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java.lang.Object | +--javax.media.j3d.SceneGraphObject | +--javax.media.j3d.NodeComponent | +--javax.media.j3d.ImageComponent
Abstract class that is used to define 2D or 3D ImageComponent classes used in a Java 3D scene graph. This is used for texture images, background images and raster components of Shape3D nodes.
Note that all color fields are treated as unsigned values, even though Java does not directly support unsigned variables. This means, for example, that an ImageComponent using a format of FORMAT_RGB5 can represent red, green, and blue values between 0 and 31, while an ImageComponent using a format of FORMAT_RGB8 can represent color values between 0 and 255. Even when byte values are used to create a BufferedImage with 8-bit color components, the resulting colors (bytes) are interpreted as if they were unsigned. Values greater than 127 can be assigned to a byte variable using a type cast. For example:
Field Summary | |
static int |
ALLOW_FORMAT_READ
Specifies that this ImageComponent object allows reading its format component information. |
static int |
ALLOW_IMAGE_READ
Specifies that this ImageComponent object allows reading its image component information. |
static int |
ALLOW_SIZE_READ
Specifies that this ImageComponent object allows reading its size component information (width, height, and depth). |
static int |
FORMAT_CHANNEL8
Specifies that each pixel contains 1 8-bit channel: it can be used for only luminance or only alpha or only intensity |
static int |
FORMAT_LUM4_ALPHA4
Specifies that each pixel contains 2 4-bit channels:one each for luminance and alpha. |
static int |
FORMAT_LUM8_ALPHA8
Specifies that each pixel contains 2 8-bit channels:one each for luminance and alpha |
static int |
FORMAT_R3_G3_B2
Specifies that each pixel contains 2 3-bit channels:one each for red, green, and 1 2-bit channel for blue. |
static int |
FORMAT_RGB
Specifies that each pixel contains 3 8-bit channels:one each for red, green, blue. |
static int |
FORMAT_RGB4
Specifies that each pixel contains 3 4-bit channels:one each for red, green, blue. |
static int |
FORMAT_RGB5
Specifies that each pixel contains 3 5-bit channels:one each for red, green, blue. |
static int |
FORMAT_RGB5_A1
Specifies that each pixel contains 3 5-bit channels:one each for red, green, blue and 1 1-bit channel for alpha |
static int |
FORMAT_RGB8
Specifies that each pixel contains 3 8-bit channels:one each for red, green, blue. |
static int |
FORMAT_RGBA
Specifies that each pixel contains 4 8-bit channels:one each for red, green, blue, alpha. |
static int |
FORMAT_RGBA4
Specifies that each pixel contains 4 4-bit channels:one each for red, green, blue, alpha. |
static int |
FORMAT_RGBA8
Specifies that each pixel contains 4 8-bit channels:one each for red, green, blue, alpha. |
Constructor Summary | |
ImageComponent(int format,
int width,
int height)
Constructs an image component object using the specified format, width, and height. |
Method Summary | |
int |
getFormat()
Retrieves the format of this image component object. |
int |
getHeight()
Retrieves the height of this image component object. |
int |
getWidth()
Retrieves the width of this image component object. |
Methods inherited from class javax.media.j3d.NodeComponent |
cloneNodeComponent,
duplicateNodeComponent,
getDuplicateOnCloneTree,
setDuplicateOnCloneTree |
Methods inherited from class javax.media.j3d.SceneGraphObject |
clearCapability,
duplicateSceneGraphObject,
getCapability,
getUserData,
isCompiled,
isLive,
setCapability,
setUserData |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
Field Detail |
public static final int FORMAT_RGB
public static final int FORMAT_RGBA
public static final int FORMAT_RGB8
public static final int FORMAT_RGBA8
public static final int FORMAT_RGB5
public static final int FORMAT_RGB5_A1
public static final int FORMAT_RGB4
public static final int FORMAT_RGBA4
public static final int FORMAT_LUM4_ALPHA4
public static final int FORMAT_LUM8_ALPHA8
public static final int FORMAT_R3_G3_B2
public static final int FORMAT_CHANNEL8
public static final int ALLOW_SIZE_READ
public static final int ALLOW_FORMAT_READ
public static final int ALLOW_IMAGE_READ
Constructor Detail |
public ImageComponent(int format, int width, int height)
format
- the image component format, one of: FORMAT_RGB,
FORMAT_RGBA etc.width
- the number of columns of pixels in this image component
objectheight
- the number of rows of pixels in this image component
objectMethod Detail |
public final int getWidth()
public final int getHeight()
public final int getFormat()
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