lib/com.irurueta.android.gesturebitmap/MetricTransformationParameters

MetricTransformationParameters

data class MetricTransformationParameters(var scale: Double = 1.0, var rotationAngle: Double = 0.0, var horizontalTranslation: Double = 0.0, var verticalTranslation: Double = 0.0) : Serializable

Contains parameters defining a 2D metric transformation.

Constructors

constructor(scale: Double = 1.0, rotationAngle: Double = 0.0, horizontalTranslation: Double = 0.0, verticalTranslation: Double = 0.0)

Types

Companion

object Companion

Properties

horizontalTranslation

var horizontalTranslation: Double

horizontal translation.

rotationAngle

var rotationAngle: Double

rotation angle expressed in radians.

scale

var scale: Double

amount of scale.

verticalTranslation

var verticalTranslation: Double

vertical translation.

Functions

fromMatrix

fun fromMatrix(matrix: Matrix, assumePositiveScale: Boolean = true)

Converts provided matrix into metric transformation parameters. Notice that matrix form contains an ambiguity respect scale and rotation, since a negative scale also implies a rotation of 180 degrees.

toMatrix

fun toMatrix(): Matrix

Converts provided metric transformation parameters into a matrix and returns the result as a new instance.

fun toMatrix(result: Matrix)

Converts provided metric transformation parameters into a matrix.