[comp.lang.postscript] Mac previewer for PostScript

cortesi@infmx.UUCP (David Cortesi) (03/14/90)

Recently several postings have asked for information on PostScript(tm)
previewers.  I have recently discovered one, have ordered it but not
yet tried it.  It is "PostShow," a PostScript development environment from
	Lincoln & Company
	29 Domino Drive
	Concord, MA 01742
	508-369-1441  or  800-223-7469

The following is based on a phone conversation with a sales rep
at the company.  The product includes an interactive PS interpreter
so you can type PS statements and see the output on the screen of
your Macintosh.  The preview window can be zoomed and scrolled.  You
can also have windows showing the current graphics state and the 
state of the execution stack, and watch these things change as
statements are executed.  There is a cursor location tool so you
can point in the preview window and see a readout of the x-y location
of any point.  There is a program editor that allows you to include
PS code written by other applications.  The product uses Type 3 fonts
supplied by the company for screen output; these are substituted
for the standard fonts automatically during preview. Character size
and shape is claimed to be indistinguishable from Adobe's
at the 72dpi resolution of the screen.  Of course the real fonts
will be used when you send the code to the printer.

The product does not, repeat not, require an attached printer; it
has its own PS interpreter.  This is good in that you can develop
away from a printer; potentially risky in that you are relying on the
accuracy of their interpretation of the language.

Price is $224.95 with the basic 13 fonts, or $294.95 with the 35 fonts
needed for LW+ compatibility.  They support the Mac SE and up but
recommend 2 megs of RAM if you use multifinder.  I didn't ask about
big screen or color support.

Again, the above is from my notes of a phone conversation with a sales
rep.  If you are interested, you should call the company and ask about
the details that interest you.

///////   /     David Cortesi            /////// cortesi@infmx.uu.net //////
//////   //                              // I ordered this product for    //
////  / ///     Informix Software        // home use; my employer has     // 
///  / ////     4100 Bohannon Drive      // no opinions on any of these   //
//  / /////     Menlo Park, CA  94025    // topics.                       //
/  ////////     (415) 926-6300           //// ...pyramid!infmx!cortesi /////

baumgart@esquire.dpw.com (Steve Baumgarten) (03/17/90)

In article <3588@infmx.UUCP>, cortesi@infmx (David Cortesi) writes:
>Recently several postings have asked for information on PostScript(tm)
>previewers.  I have recently discovered one, have ordered it but not
>yet tried it.  It is "PostShow," a PostScript development environment from
>	Lincoln & Company
>	29 Domino Drive
>	Concord, MA 01742
>	508-369-1441  or  800-223-7469

I've been using it for a while and am generally happy with it.  But
note that you don't get any sort of serious debugging tools -- for
that, you should get LaserTalk.  Of course, you need a LaserWriter to
make use of it, which was a serious disadvantage for me...

Other limitations:  

   o You can only edit one file at a time.  However, you can select
     and execute parts of the file, or execute the whole file.

   o Characters look pretty bad on the screen; it's sure not ATM.

   o It doesn't work with ATM, so even if you have some lovely Adobe
     fonts lying around you can't use them.

   o It's tolerable on a Plus (which is what I have), but not for any
     kind of lengthy debugging.

   o No tools to let you easily or graphicallly manipulate dictionaries.

   o There's no good way to handle multiple page documents.  They give
     you a hokey workaround, but basically you get to see only the
     last page of your document.

   o It's Multifinder tolerant, but that's all.  It won't work in the
     background, and you can't switch out of it when it's thinking
     (although you can abort the interpreter at any point).

On the other hand:

   o You can preview Mac-generated PostScript (from CMD-F); on a Plus
     it takes about 2.5 minutes to display a page.  Considering it
     takes our print spooler at work about 1.5 minutes to shove a job
     at our printer, I'm reasonably happy.  I occasionally go and munge
     the output of Nisus to get background graphics into the
     background (long story), and PostShow is a good way to make sure I
     haven't screwed things up.

   o It runs in 1 meg, though if that's *all* you have you may have to
     dump some INITs.

   o I find it very satisfactory for simple programming and debugging.
     It might be very much less so if I were fooling with low-level
     stuff, or manipulating dictionaries, etc.

So given that it costs just a little over $200 and doesn't require a
printer, I think it's a good deal, especially if you don't generally
write long, complicated PostScript programs.  

Of course, the faster your machine, the better its response.  As it
is, I don't find myself drumming my fingers in frustration all the
time, but on the other hand it certainly isn't an NTX.

If people would like more details, I'd be happy to respond by email.

--
   Steve Baumgarten             | "New York... when civilization falls apart,
   Davis Polk & Wardwell        |  remember, we were way ahead of you."
   baumgart@esquire.dpw.com     | 
   cmcl2!esquire!baumgart       |                           - David Letterman