imageaffinematrixconcat()

(PHP 5 >= 5.5.0, PHP 7)

Concatenate two affine transformation matrices

说明

imageaffinematrixconcat(array $m1,array $m2): array

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

$m1

An affine transformation matrix(an array with keys0to5and float values).

$m2

An affine transformation matrix(an array with keys0to5and float values).

返回值

An affine transformation matrix(an array with keys0to5and float values)或者在失败时返回FALSE.

范例

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);
?>

以上例程会输出：

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