SVGMatrix

已废弃: 该特性已经从 Web 标准中删除，虽然一些浏览器目前仍然支持它，但也许会在未来的某个时间停止支持，请尽量不要使用该特性。

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.

Warning: SVG 2 replaced the SVGMatrix interface by the more general DOMMatrix and DOMMatrixReadOnly (en-US) interfaces.

Properties

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.

Methods

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.

Exceptions

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.

Specifications

Specification	Status	Comment
Scalable Vector Graphics (SVG) 1.1 (Second Edition) SVGMatrix	Recommendation	Initial definition

Browser compatibility

BCD tables only load in the browser