ps_clip

(PECL ps >= 1.1.0)

ps_clip — Clips drawing to current path

bool ps_clip ( resource $psdoc )

Takes the current path and uses it to define the border of a clipping area. Everything drawn outside of that area will not be visible.

psdoc: Resource identifier of the postscript file as returned by ps_new().

成功时返回 TRUE，或者在失败时返回 FALSE.