ps_arcn
(PECL ps >= 1.1.0)
ps_arcn — Draws an arc clockwise
說明
ps_arcn(
resource
float
float
float
float
float
): bool
resource
$psdoc,float
$x,float
$y,float
$radius,float
$alpha,float
$beta): bool
Draws a portion of a circle with at middle point at
(x, y). The arc starts at an
angle of alpha and ends at an angle of beta. It is drawn clockwise (use ps_arc() to draw counterclockwise). The subpath added to
the current path starts on the arc at angle beta and
ends on the arc at angle alpha.
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
-
alpha The starting angle given in degrees.
-
beta The end angle given in degrees.
返回值
成功時返回 true， 或者在失敗時返回 false。
參見
- ps_arc() - Draws an arc counterclockwise