(PECL haru >= 0.0.1)
HaruPage::circle — Append a circle to the current path
$x
, float $y
, float $ray
)Appends a circle to the current path.
x
Horizontal coordinate of the center point.
y
Vertical coordinate of the center point.
ray
The ray of the circle.
Returns TRUE on success.
发生错误时抛出 HaruException 异常。