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I'm trying to generate a ttf font file from a bunch of SVGs or PNGs. Every time I try, I get the error:

"Warning: Font contained no glyphs"

I've tried this on Mac and Linux:

font = fontforge.font()
glyph = font.createChar(65, "font1")
glyph.importOutlines("1.png")
glyph2 = font.createChar(66, "font2")
glyph2.importOutlines("2.png")
glyph3 = font.createChar(67, "font3")
glyph3.importOutlines("3.png")
font.generate("output.ttf")
I tried the hints on:
Import a sequence of .svg files into FontForge as glyphs and output a font file
but still couldn't get it to work.
If anyone has any ideas on a better library I can call from commmandline to convert SVG to TTF, that would be great.
                because ttf font use vector graphics. you need to vecotrize your png's en.wikipedia.org/wiki/TrueType  how to make a vector from png goinkscape.com/how-to-vectorize-in-inkscape
– Nivatius
                Dec 4, 2018 at 13:40
        
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