Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!philmtl!philabs!ppgbms!pablo
From: pablo@ppgbms (Pablo Gonzalez)
Newsgroups: comp.windows.news
Subject: Re: what the hell happened to writecanvas in NeWS 2.0!!!
Message-ID: <30008@ppgbms.UUCP>
Date: 12 Apr 90 14:38:52 GMT
References: <29898@ppgbms.UUCP> <134314@sun.Eng.Sun.COM>
Organization: PPG Biomedical Sys., Pleasantville, NY.
Lines: 30

In article <134314@sun.Eng.Sun.COM>, naughton@wind.eng.sun.com (Patrick Naughton) writes:
> 
> Both NeWS 1.1 and NeWS 2.0 (OpenWindows) write compressed images,
> actually run-length byte encoded images.  The size difference you are
> seeing is due to the inclusion of the colormap in the NeWS 1.1 image
> even though it is one bit deep.  NeWS 2.0 leaves the colormap out of
> 1 bit deep images thus all mono images 2.0 writes will be 768 bytes
> smaller than the 1.1 equivalents.
> 

I would like to first thank you for replying to our article.

We agree with your point regarding the colormap omission in NeWS 2.0.
However, the NeWS 1.1 that we are running does not write the image data in
compressed format. We have  verified this by checking the rasterfile type.
NeWS 1.1 rasterfile type is equal to 1 while NeWS 2.0 type is equal to 2.

P.S. I would like to apologize for the nasty wording in the subject line. It
        was just one of those days.


        Thanks again,
        Pablo

============================================================================
 Pablo Gonzalez              |                                             
 One Campus Drive            |	path ppgbms!moe!pablo@philabs.philips.com  
 Pleasantville, N.Y.  10570  |                                             
 (914) 741-4626              |                                             
============================================================================