Swirls the pixels about the center of the image

# Gmagick::swirlimage

(PECL gmagick >= Unknown)

Gmagick::swirlimage — Swirls the pixels about the center of the image

### 说明

public function Gmagick::swirlimage(float `$degrees`): Gmagick

Swirls the pixels about the center of the image, where degrees indicates the sweep of the arc through which each pixel is moved. You get a more dramatic effect as the degrees move from 1 to 360.

### 参数

`degrees`
  Define the tightness of the swirling effect.

### 返回值

The Gmagick object.

### 错误／异常

错误时抛出 GmagickException。

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