FontTools Pens

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This came up in a Tweet: https://twitter.com/rob_arista/status/1343503190453608448?s=20

How to use FontTools Pens.

Just’s suggested topics for such a post:

• what are pens
• what are pens for
• segment pens vs point pens
• using a pen to get outline data from a glyph
• using a pen to draw into a glyph
• using various fonttools pens
• writing your own pens

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Fuzzy attempt at understanding:

A pen can be thought of as a "bucket to hold outline data," which you can then feed into a draw method to actually use that data.

The basic process is like this:

1. Import pen
2. Make a pen object: pen = CocoaPen(none)
3. Load data to pen object
4. Draw the pen into something

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Better thread of explanation:

https://twitter.com/justvanrossum/status/1352994059556696065?s=21

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https://robofont.com/documentation/building-tools/toolkit/pens/

https://github.com/jenskutilek/TypoLabs2016