com.sun.j3d.loaders.lw3d

Class LwsFrame

java.lang.Object

com.sun.j3d.loaders.lw3d.TextfileParser

com.sun.j3d.loaders.lw3d.LwsFrame

 class LwsFrame
extends TextfileParser

This class is responsible for parsing the data in a Scene file associated with a single keyframe. This data includes the position, orientation, and scaling information, in addition to the frame number of that keyframe and some spline controls which are currently ignored.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) double	bank
(package private) double	bias
(package private) double	continuity
(package private) double	frameNumber
(package private) double	heading
(package private) int	linearValue
(package private) double	pitch
(package private) double	tension
(package private) double	x
(package private) double	xScale
(package private) double	y
(package private) double	yScale
(package private) double	z
(package private) double	zScale

Fields inherited from class com.sun.j3d.loaders.lw3d.TextfileParser

currentLevel, debugPrinter, EXCEPTION, LINE_TRACE, lineSeparatorChar, MISC, NONE, NUMBER, TIME, TRACE, VALUES, WORD

Constructor Summary

Constructors

Constructor and Description
LwsFrame(LwsFrame prevFrame, LwsFrame nextFrame, double ratio) Construct new frame that's in-between two given frames Ratio gives the interpolation value for how far in-between the new frame should be (0.5 is half-way, etc)
LwsFrame(LwsFrame prevFrame, LwsFrame frame1, LwsFrame frame2, LwsFrame nextFrame, double u, double adj0, double adj1) Using hermite interpolation construct a new frame that's in-between two given frames.
LwsFrame(java.io.StreamTokenizer st) Constructor: parses and stores all data associated with a particular keyframe

Method Summary

Methods

Modifier and Type	Method and Description
(package private) double	computeInterpolation(double[] value, double dd0a, double dd0b, double ds1a, double ds1b, double adj0, double adj1, double h1, double h2, double h3, double h4)
(package private) double	getBank()
(package private) double	getFrameNum()
(package private) double	getHeading()
(package private) double	getPitch()
(package private) Point3f	getPosition()
(package private) Point3f	getScale()
(package private) void	printVals()
(package private) void	setMatrix(Matrix4d mat) Sets the given matrix to contain the position, orientation, and scale values for the keyframe
(package private) void	setRotationMatrix(Matrix4d mat) Sets the given matrix to contain the orientation for this keyframe

Methods inherited from class com.sun.j3d.loaders.lw3d.TextfileParser

checkString, checkType, debugOutput, debugOutputLn, getAndCheckString, getName, getNumber, getString, isCurrentToken, skip, skipUntilString

Methods inherited from class java.lang.Object

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

Field Detail

x

double x

y

double y

z

double z

heading

double heading

pitch

double pitch

bank

double bank

xScale

double xScale

yScale

double yScale

zScale

double zScale

frameNumber

double frameNumber

linearValue

int linearValue

tension

double tension

continuity

double continuity

bias

double bias

Constructor Detail

LwsFrame

LwsFrame(java.io.StreamTokenizer st)

Constructor: parses and stores all data associated with a particular keyframe

LwsFrame

LwsFrame(LwsFrame prevFrame,
        LwsFrame nextFrame,
        double ratio)

Construct new frame that's in-between two given frames Ratio gives the interpolation value for how far in-between the new frame should be (0.5 is half-way, etc)

LwsFrame

LwsFrame(LwsFrame prevFrame,
        LwsFrame frame1,
        LwsFrame frame2,
        LwsFrame nextFrame,
        double u,
        double adj0,
        double adj1)

Using hermite interpolation construct a new frame that's in-between two given frames. We also need to be given a frame before the first frame and a frame after the second frame. The calling function will make sure that we get the four appropriate frames. Ratio gives the interpolation value for how far in-between the new frame should be. (.5 is half-way, etc.)

Method Detail

computeInterpolation

double computeInterpolation(double[] value,
                          double dd0a,
                          double dd0b,
                          double ds1a,
                          double ds1b,
                          double adj0,
                          double adj1,
                          double h1,
                          double h2,
                          double h3,
                          double h4)

getHeading

double getHeading()

getPitch

double getPitch()

getBank

double getBank()

setMatrix

void setMatrix(Matrix4d mat)

Sets the given matrix to contain the position, orientation, and scale values for the keyframe

setRotationMatrix

void setRotationMatrix(Matrix4d mat)

Sets the given matrix to contain the orientation for this keyframe

getPosition

Point3f getPosition()

getScale

Point3f getScale()

getFrameNum

double getFrameNum()

printVals

void printVals()