(PECL ps >= 1.1.0)
ps_setflat — Sets flatness
$psdoc, float $value): bool
本函數還未編寫(xiě)文檔，僅有參數列表。
psdocResource identifier of the postscript file as returned by ps_new().
value
The value must be between 0.2 and 1.
成功時(shí)返回 true， 或者在失敗時(shí)返回 false。