Path: utzoo!mnetor!uunet!husc6!mit-eddie!mit-amt!dlleigh
From: dlleigh@mit-amt.MEDIA.MIT.EDU (Darren L. Leigh)
Newsgroups: comp.sys.amiga
Subject: Scrolling a single plane -- heart monitor
Message-ID: <2143@mit-amt.MEDIA.MIT.EDU>
Date: 15 Mar 88 04:26:54 GMT
Reply-To: dlleigh@media-lab.UUCP (Darren L. Leigh)
Organization: MIT Media Lab, Cambridge MA
Lines: 25
Keywords: horizontal scrolling electrocardiogram

As part of a lab course here at MIT I am building a heart monitor, and
I would like to use my A1000 as a super intelligent display.

The idea is for the Amiga to receive ECG data via the parallel port at
about 200 samples/sec.  I then want to display this data in real time,
scrolling horizontally, as seen in any good hospital sitcom.  There
should be at least five seconds of data on the screen all the time so
I will probably use high-res mode with overscan and cut down the
sampling rate some.  The sampled data can probably be left in one
plane (though more would be nice for anti-aliasing) and I would like
to use another plane or two to display heart statistics.

Is it possible to horizontally scroll only one plane out of a
multi-plane bitmap?  How quick is horizontal scrolling?  I mean
actually moving all that data, not just moving a pointer.  What would
be the best way to do this?  Any and all ideas are appreciated.

The actual ECG hardware is not that expensive (build it yourself for
$25, even less if you you can scrounge parts).  If people are
interested I could post plans and software when I finish.

=============================================================================
 Darren Leigh			dlleigh@media-lab.mit.edu
 362 Memorial Dr.               mit-amt!dlleigh
 Cambridge, MA 02139                                  Condorito Lives!