PHP - Manual: ps_circle
2024-11-15
(PECL ps >= 1.1.0)
ps_circle — Draws a circle
$psdoc
,$x
,$y
,$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.
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
成功时返回 true
, 或者在失败时返回 false
。