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From: tgades@stolaf.edu (Anthony M Gades)
Newsgroups: comp.windows.x
Subject: Help re-sizing an image........
Message-ID: <1991Mar11.145837.3495@news.stolaf.edu>
Date: 11 Mar 91 14:58:37 GMT
Sender: news@news.stolaf.edu
Organization: St. Olaf College; Northfield, MN  USA
Lines: 24
Originator: tgades@skadi.physics.stolaf.edu


I have mostly written a display program to analyze our geo-physical
RADAR data using X-windows.  What we have is a long datafile of 
waveforms that are 1024 bytes long.  What I do is take each of the bytes, look
at its relative magnitude, and then give it a color.  Then to display
I have created a window that is large enough so that I can dedicate a
pixel to each of the 1024 bytes.  This works fine and dandy.  Here is the

problem:  I would like to take an arbitrary portion of the 1024 bytes,
	and expand them over the entire window.  That is, I want to be able
	to blow up a region on the screen.  The problem is that if I must 
	exaggerate the image, it must be an orderly thing, as each pixel
	really means something in the real world. 


	thanks in advance for any help......
		tgades


-- 
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  _________                         Tony Gades St. Olaf College,
      /                       /     Northfield, MN  55057 
     /                       /      tel (507)-663-2725