Imagick::extentImage

(PECL imagick 2, PECL imagick 3)

Imagick::extentImageSet image size

说明

public Imagick::extentImage ( int $width , int $height , int $x , int $y ) : bool

Comfortability method for setting image size. The method sets the image size and allows setting x,y coordinates where the new area begins. 此方法在Imagick基于ImageMagick 6.3.1以上版本编译时可用。

Caution

Prior to ImageMagick 6.5.7-8 (1623), $x was positive when shifting to the left and negative when shifting to the right, and $y was positive when shifting an image up and negative when shifting an image down. Somewhere betwen ImageMagick 6.3.7 (1591) and ImageMagick 6.5.7-8 (1623), the axes of $x and $y were flipped, so that $x was negative when shifting to the left and positive when shifting to the right, and $y was negative when shifting an image up and positive when shifting an image down. Somewhere between ImageMagick 6.5.7-8 (1623) and ImageMagick 6.6.9-7 (1641), the axes of $x and $y were flipped back to pre-ImageMagick 6.5.7-8 (1623) functionality.

参数

width

The new width

height

The new height

x

X position for the new size

y

Y position for the new size

返回值

成功时返回 true

参见

User Contributed Notes

orgoj 13-Feb-2014 06:52
Some tiff image are corrupted, if used without prior calling setImageMatte(false).
bas at vdsluis dot net 03-Dec-2009 04:44
This function cannot handle images with a transparent background. Use setImageExtent instead.