First of all, thank you for this library, it's really nice to be able to render graphs without leaving the terminal.
Blank rectangles in braille plots are currently filled in using the U+0020 (SPACE) character, which works fine in some terminals, but renders poorly in others. Examples include the chrome console and the chromeos terminal (see screenshot below).
Braille line plot rendered in the chromeos terminal, with Source Code Pro:
Braille line plot rendered in the VSCode console, with Hasklig:
I would recommend using the U+2800 (BRAILLE PATTERN BLANK) character instead, which would guarantee that the graphs look right even on poorly-implemented terminals.
Monkey-patched version of the first screenshot, with the output piped into grep (VSCode looked identical):
First of all, thank you for this library, it's really nice to be able to render graphs without leaving the terminal.
Blank rectangles in braille plots are currently filled in using the
U+0020 (SPACE)character, which works fine in some terminals, but renders poorly in others. Examples include the chrome console and the chromeos terminal (see screenshot below).Braille line plot rendered in the chromeos terminal, with Source Code Pro:
Braille line plot rendered in the VSCode console, with Hasklig:
I would recommend using the
U+2800 (BRAILLE PATTERN BLANK)character instead, which would guarantee that the graphs look right even on poorly-implemented terminals.Monkey-patched version of the first screenshot, with the output piped into grep (VSCode looked identical):