- PHP 手册
- 函数参考
- 图像生成和处理
- ImageMagick
- Imagick
Imagick::setImageUnits
(PECL imagick 2, PECL imagick 3)
Imagick::setImageUnits — Sets the image units of resolution
说明
public Imagick::setImageUnits(int$units): bool
Sets the image units of resolution.
参数
-
units -
返回值
成功时返回 true。
User Contributed Notes 2 notes
up down 3 euperia at gmail dot com ¶9 years ago
You should use the PHP Imagick constants to correctly set the Image Units, as described here:
http://www.php.net/manual/en/imagick.constants.php
RESOLUTION constants
imagick::RESOLUTION_UNDEFINED (integer)
imagick::RESOLUTION_PIXELSPERINCH (integer)
imagick::RESOLUTION_PIXELSPERCENTIMETER (integer)
up
down
0
salomonsanz at gmail dot com ¶13 years ago
$source = 'miphoto.jpg';
$imagick = new Imagick($source);
$imagick -> setImageUnits(2);
//0=undefined, 1=pixelsperInch, 2=PixelsPerCentimeter
$info = $imagick -> identifyImage();
print_r($info);
//ouput
/*
Array
(
[units] => PixelsPerCentimeter
)
add a note
官方地址：https://www.php.net/manual/en/imagick.setimageunits.php