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OGCMetOceanDWG / WorldWeatherSymbols

A complete set of WMO weather symbols in SVG with full metadata.
https://github.com/OGCMetOceanDWG/WorldWeatherSymbols
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add functionality to convert symbols to fonts and unicode support #38

Open wxtim opened 5 years ago

wxtim commented 5 years ago

Is it worth adding scripts to convert these svgs to

  1. Fonts
  2. Local unicode symbols in the local symbols section of the unicode space.
chris-little commented 5 years ago

Both are good ideas, but think (2) Unicode Private Symbol Space of 2000 is front runner and will get most mileage (sorry about all the metaphors).

The problem with (1) is choosing which font formats. Even SVG Versions 1, 1.2 and 2 haven't quite got it right yet, though I am open to being corrected.

dopplershift commented 5 years ago

MetPy went to the trouble of producing a TTF font from these images, at least for weather symbols. We elected to use the private symbol space, starting at 0xE900.

chris-little commented 5 years ago

Thanks for this info. I think using the Basic Plane Private Use Area (U+E000–U+F8FF) of 6400 symbols is a good decision, as I am not aware of the use of the 'higher' planes enabled by ISO10646: Private Use Area-A (U+F0000–U+FFFFD) and Private Use Area-B (U+100000–U+10FFFD), with 64K symbols each, and possibly used in China. Is there any reason for starting at 0xE900 rather than nearer 0xE000, like 0xE001?

dopplershift commented 5 years ago

I’m honestly not sure why we went with 0xE900, other than maybe to be less likely to conflict.

ronaldtse commented 5 years ago

Hello folks! @chris-little asked during the most recent OGC DocTeam session on whether Metanorma supports these symbols from the unicode private plane. Is there going to be an official font for these?

(we're tracking it here: https://github.com/riboseinc/metanorma-ogc/issues/24)