On Wed, 12 Apr 2017 06:58:22 +0200 Philippe Verdy via Unicode <unicode@unicode.org> wrote:
> This is the same problem. The same problem as crossword grids where > we need also empty cells (and "black" cells which are equivalent to > an empty cell with a black square symbol instead of letters). And black cells with notches to accommodate the combining marks etc. above and below from the white cells below and above. I've seen that in Thai crosswords. Now, what character would we bend to accommodate these notches? I suspect this might be taking the encoding of picture elements a bit too far. What about circuit diagrams? Richard.