Adam bcbd31f3a4 M3.64: width profiles run smooth between their points ...

A width profile's sides now run as a cubic Hermite curve through the
points, its slope at each one the weighted harmonic mean of the secants
either side (Fritsch-Carlson). That is C1 continuous and monotone
between points, so it never overshoots them, a width change eases in and
out instead of making a corner, and moving one point only reshapes the
two segments beside it. The ends are flat; two points at one t are still
a step.

The outline samples the curve along the path (densify subdivides each
profile segment) so the smooth width draws on straight runs too, and a
flat profile keeps its old straight pieces.

Hit testing now counts every segment near enough to reach the point, as
the wider side of a farther one can paint past the nearest; gradient
strips reach over projecting dash caps. Tests updated for the new
sampled widths; new tests cover smoothing, monotonicity, locality and
steps.

2026-10-20 10:02:37 +02:00

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arrow.rs

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dash.rs

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gradient.rs

M3.64: width profiles run smooth between their points

2026-10-20 10:02:37 +02:00

outline.rs

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tests_arrows.rs

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tests_fit.rs

M3.64: width profiles run smooth between their points

2026-10-20 10:02:37 +02:00

tests_gradient.rs

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tests_reach.rs

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tests.rs

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width.rs

M3.64: width profiles run smooth between their points

2026-10-20 10:02:37 +02:00