`sketch.constraint.symmetry` (line), `parallel`, `perpendicular`,
`collinear`, `tangent` and `coincident` (point on curve) now take `x` /
`y` for the sketch's own axes, matching what `solid.revolve` means by
lowercase x|y. A real curve with that id still wins.
An axis becomes a linked construction line on it: a new
`LinkSource::SketchAxis` resolved in sketch coordinates, so it stays on
the sketch's axis on any plane, is shared by every constraint on that
axis, is left out of profiles and is reported in `created`. Equal,
concentric, midpoint and horizontal/vertical keep refusing axes, since
the axis line's finite length or fixed direction would make them
meaningless.
Claude-Session: https://claude.ai/code/session_01YDDPmNdRoBgkHcLeUDKVfb
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
* feat(sketch): constructive solving ahead of the numeric solver
Part 1 of splitting #251: the sketch crate only. A graph-constructive front
end (Owen 1991; Fudos & Hoffmann 1997) places what it can by ruler-and-compass
loci and cluster decomposition, Levenberg-Marquardt finishes and verifies the
rest, and the rank analysis stays authoritative for degrees of freedom. Solves
can follow a reference (the previous solution), so edits and drags keep their
branch instead of flipping.
New API: solve_with (hold, reference, analysis, budget) and
solve_after_value_edit; solve and solve_holding keep their signatures as
wrappers, so no caller changes here.
When the seed moves an arc's centre, the arc's unconstructed ends start carried
along (the arc translates) instead of left behind for LM to turn; found by the
reference test 20-slot-constrained.
Refs #203
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TWc1smHYwTSVrVc8SNvS44
* feat(doc): keep a sketch's solved state across value edits
Part 2 of splitting #251 (builds on part 1, the sketch crate):
- Sketch edits solve for the document's values continuing from the stored
solved state (Document::solve_sketch), so a dimension edit keeps the
sketch's branch instead of re-solving from scratch.
- A value edit (parameters, a configuration, the units) that would make a
sketch that solved before fail or turn over is refused with the
conflicting constraints named; otherwise the solved sketches are written
back into the document (Model::adopt_solved_sketches), which changes what
saved designs store.
- Later features are keyed by a sketch's solved geometry (to a 1e-6 mm
quantum), so setting a value back reuses their earlier results.
- Solved sketches in a model state are shared (Arc) between states.
Refs #203
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TWc1smHYwTSVrVc8SNvS44
* feat(sketch): live drag that keeps its solution, ended by sketch.drag_end
Part 3 of splitting #251 (builds on part 2):
- sketch.drag follows a long move in short held steps, so the geometry keeps
its branch, and reports how far it got (reached, at).
- live: true runs one frame of an interactive drag: the sketch is solved
once and shown, later features keep their last result (marked stale)
until sketch.drag_end or any command that reads the model evaluates it
(CommandSpec::live, reads_model, doc_only).
- sketch.drag_end adds the constraint the drag let go on and evaluates the
model once.
- Undo and redo evaluate a new document once (execute does) instead of
twice.
- The viewport drives drags through live frames and drag_end; dimension
text drags start only off sketch geometry.
Refs #203
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TWc1smHYwTSVrVc8SNvS44
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Re-reading an unchanged projected face could walk its loops in another order or
direction, or (from some meshes) return the same half of a split circle twice.
The link was then rebuilt, warning and dropping constraints on it. Projected
geometry now compares by position regardless of order and direction, and a
duplicated half arc is turned into the missing half.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL
