Many of SVG's graphics operations utilize 2x3 matrices of the form:

[a c e]
[b d f]

which, when expanded into a 3x3 matrix for the purposes of matrix arithmetic, become:

[a c e]
[b d f]
[0 0 1]

An SVGMatrix object can be designated as read only, which means that attempts to modify the object will result in an exception being thrown.

SVGMatrix does not have a public constructor. You can create an SVGMatrix using the createSVGMatrix() method of SVGSVGElement.

SVGMatrix.a

A float representing the a component of the matrix.

SVGMatrix.b

A float representing the b component of the matrix.

SVGMatrix.c

A float representing the c component of the matrix.

SVGMatrix.d

A float representing the d component of the matrix.

SVGMatrix.e

A float representing the e component of the matrix.

SVGMatrix.f

A float representing the f component of the matrix.

SVGMatrix.multiply()

Performs matrix multiplication. This matrix is post-multiplied by another matrix, returning the resulting new matrix as SVGMatrix.

SVGMatrix.inverse()

Returns the inverse matrix as SVGMatrix.

SVGMatrix.translate()

Post-multiplies a translation transformation on the current matrix and returns the resulting matrix as SVGMatrix.

SVGMatrix.scale()

Post-multiplies a uniform scale transformation on the current matrix and returns the resulting matrix as SVGMatrix.

SVGMatrix.scaleNonUniform()

Post-multiplies a non-uniform scale transformation on the current matrix and returns the resulting matrix as SVGMatrix.

SVGMatrix.rotate()

Post-multiplies a rotation transformation on the current matrix and returns the resulting matrix as SVGMatrix.

SVGMatrix.rotateFromVector()

Post-multiplies a rotation transformation on the current matrix and returns the resulting matrix as SVGMatrix. The rotation angle is determined by taking (+/-) atan(y/x). The direction of the vector (x, y) determines whether the positive or negative angle value is used.

SVGMatrix.flipX()

Post-multiplies the transformation [-1 0 0 1 0 0] and returns the resulting matrix as SVGMatrix.

SVGMatrix.flipY()

Post-multiplies the transformation [1 0 0 -1 0 0] and returns the resulting matrix as SVGMatrix.

SVGMatrix.skewX()

Post-multiplies a skewX transformation on the current matrix and returns the resulting matrix as SVGMatrix.

SVGMatrix.skewY()

Post-multiplies a skewY transformation on the current matrix and returns the resulting matrix as SVGMatrix.

A DOMException with the code NO_MODIFICATION_ALLOWED_ERR is raised when attempting updating a read-only attribute or when the object itself is read-only.