dotCooCoo 90be8fba18 Brushes: art along a smooth curve keeps smooth edges ...

Art and pattern brushes bent their art along the chords of the flattened
path, with the tangent blended linearly between vertices, and scatter
brushes placed and turned their copies on the same chords. On a smooth
curve the bent art's edges followed the chords, and the curve fitted to
the result turned by up to a few degrees at its smooth anchors.

- On a chord that comes from flattening a curve, the frame now follows
  the cubic through both vertices with their tangents, so position and
  tangent meet at every vertex. A vertex tangent between two such chords
  is the tangent of the circle through the vertex and its neighbors, and
  it stays within a few times the flattening tolerance of each chord, so
  the frame stays near the curve next to a long chord. A curved chord
  whose end tangents turn further than that keeps to the chord.
- Art on a line of the path stays on the line, and a line keeps its own
  direction where it meets a curve.
- A calligraphic nib that follows the pen samples between vertices on
  the same frame, so its outline keeps its distance from the curve.

2026-11-13 14:58:15 -08:00

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Brushes: art along a smooth curve keeps smooth edges

2026-11-13 14:58:15 -08:00

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