(PECL imagick 2.0.0)
ImagickDraw::roundRectangle — Draws a rounded rectangle
本函数暂无文档，仅有参数列表。
Draws a rounded rectangle given two coordinates, x & y corner radiuses and using the current stroke, stroke width, and fill settings.
x coordinate of the top left corner
y coordinate of the top left corner
x coordinate of the bottom right
y coordinate of the bottom right
x rounding
y rounding
无返回值。