(PECL imagick 2, PECL imagick 3)
ImagickDraw::getGravity — Returns the text placement gravity
本函數還未編寫(xiě)文檔，僅有參數列表。
Returns the text placement gravity used when annotating with text.
Returns a GRAVITY constant
(imagick::GRAVITY_*) on success and 0 if no gravity is set.