# Matrix2f Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) Deprecated in[API level 31](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) # Matrix2f *** ** * ** *** Kotlin\|[Java](https://developer.android.com/reference/android/renderscript/Matrix2f "View this page in Java") ``` open class Matrix2f ``` |---|----------------------------------------------------------------------------------------------------------------| | [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) || | ↳ | [android.renderscript.Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#) | *** ** * ** *** | **This class was deprecated in API level 31.** | | Renderscript has been deprecated in API level 31. Please refer to the[migration guide](https://developer.android.com/guide/topics/renderscript/migration-guide)for the proposed alternatives. Class for exposing the native RenderScript rs_matrix2x2 type back to the Android system. ## Summary | Public constructors || |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---| | [Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#Matrix2f())`()` Creates a new identity 2x2 matrix | | [Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#Matrix2f(kotlin.FloatArray))`(`dataArray:` `[FloatArray](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float-array/index.html)!`)` Creates a new matrix and sets its values from the given parameter | | Public methods || |------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | open[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html) | [get](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#get(kotlin.Int,%20kotlin.Int))`(`x:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `y:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Returns the value for a given row and column | | open[FloatArray](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float-array/index.html)! | [getArray](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#getArray())`()` Return a reference to the internal array representing matrix values. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [load](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#load(android.renderscript.Matrix2f))`(`src:` `[Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#)!`)` Sets the values of the matrix to those of the parameter | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [loadIdentity](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#loadIdentity())`()` Sets the matrix values to identity | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [loadMultiply](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#loadMultiply(android.renderscript.Matrix2f,%20android.renderscript.Matrix2f))`(`lhs:` `[Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#)!`, `rhs:` `[Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#)!`)` Sets current values to be the result of multiplying two given matrices | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [loadRotate](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#loadRotate(kotlin.Float))`(`rot:` `[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html)`)` Sets current values to be a rotation matrix of given angle | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [loadScale](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#loadScale(kotlin.Float,%20kotlin.Float))`(`x:` `[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html)`, `y:` `[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html)`)` Sets current values to be a scale matrix of given dimensions | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [multiply](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#multiply(android.renderscript.Matrix2f))`(`rhs:` `[Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#)!`)` Post-multiplies the current matrix by a given parameter | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [rotate](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#rotate(kotlin.Float))`(`rot:` `[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html)`)` Modifies the current matrix by post-multiplying it with a rotation matrix of given angle | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [scale](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#scale(kotlin.Float,%20kotlin.Float))`(`x:` `[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html)`, `y:` `[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html)`)` Modifies the current matrix by post-multiplying it with a scale matrix of given dimensions | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [set](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#set(kotlin.Int,%20kotlin.Int,%20kotlin.Float))`(`x:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `y:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `v:` `[Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html)`)` Sets the value for a given row and column | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [transpose](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#transpose())`()` Sets the current matrix to its transpose | ## Public constructors ### Matrix2f Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` Matrix2f() ``` Creates a new identity 2x2 matrix ### Matrix2f Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` Matrix2f(dataArray: FloatArray!) ``` Creates a new matrix and sets its values from the given parameter | Parameters || |-------------|-----------------------------------------------------------------------------------------------------------------------------------------------| | `dataArray` | [FloatArray](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float-array/index.html)!:values to set the matrix to, must be 4 floats long | ## Public methods ### get Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun get(     x: Int,     y: Int ): Float ``` **Deprecated:** *Deprecated in Java.* Returns the value for a given row and column | Parameters || |-----|----------------------------------------------------------------------------------------------------------| | `x` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):column of the value to return | | `y` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):row of the value to return | | Return || |--------------------------------------------------------------------------------|-------------------------------------| | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html) | value in the yth row and xth column | ### getArray Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun getArray(): FloatArray! ``` **Deprecated:** *Deprecated in Java.* Return a reference to the internal array representing matrix values. Modifying this array will also change the matrix | Return || |--------------------------------------------------------------------------------------------|----------------------------------------| | [FloatArray](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float-array/index.html)! | internal array representing the matrix | ### load Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun load(src: Matrix2f!): Unit ``` **Deprecated:** *Deprecated in Java.* Sets the values of the matrix to those of the parameter | Parameters || |-------|---------------------------------------------------------------------------------------------------------------------------| | `src` | [Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#)!:matrix to load the values from | ### loadIdentity Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun loadIdentity(): Unit ``` **Deprecated:** *Deprecated in Java.* Sets the matrix values to identity ### loadMultiply Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun loadMultiply(     lhs: Matrix2f!,     rhs: Matrix2f! ): Unit ``` **Deprecated:** *Deprecated in Java.* Sets current values to be the result of multiplying two given matrices | Parameters || |-------|-------------------------------------------------------------------------------------------------------------------| | `lhs` | [Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#)!:left hand side matrix | | `rhs` | [Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#)!:right hand side matrix | ### loadRotate Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun loadRotate(rot: Float): Unit ``` **Deprecated:** *Deprecated in Java.* Sets current values to be a rotation matrix of given angle | Parameters || |-------|-----------------------------------------------------------------------------------------------| | `rot` | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html):rotation angle | ### loadScale Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun loadScale(     x: Float,     y: Float ): Unit ``` **Deprecated:** *Deprecated in Java.* Sets current values to be a scale matrix of given dimensions | Parameters || |-----|--------------------------------------------------------------------------------------------------| | `x` | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html):scale component x | | `y` | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html):scale component y | ### multiply Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun multiply(rhs: Matrix2f!): Unit ``` **Deprecated:** *Deprecated in Java.* Post-multiplies the current matrix by a given parameter | Parameters || |-------|---------------------------------------------------------------------------------------------------------------------------| | `rhs` | [Matrix2f](https://developer.android.com/reference/kotlin/android/renderscript/Matrix2f#)!:right hand side to multiply by | ### rotate Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun rotate(rot: Float): Unit ``` **Deprecated:** *Deprecated in Java.* Modifies the current matrix by post-multiplying it with a rotation matrix of given angle | Parameters || |-------|--------------------------------------------------------------------------------------------------| | `rot` | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html):angle of rotation | ### scale Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun scale(     x: Float,     y: Float ): Unit ``` **Deprecated:** *Deprecated in Java.* Modifies the current matrix by post-multiplying it with a scale matrix of given dimensions | Parameters || |-----|--------------------------------------------------------------------------------------------------| | `x` | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html):scale component x | | `y` | [Float](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-float/index.html):scale component y | ### set Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun set(     x: Int,     y: Int,     v: Float ): Unit ``` **Deprecated:** *Deprecated in Java.* Sets the value for a given row and column | Parameters || |-----|-------------------------------------------------------------------------------------------------------| | `x` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):column of the value to set | | `y` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):row of the value to set | ### transpose Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun transpose(): Unit ``` **Deprecated:** *Deprecated in Java.* Sets the current matrix to its transpose