Path: utzoo!mnetor!uunet!husc6!think!ames!ucsd!sdcsvax!ucsdhub!hp-sdd!hplabs!hpda!hpcuhb!hpcllla!hpcllld!hcmutt
From: hcmutt@hpcllld.HP.COM (Harry Muttart)
Newsgroups: comp.sys.amiga
Subject: Re: printing uniform pixels???
Message-ID: <6790003@hpcllld.HP.COM>
Date: 12 Mar 88 02:37:49 GMT
References: <2752@csli.STANFORD.EDU>
Organization: HP ITG/ISD Computer Language Lab
Lines: 43

* Anybody can suggest something?
* 
* I am aware that this non-uniform printing of pixels are used to make the
* printed picture have the same proportions, but I am willing to give that
* up.

There are a couple of approaches to dealing with this in DPII.  One way is 
to fiddle with settings in the requestor that lets you adjust how much of your
picture should fill the page that you print to.  When you choose the proper 
values, you will get one pixel on the screen to on pixed on the printed page.
Even 1:2 ratio is OK if it is completely consistent and you have a fine print
dot.  The other way to approach this is to ask DPII to set up a larger bitmap
to paint into; on my printer (Panasonic KX-1090) this lets me get a 1:1 dot
ratio between the screen and printer again.  Note that this approach may take
too much memory if you want color and are using 512K.  You might want to use 
a test pattern to calibrate, like:

       *   *   *   *   *   *   *   *   *   *   *   *
       *   *   *   *   *   *   *   *   *   *   *   *
       *   *   *   *   *   *   *   *   *   *   *   *
       *   *   *   *   *   *   *   *   *   *   *   *
       *   *   *   *   *   *   *   *   *   *   *   *
       *   *   *   *   *   *   *   *   *   *   *   *
       *   *   *   *   *   *   *   *   *   *   *   *
       *   *   *   *   *   *   *   *   *   *   *   *

or 

       *   *   *   *   *   *   *   *   *   *   *   *
       
       *   *   *   *   *   *   *   *   *   *   *   *

       *   *   *   *   *   *   *   *   *   *   *   *

       *   *   *   *   *   *   *   *   *   *   *   *

       *   *   *   *   *   *   *   *   *   *   *   *

I agree with you that it would be nice to not have to fiddle around, but once
you figure out the correct ratios for you printer, you are in business until
you upgrade it.

Harry Muttart