSampleModel.
protected int numBanks
ComponentSampleModel.
protected int scanlineStride
protected int pixelStride
| Constructor Detail |
|---|
public ComponentSampleModel(int dataType,
int w,
int h,
int pixelStride,
int scanlineStride,
int[] bandOffsets)
dataType - the data type for storing samplesw - the width (in pixels) of the region of
image data describedh - the height (in pixels) of the region of
image data describedpixelStride - the pixel stride of the region of image
data describedscanlineStride - the line stride of the region of image
data describedbandOffsets - the offsets of all bands
IllegalArgumentException - if w or
h is not greater than 0
IllegalArgumentException - if pixelStride
is less than 0
IllegalArgumentException - if scanlineStride
is less than 0
IllegalArgumentException - if numBands
is less than 1
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
public ComponentSampleModel(int dataType,
int w,
int h,
int pixelStride,
int scanlineStride,
int[] bankIndices,
int[] bandOffsets)
dataType - the data type for storing samplesw - the width (in pixels) of the region of
image data describedh - the height (in pixels) of the region of
image data describedpixelStride - the pixel stride of the region of image
data describedscanlineStride - The line stride of the region of image
data describedbankIndices - the bank indices of all bandsbandOffsets - the band offsets of all bands
IllegalArgumentException - if w or
h is not greater than 0
IllegalArgumentException - if pixelStride
is less than 0
IllegalArgumentException - if scanlineStride
is less than 0
IllegalArgumentException - if the length of
bankIndices does not equal the length of
bankOffsets
IllegalArgumentException - if any of the bank indices
of bandIndices is less than 0
IllegalArgumentException - if dataType is not
one of the supported data types| Method Detail |
|---|
public SampleModel createCompatibleSampleModel(int w, int h)
ComponentSampleModel with the specified
width and height. The new SampleModel will have the same
number of bands, storage data type, interleaving scheme, and
pixel stride as this SampleModel.
createCompatibleSampleModel in class SampleModelw - the width of the resulting SampleModelh - the height of the resulting SampleModel
ComponentSampleModel with the specified size
IllegalArgumentException - if w or
h is not greater than 0public SampleModel createSubsetSampleModel(int[] bands)
createSubsetSampleModel in class SampleModelbands - a subset of bands from this
ComponentSampleModel
ComponentSampleModel created with a subset
of bands from this ComponentSampleModel.public DataBuffer createDataBuffer()
DataBuffer that corresponds to this
ComponentSampleModel.
The DataBuffer object's data type, number of banks,
and size are be consistent with this ComponentSampleModel.
createDataBuffer in class SampleModelDataBuffer whose data type, number of banks
and size are consistent with this
ComponentSampleModel.
public int getOffset(int x,
int y)
DataBuffer
data with a ComponentSampleModel
csm as
data.getElem(csm.getOffset(x, y));
x, y - the location of the pixel
public int getOffset(int x,
int y,
int b)
b can be retrieved from a
DataBuffer data
with a ComponentSampleModel csm as
data.getElem(csm.getOffset(x, y, b));
x, y - the location of the specified pixelb - the specified band
public final int[] getSampleSize()
getSampleSize in class SampleModelpublic final int getSampleSize(int band)
getSampleSize in class SampleModelband - the specified band
public final int[] getBankIndices()
public final int[] getBandOffsets()
public final int getScanlineStride()
ComponentSampleModel.public final int getPixelStride()
ComponentSampleModel.public final int getNumDataElements()
getDataElements(int, int, Object, DataBuffer) and
setDataElements(int, int, Object, DataBuffer)
methods.
For a ComponentSampleModel, this is identical to the
number of bands.
getNumDataElements in class SampleModelgetDataElements and
setDataElements methods.SampleModel.getNumDataElements(),
SampleModel.getNumBands()public Object getDataElements(int x, int y, Object obj, DataBuffer data)
TransferType. For a ComponentSampleModel,
this is the same as the data type, and samples are returned
one per array element. Generally, obj should
be passed in as null, so that the Object
is created automatically and is the right primitive data type.
The following code illustrates transferring data for one pixel from
DataBuffer db1, whose storage layout is
described by ComponentSampleModel csm1,
to DataBuffer db2, whose storage layout
is described by ComponentSampleModel csm2.
The transfer is usually more efficient than using
getPixel and setPixel.
ComponentSampleModel csm1, csm2;
DataBufferInt db1, db2;
csm2.setDataElements(x, y,
csm1.getDataElements(x, y, null, db1), db2);
Using getDataElements and setDataElements
to transfer between two DataBuffer/SampleModel
pairs is legitimate if the SampleModel objects 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 not null, it should be a
primitive array of type TransferType.
Otherwise, a ClassCastException is thrown. An
ArrayIndexOutOfBoundsException might be thrown if the
coordinates are not in bounds, or if obj is not
null and is not large enough to hold
the pixel data.
getDataElements in class SampleModelx, y - the coordinates of the pixel locationobj - if non-null, a primitive array
in which to return the pixel datadata - the DataBuffer containing the image data
NullPointerException - if data is null.
ArrayIndexOutOfBoundsException - if the coordinates are
not in bounds, or if obj is too small to hold the ouput.setDataElements(int, int, Object, DataBuffer)
public int[] getPixel(int x,
int y,
int[] iArray,
DataBuffer data)
ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
getPixel in class SampleModelx, y - The coordinates of the pixel locationiArray - If non-null, returns the samples in this arraydata - The DataBuffer containing the image data
NullPointerException - if data is null.
ArrayIndexOutOfBoundsException - if the coordinates are
not in bounds, or if iArray is too small to hold the output.setPixel(int, int, int[], DataBuffer)
public int[] getPixels(int x,
int y,
int w,
int h,
int[] iArray,
DataBuffer data)
ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
getPixels in class SampleModelx, y - the coordinates of the upper left pixel locationw - The width of the pixel rectangleh - The height of the pixel rectangleiArray - If non-null, returns the samples in this arraydata - The DataBuffer containing the image data
setPixels(int, int, int, int, int[], DataBuffer)
public int getSample(int x,
int y,
int b,
DataBuffer data)
ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
getSample in class SampleModelx, y - the coordinates of the pixel locationb - the band to returndata - the DataBuffer containing the image data
setSample(int, int, int, int, DataBuffer)
public float getSampleFloat(int x,
int y,
int b,
DataBuffer data)
ArrayIndexOutOfBoundsException might be
thrown if the coordinates are not in bounds.
getSampleFloat in class SampleModelx, y - The coordinates of the pixel locationb - The band to returndata - The DataBuffer containing the image data
public double getSampleDouble(int x,
int y,
int b,
DataBuffer data)
ArrayIndexOutOfBoundsException might be
thrown if the coordinates are not in bounds.
getSampleDouble in class SampleModelx, y - The coordinates of the pixel locationb - The band to returndata - The DataBuffer containing the image data
public int[] getSamples(int x,
int y,
int w,
int h,
int b,
int[] iArray,
DataBuffer data)
ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
getSamples in class SampleModelx, y - the coordinates of the upper left pixel locationw - the width of the pixel rectangleh - the height of the pixel rectangleb - the band to returniArray - if non-null, returns the samples
in this arraydata - the DataBuffer containing the image data
setSamples(int, int, int, int, int, int[], DataBuffer)
public void setDataElements(int x,
int y,
Object obj,
DataBuffer data)
DataBuffer from a primitive array of type
TransferType. For a ComponentSampleModel,
this is the same as the data type, and samples are transferred
one per array element.
The following code illustrates transferring data for one pixel from
DataBuffer db1, whose storage layout is
described by ComponentSampleModel csm1,
to DataBuffer db2, whose storage layout
is described by ComponentSampleModel csm2.
The transfer is usually more efficient than using
getPixel and setPixel.
ComponentSampleModel csm1, csm2;
DataBufferInt db1, db2;
csm2.setDataElements(x, y, csm1.getDataElements(x, y, null, db1),
db2);
Using getDataElements and setDataElements
to transfer between two DataBuffer/SampleModel pairs
is legitimate if the SampleModel objects have
the same number of bands, corresponding bands have the same number of
bits per sample, and the TransferTypes are the same.
A ClassCastException is thrown if obj is not
a primitive array of type TransferType.
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds, or if obj is not large
enough to hold the pixel data.
setDataElements in class SampleModelx, y - the coordinates of the pixel locationobj - a primitive array containing pixel datadata - the DataBuffer containing the image datagetDataElements(int, int, Object, DataBuffer)
public void setPixel(int x,
int y,
int[] iArray,
DataBuffer data)
DataBuffer using an int array of
samples for input. An ArrayIndexOutOfBoundsException
might be thrown if the coordinates are
not in bounds.
setPixel in class SampleModelx, y - The coordinates of the pixel locationiArray - The input samples in an int arraydata - The DataBuffer containing the image datagetPixel(int, int, int[], DataBuffer)
public void setPixels(int x,
int y,
int w,
int h,
int[] iArray,
DataBuffer data)
ArrayIndexOutOfBoundsException might be thrown if the
coordinates are not in bounds.
setPixels in class SampleModelx, y - The coordinates of the upper left pixel locationw - The width of the pixel rectangleh - The height of the pixel rectangleiArray - The input samples in an int arraydata - The DataBuffer containing the image datagetPixels(int, int, int, int, int[], DataBuffer)
public void setSample(int x,
int y,
int b,
int s,
DataBuffer data)
DataBuffer using an int for input.
An ArrayIndexOutOfBoundsException might be thrown if the
coordinates are not in bounds.
setSample in class SampleModelx, y - the coordinates of the pixel locationb - the band to sets - the input sample as an intdata - the DataBuffer containing the image datagetSample(int, int, int, DataBuffer)
public void setSample(int x,
int y,
int b,
float s,
DataBuffer data)
DataBuffer using a float for input.
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
setSample in class SampleModelx, y - The coordinates of the pixel locationb - The band to sets - The input sample as a floatdata - The DataBuffer containing the image datagetSample(int, int, int, DataBuffer)
public void setSample(int x,
int y,
int b,
double s,
DataBuffer data)
DataBuffer using a double for input.
An ArrayIndexOutOfBoundsException might be thrown if
the coordinates are not in bounds.
setSample in class SampleModelx, y - The coordinates of the pixel locationb - The band to sets - The input sample as a doubledata - The DataBuffer containing the image datagetSample(int, int, int, DataBuffer)
public void setSamples(int x,
int y,
int w,
int h,
int b,
int[] iArray,
DataBuffer data)
ArrayIndexOutOfBoundsException might be thrown if the
coordinates are not in bounds.
setSamples in class SampleModelx, y - The coordinates of the upper left pixel locationw - The width of the pixel rectangleh - The height of the pixel rectangleb - The band to setiArray - The input samples in an int arraydata - The DataBuffer containing the image datagetSamples(int, int, int, int, int, int[], DataBuffer)public boolean equals(Object o)
Object
The equals method implements an equivalence relation
on non-null object references:
x, x.equals(x) should return
true.
x and y, x.equals(y)
should return true if and only if
y.equals(x) returns true.
x, y, and z, if
x.equals(y) returns true and
y.equals(z) returns true, then
x.equals(z) should return true.
x and y, multiple invocations of
x.equals(y) consistently return true
or consistently return false, provided no
information used in equals comparisons on the
objects is modified.
x,
x.equals(null) should return false.
The equals method for class Object implements
the most discriminating possible equivalence relation on objects;
that is, for any non-null reference values x and
y, this method returns true if and only
if x and y refer to the same object
(x == y has the value true).
Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.
o - the reference object with which to compare.
true if this object is the same as the obj
argument; false otherwise.Object.hashCode(),
Hashtablepublic int hashCode()
Objectjava.util.Hashtable.
The general contract of hashCode is:
hashCode method on each of
the two objects must produce the same integer result.
Object.equals(java.lang.Object)
method, then calling the hashCode method on each of the
two objects must produce distinct integer results. However, the
programmer should be aware that producing distinct integer results
for unequal objects may improve the performance of hashtables.
As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the JavaTM programming language.)
Object.equals(java.lang.Object),
Hashtable