Imagick::roundCorners()

(PECL imagick 2.0.0)

Rounds image corners

说明

Imagick::roundCorners(float $x_rounding,float $y_rounding[,float $stroke_width= 10[,float $displace= 5[,float $size_correction= -6]]]): bool

Rounds image corners. The first two parameters control the amount of rounding and the three last parameters can be used to fine-tune the rounding process.此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。

参数

$x_rounding: x rounding
$y_rounding: y rounding
$stroke_width: stroke width
$displace: image displace
$size_correction: size correction

范例

Example #1 Using Imagick::roundCorners():

Rounds the image corners

<?php
$image = new Imagick();
$image->newPseudoImage(100, 100, "magick:rose");
$image->setImageFormat("png");
$image->roundCorners(5,3);
$image->writeImage("rounded.png");
?>

返回值

成功时返回TRUE。

Is this method deprecated? 
what can we do instead ?

Alternative solution:
// example values
$width = 250;
$height = 250;
$cornerRadius = 10;
// create mask image
$mask = new Imagick();
$mask->newImage($width, $height, new ImagickPixel('transparent'), 'png');
// create the rounded rectangle
$shape = new ImagickDraw();
$shape->setFillColor(new ImagickPixel('black'));
$shape->roundRectangle(0, 0, $width, $height, $cornerRadius, $cornerRadius);
// draw the rectangle
$mask->drawImage($shape);
// apply mask
$image->compositeImage($mask, Imagick::COMPOSITE_DSTIN, 0, 0);
I found solution here:
https://github.com/Imagick/imagick/issues/213#issuecomment-385928740