ps_circle
(PECL ps >= 1.1.0)
ps_circle — Draws a circle
說明
ps_circle(
resource
float
float
float
): bool
resource
$psdoc,float
$x,float
$y,float
$radius): bool
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.
參數
-
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
成功時返回 true， 或者在失敗時返回 false。