Matrix

Module hilo/geom/Matrix Requires hilo/core/Class Source Matrix.js
Matrix class is a transforming matrix, which declare how points in one coordinate maped to another coordinate.

Methods

	Method	Defined
	Matrix(a:Number, b:Number, c:Number, d:Number, tx:Number, ty:Number) Constructor	Matrix
	clone():Matrix clone	Matrix
	concat(mtx:Matrix):Matrix Link a Matrix to current Matrix, in order to make geometry effects on these two composed more effective.	Matrix
	copy(mat:Matrix):Matrix copy	Matrix
	identity():Matrix Set each Matrix property a value to trigger null transform.	Matrix
	invert():Matrix Apply an invert transformation of original Matrix.	Matrix
	rotate(angle:Number):Matrix Rotate the Matrix Object.	Matrix
	scale(sx:Number, sy:Number):Matrix Scale the Matrix.	Matrix
	set(a:Number, b:Number, c:Number, d:Number, tx:Number, ty:Number) set	Matrix
	transformPoint(point:Object, round:Boolean, returnNew:Boolean):Object Return the result after apply a Matrix displaying transform on the point.	Matrix
	translate(dx:Number, dy:Number):Matrix Translate the Matrix alongside x axis and y axis by dx and dy.	Matrix

Constructor

Matrix(a:Number, b:Number, c:Number, d:Number, tx:Number, ty:Number)

parameters
a:Number — The value affects pixel positioning alongside the x axis when Scale or rotate images.
b:Number — The value affects pixel positioning alongside the y axis when rotate or skew images.
c:Number — The value affects pixel positioning alongside the x axis when rotate or skew images.
d:Number — The value affects pixel positioning alongside the y axis when Scale or rotate images.
tx:Number — The distance to move every point alongside the x axis.
ty:Number — The distance to move every point alongside the y axis.

Method Detail

clone():Matrix

clone

return: Matrix —

concat(mtx:Matrix):Matrix

Link a Matrix to current Matrix, in order to make geometry effects on these two composed more effective.

parameters
mtx:Matrix — Matrix that link to the source matrix.

return: Matrix — A Matrix Object.

copy(mat:Matrix):Matrix

copy

parameters
mat:Matrix —

return: Matrix — this

identity():Matrix

Set each Matrix property a value to trigger null transform. The Matrix after applying identity matrix transformation will be exactly the same as original.

return: Matrix — A Matrix object.

invert():Matrix

Apply an invert transformation of original Matrix. Using this invert transformation, you can reset a Matrix to a state before it had been apply some Matrix.

return: Matrix — A Matrix object.

rotate(angle:Number):Matrix

Rotate the Matrix Object.

parameters
angle:Number — The angle to rotate.

return: Matrix — A Matrix object.

scale(sx:Number, sy:Number):Matrix

Scale the Matrix.

parameters
sx:Number — The value to multiply those object scale alongside the x axis.
sy:Number — The value to multiply those object scale alongside the y axis.

return: Matrix — A Matrix object.

set(a:Number, b:Number, c:Number, d:Number, tx:Number, ty:Number)

set

parameters
a:Number —
b:Number —
c:Number —
d:Number —
tx:Number —
ty:Number —

transformPoint(point:Object, round:Boolean, returnNew:Boolean):Object

Return the result after apply a Matrix displaying transform on the point.

parameters
point:Object — Point need to transform.
round:Boolean — Whether ceil the coordinate values of the point.
returnNew:Boolean — Whether return a new point.

return: Object — 由应用矩阵转换所产生的点。

translate(dx:Number, dy:Number):Matrix

Translate the Matrix alongside x axis and y axis by dx and dy.

parameters
dx:Number — Translate Matrix alongside the x axis to the right (measured in px).
dy:Number — Translate Matrix alongside the y axis to the right (measured in px).

return: Matrix — A Matrix object.