imageaffinematrixconcat

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

imageaffinematrixconcat — Concatenate two affine transformation matrices

说明

imageaffinematrixconcat(array $matrix1, array $matrix2): array|false

Returns the concatenation of two affine transformation matrices, what is useful if multiple transformations should be applied to the same image in one go.

参数

matrix1: An affine transformation matrix (an array with keys 0 to 5 and float values).
matrix2: An affine transformation matrix (an array with keys 0 to 5 and float values).

返回值

An affine transformation matrix (an array with keys 0 to 5 and float values) 或者在失败时返回 false.

示例

示例 #1 imageaffinematrixconcat() example

<?php
$m1 = imageaffinematrixget(IMG_AFFINE_TRANSLATE, array('x' => 2, 'y' => 3));
$m2 = imageaffinematrixget(IMG_AFFINE_SCALE, array('x' => 4, 'y' => 5));
$matrix = imageaffinematrixconcat($m1, $m2);
print_r($matrix);
?>

以上示例会输出：

Array
(
    [0] => 4
    [1] => 0
    [2] => 0
    [3] => 5
    [4] => 8
    [5] => 15
)

参见

imageaffine() - 返回经过仿射变换后的图像，剪切区域可选
imageaffinematrixget() - Get an affine transformation matrix

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备份地址：http://www.lvesu.com/blog/php/function.imageaffinematrixconcat.php