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From: pds@entropy.UUCP (Paul Sampson)
Newsgroups: net.micro.mac
Subject: Help wanted: digitizing point coordinates (w/ MacTablet)
Message-ID: <335@entropy.UUCP>
Date: Mon, 28-Jul-86 00:53:31 EDT
Article-I.D.: entropy.335
Posted: Mon Jul 28 00:53:31 1986
Date-Received: Mon, 28-Jul-86 21:50:52 EDT
Organization: UW MathStat, Seattle
Lines: 21
Keywords: digitizing

My apologizes if this request has appeared previously.  I posted
it (I thought) to net.micro.mac, but I didn't see it appear, so
I'm trying again.

I have a simple task in mind: digitizing (with reasonably high resolution)
specific point coordinates located on a series of photographs or x-rays. 
I thought this would be simple with a digitizing tablet like MacTablet:
I would simply write a Basic program to read in mouse/pen
coordinates.  However, on reading the Basic documentation I learned
that the digitizing pen functionally replaces the mouse, and that (in
Basic) coordinates can only be input at the pixel/bit-mapped level of
resolution within windows.  There must be a way to obtain coordinates at the
level of resolution of the digitizer itself (something like 500 lines/in).
I would appreciate hearing from anyone who knows how to handle (or
has software for) this simple task.  (A surprising number of people
knowing something about MacTablet, including a sales rep, have been
unable to help me so far.)

Paul D. Sampson
Dept. of Statistics
Univ. of Washington