CairoMatrix::__construct

cairo_matrix_init

(PECL cairo >= 0.1.0)

CairoMatrix::__construct -- cairo_matrix_init — Creates a new CairoMatrix object

说明

面向对象风格 (method):

public CairoMatrix::__construct ([ float $xx = 1.0 [, float $yx = 0.0 [, float $xy = 0.0 [, float $yy = 1.0 [, float $x0 = 0.0 [, float $y0 = 0.0 ]]]]]] )

过程化风格:

cairo_matrix_init ([ float $xx = 1.0 [, float $yx = 0.0 [, float $xy = 0.0 [, float $yy = 1.0 [, float $x0 = 0.0 [, float $y0 = 0.0 ]]]]]] ) : object

Returns new CairoMatrix object. Matrices are used throughout cairo to convert between different coordinate spaces. Sets matrix to be the affine transformation given by xx, yx, xy, yy, x0, y0. The transformation is given by: x_new = xx * x + xy * y + x0; and y_new = yx * x + yy * y + y0;

参数

xx

xx component of the affine transformation

yx

yx component of the affine transformation

xy

xy component of the affine transformation

yy

yy component of the affine transformation

x0

X translation component of the affine transformation

y0

Y translation component of the affine transformation

返回值

Returns a new CairoMatrix object that can be used with surfaces, contexts, and patterns.

范例

Example #1 面向对象风格

<?php
/* Create a new Matrix */
$matrix = new CairoMatrix(1.0, 0.5, 0.0, 1.0, 0.0, 0.0);
?>

Example #2 过程化风格

<?php
/* Create a new Matrix */
$matrix = cairo_matrix_init(1.0, 0.5, 0.0, 1.0, 0.0, 0.0);
?>

参见

相关文章
php cairofontface creates a new cairofontface objectphp cairomatrix creates a new cairomatrix objectphp dateperiod creates a new dateperiod objectphp domcomment creates a new domcomment objectphp domdocument creates a new domdocument objectphp domelement creates a new domelement objectphp domentityreference creates a new domentityreference objectphp domimplementation creates a new domimplementation objectphp domprocessinginstruction creates a new domprocessinginstruction objectphp domtext creates a new domtext objectphp domxpath creates a new domxpath objectphp ffi creates a new ffi objectphp quickhashinthash creates a new quickhashinthash objectphp quickhashintset creates a new quickhashintset objectphp quickhashintstringhash creates a new quickhashintstringhash objectphp quickhashstringinthash creates a new quickhashstringinthash objectphp sam 函数 creates a new message objectphp simplexmlelement creates a new simplexmlelement objectphp swfmorph creates a new swfmorph objectphp xsltprocessor creates a new xsltprocessor object
关注编程学问公众号