Sets the size and offset of the Imagick object

# Imagick::setSizeOffset

(PECL imagick 2, PECL imagick 3)

Imagick::setSizeOffset — Sets the size and offset of the Imagick object

### 说明

public function Imagick::setSizeOffset(int `$columns`, int `$rows`, int `$offset`): bool

Sets the size and offset of the Imagick object. Set it before you read a raw image format such as RGB, GRAY, or CMYK. 此方法在Imagick基于ImageMagick 6.2.9以上版本编译时可用。

### 参数

`columns`

  The width in pixels.

`rows`

  The height in pixels.

`offset`

  The image offset.

### 返回值

成功时返回 `true`。

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