iOS Layer动画的KeyPath

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Field Key Path

Description

rotation.x

Set to an NSNumber object whose value is the rotation, in radians, in the x axis.

rotation.y

Set to an NSNumber object whose value is the rotation, in radians, in the y axis.

rotation.z

Set to an NSNumber object whose value is the rotation, in radians, in the z axis.

rotation

Set to an NSNumber object whose value is the rotation, in radians, in the z axis. This field is identical to setting therotation.z field.

scale.x

Set to an NSNumber object whose value is the scale factor for the x axis.

scale.y

Set to an NSNumber object whose value is the scale factor for the y axis.

scale.z

Set to an NSNumber object whose value is the scale factor for the z axis.

scale

Set to an NSNumber object whose value is the average of all three scale factors.

translation.x

Set to an NSNumber object whose value is the translation factor along the x axis.

translation.y

Set to an NSNumber object whose value is the translation factor along the y axis.

translation.z

Set to an NSNumber object whose value is the translation factor along the z axis.

translation

Set to an NSValue object containing an NSSize or CGSize data type. That data type indicates the amount to translate in the x and y axis.