What's the typical refresh rate of a braille display?
He actually mentioned that. unfortunately
for an 18 character wide reader:"$1,300+. Larger ones exist, but they are even more expensive and uniformly single-line."
so no 80*40 DF map display in braile
But for walls and such you wouldn't need very wide. Don't think of it as a braille display - think of it as a 2n*3 dot display - 18 characters would mean 36 dots wide. A 36 wide segment of the map viewed at a time would be workable... especially if you had two modes - one with three dots (that could display 2^3=8 different possibilities), and one with one dot (passable/impassable or type/not type, or whatever...).
So for example: (and pardon me if I translate to braille wrong - it's been a while.)
(Oops - I thought it was an even width. Just ignore the last row please?)
in the one dot type:
... ..
..........
.
which would get translated to (hopefully... I`m going from memory and
Wikipedia here):
qh--g
Or in the three dot type (you would be able to read only the first row, and would have to scroll down for the other two...):
... .
... ..
. .....
which would get translated to (hopefully...):
]<--h
There are eight possible types for three-dot representations. One possibility, in order:
| |.| |.| |.| |.|
| | |.|.| | |.|.|
| | | | |.|.|.|.|
0 1 2 3 4 5 6 7
- (0) Empty space
- (1) Up stair or ramp
- (2) Creature or object
- (3) Wall
- (4) Floor
- (5) Down stair or ramp
- (6) Interesting wall(ore, Construction (Workshop, et cetera))
- (7) Unexplored
Anyone else have any ideas about this?
Of course this assumes you have some sort of braille display. If you don't, it's sort of moot.
So anyone reading this that has a braille display, can you say the width in characters, the size of a single character (three rows or 4), the encoding that you typically use, and the approximate refresh rate? I doubt this will be usable as anything other then a thought experiment, but it`s worth a try at least...
Fakedit: This might work with sound as well - to get a general idea of something scan through using some sort of dissonant chord (as a major chord blends in with itself too well to pick out easily) left to right with a distinctive sound at the end. Actually, if you were wearing headphones it could pan the sound L-R as well... Hmm...
Neat idea, and I hope I can help... if it works it could be
!!awsome!!.