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Imagick::setImageOpacity

(PECL imagick 2, PECL imagick 3)

Imagick::setImageOpacitySets the image opacity level

Avertizare

Această funcție este ÎNVECHITĂ începând cu Imagick 3.4.4. Utilizarea acesteia este foarte nerecomandată.

Descrierea

public Imagick::setImageOpacity ( float $opacity ) : bool

Sets the image to the specified opacity level. Această metodă este disponibilă dacă Imagick a fost compilat cu ImageMagick de versiunea 6.3.1 sau ulterior. This method operates on all channels, which means that for example opacity value of 0.5 will set all transparent areas to partially opaque. To add transparency to areas that are not already transparent use Imagick::evaluateImage()

Parametri

opacity

The level of transparency: 1.0 is fully opaque and 0.0 is fully transparent.

Valorile întoarse

Întoarce true în caz de succes.

Exemple

Example #1 A Imagick::setImageOpacity() example

An example of using Imagick::setImageOpacity()

<?php
/* Create the object */
$image = new Imagick('source.png');

/* Set the opacity */
$image->setImageOpacity(0.7);

/* output the image */
header('Content-type: image/png');
echo 
$image;

?>

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User Contributed Notes 1 note

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hola at rafaeltovar dot info
2 years ago
This function is deprecated from last stable version (3.4.4 - 2019-05-02) of PECL Imagick extension.

More info: http://pecl.php.net/package-changelog.php?package=imagick&release=3.4.4

"setImageAlpha" is the new alternative function, but doesn't work with ImageMagick < 7.

More info: https://github.com/avalanche123/Imagine/issues/715
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