Grant Edwards wrote:
> That's intersting.  I can see how the size of the character
> cell affects the storage requirments, but you're saying that
> the actual shape of the glyph inside that cell affects the
> storage requirements?  
[...]
> I would think that all of the above would take 5 (or 7,
> depending on implementation) bytes each regardless of what the
> glyph looks like. 

If you are clever with how you design the font, you may be
able to overlap the characters. This was done at least in
the old Cosmac (RCA 1802) based computers, where memory
was *really* tight. I don't know if it was done here though.
-- 
Pertti

On 2008-01-23, Hul Tytus <ht@panix.com> wrote:

> The fonts were chosen to reduce storage space which is a bit
> rough on the eye. As Grant mentioned, the 'R' is ugly. The 'K'
> is about the same, maybe a little worse.

That's intersting.  I can see how the size of the character
cell affects the storage requirments, but you're saying that
the actual shape of the glyph inside that cell affects the
storage requirements?  

So an 5x7 R that looks like this:

XXXXX
X   X
X   X
XXXXX
X X
X X
X X

Takes up less space than a 5x7 R that looks like this?

XXXX
X   X
X   X
XXXX
X X
X  X
X   X 

Likewise, a 5x7 G that looks like this:

XXXXX
X
X
XXXXX
X   X
X   X
XXXXX

Takes up less space than one that looks like this?

 XXX
X   X
X   
X
X  XX
X   X
 XXX

I would think that all of the above would take 5 (or 7,
depending on implementation) bytes each regardless of what the
glyph looks like. 

BTW, you need to fix your newsreader configuration: it's
somehow not putting correct References: headers in your
postings.

-- 
Grant Edwards                   grante             Yow! Are we THERE yet?
                                  at               
                               visi.com            

comp.arch.embedded
rs232 to vga converter

	The fonts were chosen to reduce storage space which is a bit rough 
on the eye. As Grant mentioned, the 'R' is ugly. The 'K' is about the same, 
maybe a little worse. This and the lack of lower case letters make reading 
a novel on the rs-big-print painful.
	But, if reading a thermal monitor in a casting process or the 
digital readouts on a machine tool or the output of a weather monitor from 
10, 20 or 30 feet, the rs-big-print starts to shine. The 6 line/12 
characters look big, even on an old 13 in. monitor and at 20 & 30 feet they
are comfortable to read. All in a 2.5 x 1.75 x .8 in. box.
	It still pays to avoid the r's & k's though.

Hul


->> Clever, but your fonts (which appear to use a 5x7 grid) need some work.
->> What's wrong with a typical LCD 5x7 font?
->
-> Funny, I was thinking the exact same thing!
-
-That was my first reaction: the fonts are brutal to look at.
-The upper case R is particularly painful.
-
-Grant Edwards