[BRLTTY] Dimensions of braille displays

[Hermann]

Hello Sébastien,
this story is a bid longer:
First, you could switch TIM between textual and graphical mode.
Its size was about a man's hand. And now imagine: You show a Icon on that
display, let's say a microphone for sound input. You have to made this icon
smaller, so that it fits on the display. It changes its shape; can you
identify it?
Think of those persons who are blind from their birth: They have often
little imagination of shapes when the form is changed by making them larger
or smaller. It has to do with perspective.
I don't know how many dots this display had. But you can imagine that there
were a whole lot of them.
I hope you have got an idea of the problems.
Regards
Hermann