Apps write type on a path one glyph at a time, each placed and turned along the
curve. The importer joined glyphs into a line only while they kept the first
glyph's direction. Type on a gentle curve was flattened into straight lines, and
type on a tighter curve fell apart into one object per glyph.
A glyph that starts about where the previous one ends, turned a little from it
(under about 20°), now continues the line. A line whose baseline turned more than
about 3° becomes type on a path: its path is a smooth curve (Catmull-Rom as cubic
Béziers) through the glyphs' baseline origins and the end of the last glyph.
Spaces between words are measured along the last glyph. Straight type, rotated or
not, imports as before.
Test: "ARCHING" written glyph by glyph along an arc imports as one
type-on-a-path object with that text and a curved path; slightly rotated straight
type stays point type.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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