Moving pictures/data between video scanners, Macintoshes and DMDs

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2 total messages Started by Neal D. McBurnett Wed, 30 Jan 1985 23:05

#522

Author: Neal D. McBurnett
Date: Wed, 30 Jan 1985 23:05

22 lines
1489 bytes

I would like to be able to display pictures created on my DMD on a
Macintosh, and vice versa.  I also hear that there is a video scanner
for the mac, and I would like to be able to display stuff from it on my DMD.

Given the shut-in feeling I have in my office with no outside windows,
one of my objectives would be to focus a camera on the Rocky Mountains
and have a fresh image transmitted every hour or so to one of the windows
on my DMD.

So what are the data formats?  The DMD uses three possibilities, to my
knowledge:
	dmdp format (also used by dmdfmt for sending to imagen, c.itoh, etc),
	twid format.
	large icon format (downloaded by the CATALOG program)
		(actually several sub-formats....)

dmdp is currently only able to upload bitmaps to the host, and
CATALOG can only download bitmaps.

What does a Mac picture look like?
Thanks!
-Neal McBurnett, ihnp4!druny!neal, 303-538-4852

Re: Moving pictures/data between video scanners, Macintoshes and DMDs

#531

Author: Andrew T. Schnable
Date: Fri, 01 Feb 1985 01:08

12 lines
1178 bytes

I know of someone with a program to convert mac images
into dmdp format bitmaps. It would be easy to write a 
similar program to convert twid images. I was going to add
a bitmap download into dmdp allowing you to locally format 
or display the downloaded image.  The beginnings of this
can be found in the latest dmdp. I would be interested in
hearing about trade-offs in bitmap storage techniques. 
twid doesn't do anything - it's a straght representation.
dmdp has some runlength bit encoding.  I'm not sure
what the mac's bitmap format is.

andy ihuxo!schnable

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