com.sun.j3d.utils.compression

Class CompressionStreamVertex

java.lang.Object

com.sun.j3d.utils.compression.CompressionStreamElement

com.sun.j3d.utils.compression.CompressionStreamVertex

 class CompressionStreamVertex
extends CompressionStreamElement

This class represents a vertex in a compression stream. It maintains both floating-point and quantized representations of the vertex position along with meshing and vertex replacement flags for line and surface primitives. If normals or colors are bundled with geometry vertices then instances of this class will also contain references to normal or color stream elements.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) CompressionStreamColor	color
private float	floatX
private float	floatY
private float	floatZ
private int	meshFlag
(package private) CompressionStreamNormal	normal
private int	stripFlag
private int	X
(package private) int	xAbsolute
private int	Y
(package private) int	yAbsolute
private int	Z
(package private) int	zAbsolute

Fields inherited from class com.sun.j3d.utils.compression.CompressionStreamElement

absolute, length, lengthMask, quantizationMask, shift

Constructor Summary

Constructors

Constructor and Description
CompressionStreamVertex(CompressionStream stream, Point3f p, Vector3f n, Color3f c, int stripFlag, int meshFlag) Create a CompressionStreamVertex with the given parameters.
CompressionStreamVertex(CompressionStream stream, Point3f p, Vector3f n, Color4f c, int stripFlag, int meshFlag) Create a CompressionStreamVertex with the given parameters.
CompressionStreamVertex(CompressionStream stream, Point3f p, Vector3f n, int stripFlag, int meshFlag) Create a CompressionStreamVertex with the given parameters.

Method Summary

Methods

Modifier and Type	Method and Description
(package private) void	outputCommand(HuffmanTable huffmanTable, CommandStream outputBuffer) Output the final compressed bits to the compression command stream.
(package private) void	quantize(CompressionStream stream, HuffmanTable huffmanTable) Quantize the floating point position to fixed point integer components of the specified number of bits.
java.lang.String	toString()

Methods inherited from class com.sun.j3d.utils.compression.CompressionStreamElement

computeLengthShift, computeLengthShift, computeLengthShift

Methods inherited from class java.lang.Object

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

Field Detail

X

private int X

Y

private int Y

Z

private int Z

meshFlag

private int meshFlag

stripFlag

private int stripFlag

floatX

private float floatX

floatY

private float floatY

floatZ

private float floatZ

xAbsolute

int xAbsolute

yAbsolute

int yAbsolute

zAbsolute

int zAbsolute

color

CompressionStreamColor color

normal

CompressionStreamNormal normal

Constructor Detail

CompressionStreamVertex

CompressionStreamVertex(CompressionStream stream,
                       Point3f p,
                       Vector3f n,
                       Color3f c,
                       int stripFlag,
                       int meshFlag)

Create a CompressionStreamVertex with the given parameters.

Parameters:

stream - CompressionStream associated with this vertex

p - position

n - normal bundled with this vertex or null if not bundled

c - color bundled with this vertex or null if not bundled

stripFlag - CompressionStream.RESTART, CompressionStream.REPLACE_OLDEST, or CompressionStream.REPLACE_MIDDLE

meshFlag - CompressionStream.MESH_PUSH or CompressionStream.NO_MESH_PUSH

CompressionStreamVertex

CompressionStreamVertex(CompressionStream stream,
                       Point3f p,
                       Vector3f n,
                       Color4f c,
                       int stripFlag,
                       int meshFlag)

Create a CompressionStreamVertex with the given parameters.

Parameters:

stream - CompressionStream associated with this vertex

p - position

n - normal bundled with this vertex or null if not bundled

c - color bundled with this vertex or null if not bundled

stripFlag - CompressionStream.RESTART, CompressionStream.REPLACE_OLDEST, or CompressionStream.REPLACE_MIDDLE

meshFlag - CompressionStream.MESH_PUSH or CompressionStream.NO_MESH_PUSH

CompressionStreamVertex

CompressionStreamVertex(CompressionStream stream,
                       Point3f p,
                       Vector3f n,
                       int stripFlag,
                       int meshFlag)

Create a CompressionStreamVertex with the given parameters.

Parameters:

stream - CompressionStream associated with this vertex

p - position

n - normal bundled with this vertex or null if not bundled

stripFlag - CompressionStream.RESTART, CompressionStream.REPLACE_OLDEST, or CompressionStream.REPLACE_MIDDLE

meshFlag - CompressionStream.MESH_PUSH or CompressionStream.NO_MESH_PUSH

Method Detail

quantize

void quantize(CompressionStream stream,
            HuffmanTable huffmanTable)

Quantize the floating point position to fixed point integer components of the specified number of bits. The bit length can range from 1 to 16.

Specified by:

quantize in class CompressionStreamElement

Parameters:

stream - CompressionStream associated with this element

table - HuffmanTable for collecting data about the quantized representation of this element

outputCommand

void outputCommand(HuffmanTable huffmanTable,
                 CommandStream outputBuffer)

Output the final compressed bits to the compression command stream.

Overrides:

outputCommand in class CompressionStreamElement

Parameters:

table - HuffmanTable mapping quantized representations to compressed encodings

output - CommandStream for collecting compressed output

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object