Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!sun-barr!decwrl!adobe!greid
From: greid@adobe.com (Glenn Reid)
Newsgroups: comp.lang.postscript
Subject: Re: box function
Message-ID: <953@adobe.UUCP>
Date: 30 Jun 89 16:52:40 GMT
References: <11455@orstcs.CS.ORST.EDU>
Sender: news@adobe.COM
Reply-To: greid@adobe.COM (Glenn Reid)
Organization: Adobe Systems Incorporated, Mountain View
Lines: 31

In article <11455@orstcs.CS.ORST.EDU> jasmerb@mist.CS.ORST.EDU (Bryce Jasmer) writes:
>I'm curious as to why there is no box operator in postscript. (note: I only
>know about Adobe PS version 1.0 so if a later version has a box operator than
>you are permitted to flame me.)

>% box
>% call like this:  x y width height box
>% 			bottom - STACK - top
>/box {				x y w h
>  4 2 roll			w h x y
>  moveto			w h
>  dup 				w h h
>  0 exch rlineto		w h
>  exch				h w
>  0 rlineto			h
>  neg 0 exch rlineto		-
>  closepath
>} def

You have written a very nice procedure.  (You should probably use "bind
def" rather than just "def", to make it a little faster; also, I assume
you just forgot the '%' before the stack trace on the right of each
line....).

Also, new operators have been added to the PostScript language to
handle rectangles, but at present they are only available in Display
PostScript interpreters.  They are "rectfill" and "rectstroke", and
they use arguments in the same fashion that your "box" procedure does.

Glenn Reid
Adobe Systems