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tobywf/sbix_extract.py

Created April 6, 2020 04:54
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Extract SBIX glyphs from a font
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sbix_extract.py
# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6sbix.html
# requires fonttools lib (`pip install fonttools>=4.7.0`)
import sys
from fontTools.ttLib import TTFont
font = TTFont(sys.argv[1])
sbix = font["sbix"]
max_ppem = max(sbix.strikes.keys())
strike = sbix.strikes[max_ppem]
for bitmap in strike.glyphs.values():
if bitmap.graphicType == "png ":
filename = f"glyph-{bitmap.glyphName}.png"
with open(filename, "wb") as f:
f.write(bitmap.imageData)
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