ps_arc

(PECL)

ps_arc -- Draws an arc counterclockwise

说明

bool ps_arc ( resource psdoc, float x, float y, float radius, float alpha, float beta )

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 counterclockwise. The subpath added to the current path starts on the arc at angle alpha and ends on the arc at angle beta.

返回值

如果成功则返回 TRUE，失败则返回 FALSE。

参见

ps_arcn()

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