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forbes	cf0cd3db7e	fix(assembly): classify datum plane references in Distance joints Some checks failed Build and Test / build (pull_request) Has been cancelled Details When a Distance joint references a datum plane (XY_Plane, XZ_Plane, YZ_Plane), getDistanceType() failed to recognize it because datum plane sub-names yield an empty element type. This caused the fallback to DistanceType::Other → BaseJointKind::Planar, which adds spurious parallel-normal residuals that overconstrain the system. For example, three vertex-to-datum-plane Distance joints produced 10 residuals (3×Planar) with 6 mutually contradictory orientation constraints, causing the solver to find garbage least-squares solutions. Add early detection of App::Plane datum objects before the main geometry classification chain. Datum planes are now correctly mapped: - Vertex + DatumPlane → PointPlane → PointInPlane (1 residual) - Edge + DatumPlane → LinePlane → LineInPlane - Face/DatumPlane + DatumPlane → PlanePlane → Planar	2026-02-22 15:52:22 -06:00

Author

SHA1

Message

Date

forbes

cf0cd3db7e

fix(assembly): classify datum plane references in Distance joints

Build and Test / build (pull_request) Has been cancelled

Details

When a Distance joint references a datum plane (XY_Plane, XZ_Plane,
YZ_Plane), getDistanceType() failed to recognize it because datum
plane sub-names yield an empty element type. This caused the fallback
to DistanceType::Other → BaseJointKind::Planar, which adds spurious
parallel-normal residuals that overconstrain the system.

For example, three vertex-to-datum-plane Distance joints produced
10 residuals (3×Planar) with 6 mutually contradictory orientation
constraints, causing the solver to find garbage least-squares
solutions.

Add early detection of App::Plane datum objects before the main
geometry classification chain. Datum planes are now correctly mapped:
- Vertex + DatumPlane → PointPlane → PointInPlane (1 residual)
- Edge + DatumPlane → LinePlane → LineInPlane
- Face/DatumPlane + DatumPlane → PlanePlane → Planar

2026-02-22 15:52:22 -06:00

1 changed files with 1 additions and 1 deletions

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mods/solver

Submodule mods/solver updated: bfb787157c...8e521b4519

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