The authoring mode #5

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opened 2026-10-18 13:15:00 +00:00 by jimmy · 0 comments

jimmy commented

2026-10-18 13:15:00 +00:00

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Part of #1

Goal

Build the authoring mode, the screen that turns a traced chart into glyph files.

A reference image sits under a translucent PencilKit canvas, with the guide lines drawn over it. Jimmy draws each stroke of a letter in the taught order. The app fits cubic Bezier segments to each stroke, for example with Schneider's algorithm, and shows the control points. A control point can be moved by hand. The result is saved as a glyph file in the format of #2. The same screen prints the tracing chart as a PDF through UIGraphicsPDFRenderer when a printed chart is easier to trace.

Done when Jimmy can trace one letter from the chart, fix one control point, and save a file that the loader of #2 reads back with the same strokes in the same order.

Part of #1 ## Goal Build the authoring mode, the screen that turns a traced chart into glyph files. A reference image sits under a translucent PencilKit canvas, with the guide lines drawn over it. Jimmy draws each stroke of a letter in the taught order. The app fits cubic Bezier segments to each stroke, for example with Schneider's algorithm, and shows the control points. A control point can be moved by hand. The result is saved as a glyph file in the format of #2. The same screen prints the tracing chart as a PDF through `UIGraphicsPDFRenderer` when a printed chart is easier to trace. Done when Jimmy can trace one letter from the chart, fix one control point, and save a file that the loader of #2 reads back with the same strokes in the same order.

jimmy added the

wayfinder:task

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2026-10-18 13:15:00 +00:00

jimmy referenced this issue

2026-10-18 13:15:01 +00:00

The 26 lowercase exemplars, traced #6

jimmy added a new dependency

2026-10-18 13:15:26 +00:00

#2 The glyph file format

jimmy added a new dependency

2026-10-18 13:15:27 +00:00