# Imagick::extentImage

(PECL imagick 2, PECL imagick 3)

Imagick::extentImage — Set 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。

警告

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

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