Re: Power Symbol?

From: =?utf-8?Q?António MARTINS-Tuválkin?= (antonio@tuvalkin.web.pt)
Date: Sat Aug 30 2008 - 16:23:26 CDT

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    On 2008.08.30, 20:20, Tom Gewecke <tom@bluesky.org> wrote:

    > http://en.wikipedia.org/wiki/Power_symbol
    <...>
    > Does anyone know where this is, or whether it is part of any proposal
    > for the future?

    While splitters will find this an excellent reason for a new set of
    symbols, lumbers may want to think twice (quoting from the refered page
    of Wikipedia):

    >> IEC 5007, the power on (line) symbol,

    There’s plenty of roughly suitable symbols already encoded, the lowly "|"
    (U+007C VERTICAL LINE) being the most immediate choice. "❙" (U+2759
    MEDIUM VERTICAL BAR) could be though about, as could "❘" (U+2758 LIGHT
    VERTICAL BAR), but "❚" (U+275A HEAVY VERTICAL BAR) and "︱" (U+FE31
    PRESENTATION FORM FOR VERTICAL EM DASH) probably not.

    >> IEC 5008, the power off (circle) symbol

    Ditto — but the best candidate is surely "○" (U+25CB WHITE CIRCLE).

    >> IEC 5010, the power on-off symbol (line within a circle),

    Not even lumpers will try to push this semantics into "⦶" (U+29B6 CIRCLED
    VERTICAL BAR), I guess — unless the IEC 5010 symbol is an acceptable
    glyph for this symbol.

    >> IEC 5009, the standby symbol (line partially within a broken circle),

    Not even a remotely good idea for this one, apart from juggling stunts
    such as "◡̍" (U+25E1 LOWER HALF CIRCLE and U+030D COMBINING VERTICAL LINE
    ABOVE).

    >> A crescent moon, indicating sleep, is added by IEEE 1621

    Lumpers will be satisfied with "☾" (U+263E LAST QUARTER MOON), I suppose.

    -- 
    António MARTINS-Tuválkin                                            ____.
    <antonio@tuvalkin.web.pt>                                          |  ()|
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