= 1.1.0)ps_circle — Draws a circle說(shuō)明ps_circle( resource $psdoc, float $x, float $y, float $radius): boolDraws a circle ">

ps_circle

(PECL ps >= 1.1.0)

ps_circle — Draws a circle

說(shuō)明

ps_circle(
    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(shù)

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(shí)返回 true， 或者在失敗時(shí)返回 false。

參見(jiàn)