androidx.constraintlayout.core.motion.utils

Class VelocityMatrix

java.lang.Object

androidx.constraintlayout.core.motion.utils.VelocityMatrix

public class VelocityMatrix
extends java.lang.Object

This is used to calculate the related velocity matrix for a post layout matrix

Constructor Summary

Constructors

Constructor and Description
VelocityMatrix()

Method Summary

Modifier and Type	Method and Description
void	applyTransform(float locationX, float locationY, int width, int height, float[] mAnchorDpDt) Apply the transform a velocity vector
void	clear()
void	setRotationVelocity(KeyCycleOscillator osc_r, float position)
void	setRotationVelocity(SplineSet rot, float position)
void	setScaleVelocity(KeyCycleOscillator osc_sx, KeyCycleOscillator osc_sy, float position)
void	setScaleVelocity(SplineSet scale_x, SplineSet scale_y, float position)
void	setTranslationVelocity(KeyCycleOscillator osc_x, KeyCycleOscillator osc_y, float position)
void	setTranslationVelocity(SplineSet trans_x, SplineSet trans_y, float position)

Methods inherited from class java.lang.Object

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

Constructor Detail

VelocityMatrix

public VelocityMatrix()

Method Detail

clear

public void clear()

setRotationVelocity

public void setRotationVelocity(SplineSet rot,
                                float position)

setTranslationVelocity

public void setTranslationVelocity(SplineSet trans_x,
                                   SplineSet trans_y,
                                   float position)

setScaleVelocity

public void setScaleVelocity(SplineSet scale_x,
                             SplineSet scale_y,
                             float position)

setRotationVelocity

public void setRotationVelocity(KeyCycleOscillator osc_r,
                                float position)

setTranslationVelocity

public void setTranslationVelocity(KeyCycleOscillator osc_x,
                                   KeyCycleOscillator osc_y,
                                   float position)

setScaleVelocity

public void setScaleVelocity(KeyCycleOscillator osc_sx,
                             KeyCycleOscillator osc_sy,
                             float position)

applyTransform

public void applyTransform(float locationX,
                           float locationY,
                           int width,
                           int height,
                           float[] mAnchorDpDt)

Apply the transform a velocity vector

Parameters:

locationX -

locationY -

width -

height -

mAnchorDpDt -