ps_circle
(PECL ps:1.1.0-1.3.5)
ps_circle — Draws a circle
说明
bool ps_circle
( resource $psdoc
, float $x
, float $y
, float $radius
)
Draws a circle with its middle point at (x , y ). The circle starts and ends at position (x +radius , y ). If this function is called outside a path it will start a new path. If it is called within a path it will add the circle as a subpath. If the last drawing operation does not end in point (x +radius , y ) then there will be a gap in the path.
参数
- psdoc
-
Resource identifier of the postscript file as returned by ps_new().
- x
-
The x-coordinate of the circle's middle point.
- y
-
The y-coordinate of the circle's middle point.
- radius
-
The radius of the circle
返回值
如果成功则返回 TRUE，失败则返回 FALSE。
