Scenario

我有一组名为 32.png,..,126.png 的图像，是与文件名中数字的ASCII可打印字符有关的手写字母，我打算将这些转换为一个字体文件，如 .ttf ，这样我就可以用它输入（基本的）latex字母。

在翻阅了以下文件后 project description 和 文件 我还没能确定如何在python中把这些图片转换成 .ttf 的字体文件。

我似乎可以把 .png 的图像转换成 .svg 的格式，因为fonttools通常用于字体矢量，但我没有找到一个输出字体文件的方法。因此，我想问一下。

Question

如何在Python中把一组图片（无论是 .png 还是 .svg ）转换成 .ttf 的字体？

Attempts

ModuleNotFoundError: No module named 'fontforge' in 将 .svg 文件转换为 .ttf 文件的脚本 .名为 svgs2ttf 的脚本被调用，命令是： python svgs2ttf.py examples/example.json 。

import sys
import os.path
import json
import fontforge
#python svgs2ttf.py examples/example.json
IMPORT_OPTIONS = ('removeoverlap', 'correctdir')
    unicode
except NameError:
    unicode = str
def loadConfig(filename='font.json'):
    with open(filename) as f:
        return json.load(f)
def setProperties(font, config):
    props = config['props']
    lang = props.pop('lang', 'English (US)')
    family = props.pop('family', None)
    style = props.pop('style', 'Regular')
    props['encoding'] = props.get('encoding', 'UnicodeFull')
    if family is not None:
        font.familyname = family
        font.fontname = family + '-' + style
        font.fullname = family + ' ' + style
    for k, v in config['props'].items():
        if hasattr(font, k):
            if isinstance(v, list):
                v = tuple(v)
            setattr(font, k, v)
        else:
            font.appendSFNTName(lang, k, v)
    for t in config.get('sfnt_names', []):
        font.appendSFNTName(str(t[0]), str(t[1]), unicode(t[2]))
def addGlyphs(font, config):
    for k, v in config['glyphs'].items():
        g = font.createMappedChar(int(k, 0))
        # Get outlines
        src = '%s.svg' % k
        if not isinstance(v, dict):
            v = {'src': v or src}
        src = '%s%s%s' % (config.get('input', '.'), os.path.sep, v.pop('src', src))
        g.importOutlines(src, IMPORT_OPTIONS)
        g.removeOverlap()
        # Copy attributes
        for k2, v2 in v.items():
            if hasattr(g, k2):
                if isinstance(v2, list):
                    v2 = tuple(v2)
                setattr(g, k2, v2)
def main(config_file):
    config = loadConfig(config_file)
    os.chdir(os.path.dirname(config_file) or '.')
    font = fontforge.font()
    setProperties(font, config)
    addGlyphs(font, config)
    for outfile in config['output']:
        sys.stderr.write('Generating %s...\n' % outfile)
        font.generate(outfile)
if __name__ == '__main__':
    if len(sys.argv) > 1:
        main(sys.argv[1])
    else:
        sys.stderr.write("\nUsage: %s something.json\n" % sys.argv[0] )
    
1 个评论
Razetime：
stackoverflow.com/questions/31427903/...可能的重复。
python
fonts
svg
a.t.
发布于 2020-08-12
1 个回答
a.t.
发布于 2020-08-12
已采纳
0 人赞同

FontForge不是一个python模块，而是独立的软件。因此，与其从python脚本中调用FontForge，不如从fontforge的可执行文件中调用python。由于我想从一个python脚本中创建.ttf格式的字体。我写了一个额外的名为execute.py的python脚本，它执行了一个cmd的命令，该命令执行了执行pythonsvgs2ttf脚本的fontforge。
The execute.py包含。
import os
os.system('cmd /k "fontforge -lang=py -script svgs2ttf examples/example.json"')
The svgs2ttf script is modified from this repository包含。
# one can run  this script with:
#fontforge -lang=py -script svgs2ttf examples/example.json
import sys
import os.path
import json
import fontforge
IMPORT_OPTIONS = ('removeoverlap', 'correctdir')
    unicode
except NameError:
    unicode = str
def loadConfig(filename='font.json'):
    with open(filename) as f:
        return json.load(f)
def setProperties(font, config):
    props = config['props']
    lang = props.pop('lang', 'English (US)')
    family = props.pop('family', None)
    style = props.pop('style', 'Regular')
    props['encoding'] = props.get('encoding', 'UnicodeFull')
    if family is not None:
        font.familyname = family
        font.fontname = family + '-' + style
        font.fullname = family + ' ' + style
    for k, v in config['props'].items():
        if hasattr(font, k):
            if isinstance(v, list):
                v = tuple(v)
            setattr(font, k, v)
        else:
            font.appendSFNTName(lang, k, v)
    for t in config.get('sfnt_names', []):
        font.appendSFNTName(str(t[0]), str(t[1]), unicode(t[2]))
def addGlyphs(font, config):
    for k, v in config['glyphs'].items():
        g = font.createMappedChar(int(k, 0))
        # Get outlines
        src = '%s.svg' % k
        if not isinstance(v, dict):
            v = {'src': v or src}
        src = '%s%s%s' % (config.get('input', '.'), os.path.sep, v.pop('src', src))
        g.importOutlines(src, IMPORT_OPTIONS)
        g.removeOverlap()
        # Copy attributes
        for k2, v2 in v.items():
            if hasattr(g, k2):
                if isinstance(v2, list):
                    v2 = tuple(v2)
                setattr(g, k2, v2)
def main(config_file):
    config = loadConfig(config_file)
    os.chdir(os.path.dirname(config_file) or '.')
    font = fontforge.font()
    setProperties(font, config)
    addGlyphs(font, config)
    for outfile in config['output']:
        sys.stderr.write('Generating %s...\n' % outfile)
        font.generate(outfile)
if __name__ == '__main__':
    if len(sys.argv) > 1:
        main(sys.argv[1])
    else:
        sys.stderr.write("\nUsage: %s something.json\n" % sys.argv[0] )
它可以增强转换功能，转换比a和b更多的符号，在examples文件夹中包括所有的符号图像来生成字体。
In response to the comments, here is the contents of the example.json:
{ "props":
  { "ascent": 96
  , "descent": 32
  , "em": 128
  , "encoding": "UnicodeFull"
  , "lang": "English (US)"
  , "family": "Example"
  , "style": "Regular"
  , "familyname": "Example"
  , "fontname": "Example-Regular"
  , "fullname": "Example Regular"
, "glyphs":
  { "0x3f": { "src": "question.svg", "width": 128 }
  , "0xab": { "src": "back.svg", "width": 128 }
  , "0x263a": ""
  , "0x2723": "overlap-test.svg"
  , "0x1f304": "outline-test.svg"
, "sfnt_names":
  , ["English (US)", "Family", "Example"]
  , ["English (US)", "SubFamily", "Regular"]
  , ["English (US)", "UniqueID", "Example 2014-12-04"]
  , ["English (US)", "Fullname", "Example Regular"]
  , ["English (US)", "Version", "Version 001.000"]
  , ["English (US)", "PostScriptName", "Example-Regular"]
, "input": "."