Imagick::extentImage()

(No version information available, might only be in Git)

Set image size

说明

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。

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

• Imagick::resizeImage() Scales an image
• Imagick::thumbnailImage() Changes the size of an image
• Imagick::cropImage() 截图图片的一块区域

This function cannot handle images with a transparent background. Use setImageExtent instead.

Some tiff image are corrupted, if used without prior calling setImageMatte(false).