Kotlin Computational Geometry/io.github.cponfick.kompgeom.euclidean.twod/AffineTransformationMatrix2

AffineTransformationMatrix2

data class AffineTransformationMatrix2(val m00: Double, val m01: Double, val m02: Double, val m10: Double, val m11: Double, val m12: Double) : Transformer<Vec2> (source)

Represents a 2D affine transformation matrix.

Constructors

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constructor(m00: Double, m01: Double, m02: Double, m10: Double, m11: Double, m12: Double)

Types

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object Companion

Properties

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val m00: Double

The element at row 0, column 0.

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val m01: Double

The element at row 0, column 1.

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val m02: Double

The element at row 0, column 2.

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val m10: Double

The element at row 1, column 0.

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val m11: Double

The element at row 1, column 1.

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val m12: Double

The element at row 1, column 2.

Functions

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open override fun apply(obj: Vec2): Vec2

Applies the transformation to a point.

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fun determinant(): Double

Computes the determinant of the affine transformation matrix.

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fun eq(other: AffineTransformationMatrix2, equivalence: DoubleEquivalence = DEFAULT_DOUBLE_EQUIVALENCE): Boolean

Tests if two affine transformation matrices are approximately equal.

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open override fun inverse(): AffineTransformationMatrix2

Get the inverse of this transformation.

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open override fun preserveOrientation(): Boolean

Checks if the transformation preserves the orientation of points. For example: In 3D space, a translation preserves orientation, while a reflection does not.

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fun rotate(angle: Double, angleUnit: AngleUnit = AngleUnit.RADIANS): AffineTransformationMatrix2

Rotates the transformation matrix by a specified angle. The angle can be specified in either radians or degrees.

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fun scale(vector: Vec2): AffineTransformationMatrix2

Scales the transformation matrix by a given vector. The x and y components of the vector represent the scaling factors in the respective directions.

fun scale(factor: Double): AffineTransformationMatrix2

Scales the transformation matrix by a given factor in both x and y directions.

fun scale(x: Double, y: Double): AffineTransformationMatrix2

Scales the transformation matrix by given factors in the x and y directions.

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fun shear(shearX: Double, shearY: Double): AffineTransformationMatrix2

Shears the transformation matrix by specified factors in the x and y directions.

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operator fun times(other: AffineTransformationMatrix2): AffineTransformationMatrix2

Multiplies two affine transformation matrices.

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fun toArray(): DoubleArray

Get the array representation of the transformation matrix.

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fun translate(translation: Vec2): AffineTransformationMatrix2

Translates the transformation matrix by a given vector. The x and y components of the vector represent the translation in the respective directions.

fun translate(tx: Double, ty: Double): AffineTransformationMatrix2

Translates the transformation matrix by a given distance in the x and y directions.