PHP Manual
Gmagick
Creating a parallelogram

Gmagick::shearimage

(PECL gmagick >= Unknown)

Gmagick::shearimage — Creating a parallelogram

说明

public Gmagick::shearimage ( mixed $color , float $xShear , float $yShear ) : Gmagick

Slides one edge of an image along the X or Y axis, creating a parallelogram. An X direction shear slides an edge along the X axis, while a Y direction shear slides an edge along the Y axis. The amount of the shear is controlled by a shear angle. For X direction shears, x_shear is measured relative to the Y axis, and similarly, for Y direction shears y_shear is measured relative to the X axis. Empty triangles left over from shearing the image are filled with the background color.

参数

color: The background pixel wand.
xShear: The number of degrees to shear the image.
yShear: The number of degrees to shear the image.

返回值

The Gmagick object on success

错误／异常

错误时抛出 GmagickException。

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