CairoMatrix::scale

cairo_matrix_scale

(PECL cairo >= 0.1.0)

CairoMatrix::scale -- cairo_matrix_scale — Applies scaling to a matrix

説明

オブジェクト指向型 (method):

public CairoMatrix::scale ( float $sx , float $sy ) : void

手続き型:

cairo_matrix_scale ( CairoContext $context , float $sx , float $sy ) : void

Applies scaling by sx, sy to the transformation in the matrix. The effect of the new transformation is to first scale the coordinates by sx and sy, then apply the original transformation to the coordinates.

パラメータ

matrix

Procedural only - CairoMatrix instance

sx

scale factor in the X direction

sy

scale factor in the Y direction

例

例1 オブジェクト指向型

<?php
/* Apply scaling to a matrix */
$matrix = new CairoMatrix(1.0, 0.5, 0.0, 1.0, 0.0, 0.0);
$matrix->scale(0.2, 2.0);
?>

例2 手続き型

<?php
/* Apply scaling to a matrix */
$matrix = cairo_matrix_init(1.0, 0.5, 0.0, 1.0, 0.0, 0.0);
cairo_matrix_scale($matrix, 0.2, 2.0);
?>

参考