程序包 ohos.agp.components

类 ScaleInfo

java.lang.Object

ohos.agp.components.ScaleInfo

public class ScaleInfo
extends Object

Stores the data of identified zooming gestures.

从以下版本开始:

3

字段概要

字段

限定符和类型	字段	说明
double	horizontalScale	Indicates the horizontal zooming amount since the start of zooming.
double	rotation	Indicates the rotation degree after zooming.
double	scale	Indicates the scaling amount since the start of zooming.
Point	startPoint	Indicates the primary point of a zooming gesture.
Point	updatePoint	Indicates the secondary point of a zooming gesture.
double	verticalScale	Indicates the vertical zooming amount since the start of zooming.
double	xVelocity	Indicates the horizontal velocity (pixels per second) of start-point at the end of scale gesture.
double	xVelocitySecondary	Indicates the horizontal velocity (pixels per second) of update-point at the end of scale gesture.
double	yVelocity	Indicates the vertical velocity (pixels per second) of start-point at the end of scale gesture.
double	yVelocitySecondary	Indicates the vertical velocity (pixels per second) of update-point at the end of scale gesture.

构造器概要

构造器

构造器	说明
ScaleInfo(Point startPoint, Point updatePoint, double scale, double horizontalScale, double verticalScale, double rotation, double xVelocity, double yVelocity)	Provides information about zooming gestures.
ScaleInfo(Point primaryPoint, Point secondaryPoint, double scale, double horizontalScale, double verticalScale, double rotation, double xVelocity, double yVelocity, double xVelocity2, double yVelocity2)	Provides information about zooming gestures.

方法概要

从类继承的方法 java.lang.Object

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

字段详细资料

horizontalScale

public final double horizontalScale

Indicates the horizontal zooming amount since the start of zooming.

rotation

public final double rotation

Indicates the rotation degree after zooming.

scale

public final double scale

Indicates the scaling amount since the start of zooming.

startPoint

public final Point startPoint

Indicates the primary point of a zooming gesture.

updatePoint

public final Point updatePoint

Indicates the secondary point of a zooming gesture.

verticalScale

public final double verticalScale

Indicates the vertical zooming amount since the start of zooming.

xVelocity

public final double xVelocity

Indicates the horizontal velocity (pixels per second) of start-point at the end of scale gesture.

xVelocitySecondary

public final double xVelocitySecondary

Indicates the horizontal velocity (pixels per second) of update-point at the end of scale gesture.

yVelocity

public final double yVelocity

Indicates the vertical velocity (pixels per second) of start-point at the end of scale gesture.

yVelocitySecondary

public final double yVelocitySecondary

Indicates the vertical velocity (pixels per second) of update-point at the end of scale gesture.

构造器详细资料

ScaleInfo

public ScaleInfo(Point startPoint,
                 Point updatePoint,
                 double scale,
                 double horizontalScale,
                 double verticalScale,
                 double rotation,
                 double xVelocity,
                 double yVelocity)

Provides information about zooming gestures. Not in use any longer

参数:

startPoint - Indicates the start point of zooming gesture.

updatePoint - Indicates the update point of zooming gesture.

scale - Indicates the gesture zooming scale.

horizontalScale - Indicates the horizontal zooming scale.

verticalScale - Indicates the vertical zooming scale.

rotation - Indicates the rotation angle.

xVelocity - Indicates the X-axis velocity, in unit of pixels per second.

yVelocity - Indicates the Y-axis velocity, in unit of pixels per second.

ScaleInfo

public ScaleInfo(Point primaryPoint,
                 Point secondaryPoint,
                 double scale,
                 double horizontalScale,
                 double verticalScale,
                 double rotation,
                 double xVelocity,
                 double yVelocity,
                 double xVelocity2,
                 double yVelocity2)

Provides information about zooming gestures. Called by reflection from native.

参数:

primaryPoint - Indicates the primary point of zooming gesture.

secondaryPoint - Indicates the secondary point of zooming gesture.

scale - Indicates the gesture zooming scale.

horizontalScale - Indicates the horizontal zooming scale.

verticalScale - Indicates the vertical zooming scale.

rotation - Indicates the rotation angle.

xVelocity - Indicates the primary point X-axis velocity, in unit of pixels per second.

yVelocity - Indicates the primary point Y-axis velocity, in unit of pixels per second.

xVelocity2 - Indicates the secondary point X-axis velocity, in unit of pixels per second.

yVelocity2 - Indicates the secondary point Y-axis velocity, in unit of pixels per second.