Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!husc6!bbn!uwmcsd1!marque!gryphon!richard
From: richard@gryphon.CTS.COM (Richard Sexton)
Newsgroups: comp.sys.amiga.tech
Subject: Re: NAPLPS (was Re: Color QuickDraw)
Message-ID: <4034@gryphon.CTS.COM>
Date: 16 May 88 06:22:59 GMT
References: <9708@apple.Apple.Com> <97800007@silver> <53300@sun.uucp>
Reply-To: richard@gryphon.CTS.COM (Richard Sexton)
Organization: Trailing Edge Technology, Redondo Beach, CA
Lines: 27

In article <53300@sun.uucp> cmcmanis@sun.UUCP (Chuck McManis) writes:
>
>    By convention 8 pixel fonts map 1:1 to the printers built in font which
>generates (usually) 10 characters per inch. So 8.5" of printer map to one
>screen width of 640 pixels. If the printers resolution is 144 dots/inch 
>(like on the epsonX series) then 8.5 inches on the printer is 1224 pixels.
>And the mapping, screen to printer is 1:1.91. Thus if you were using Ruby
>15 on the screen you would need to use ruby 28 on the printer to get the
>same 'size' letters. Unfortunately this is not a very straight forward 
>mapping but NAPLPS can handle it. 

It's even easier in PostScript. And more elegantly, too.

>Now, does anyone know why the 'info' terminals which use NAPLPS to render
>to the screen are so slow?

They use Suns to render the images ?

>--Chuck McManis
>   sun!cmcmanis 

Sorry Chuck, she made me do it :-)


-- 
               And other people run red lights, too.
richard@gryphon.CTS.COM                          rutgers!marque!gryphon!richard