MutableAffine class

An mutable version of an Affine matrix.

Inheritance

• Object
• Affine
• MutableAffine

Constructors

MutableAffine.cssTransform(List<double> css)

Create an affine matrix representing a transformation matrix as described in CSS's format, which consists of six float values. See the matrix transform in s. 7.6.1 of https://www.w3.org/TR/SVGTiny12/coords.html#TransformAttribute .

MutableAffine.identity()

Create a matrix representing the identity transform.

MutableAffine.rotation(double a)

Create a matrix representing a rotation transform, for the angle a in radians.

MutableAffine.scale(double sx, double sy)

Create a matrix representing a scaling transform.

MutableAffine.skewX(double a)

Create a matrix representing x skew transformation.

MutableAffine.skewY(double a)

Create a matrix representing y skew transformation.

MutableAffine.translation(double tx, double ty)

Create a matrix representing a translation.

Properties

forCanvas → Float64List

Give the 4x4 column-major matrix that Canvas wants

no setter, inherited

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

toKey → Affine

Give an immutable key that can be used to find equivalent transformation matrices using ==.

no setter, override

toMutable → MutableAffine

Return this instance.

no setter, override

Methods

copyIntoCompact(List<double> storage, [int offset = 0]) → void

Copy this affine into the compact format, as described in Affine.fromCompact.

override

determinant() → double

Give the determinent of this matrix.

get(int row, int col) → double

Get the element at row, col

inherited

invert() → void

Find the inverse of this matrix. Caller should ensure determinant isn't too close to zero.

isIdentity() → bool

Return true if this is the identity matrix

multiplyBy(MutableAffine other) → void

Mutliply this matrix by other, storing the result in this matrix.

mutableCopy() → MutableAffine

Make a copy of this affine matrix.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

set(int row, int col, double v) → void

Set the given matrix element

toString() → String

A string representation of this object.

inherited

transformed(Point<double> p) → Point<double>

Return a point transformed by this matrix.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited