Engine: model.boundary_condition.symmetry on a datum plane

A symmetry condition (zero normal displacement, zero rotation about the
in-plane axes) on a datum plane normal to X, Y or Z, with its set given or made
of the open design's faces on the plane (a partition's cut faces), so half a
symmetric part is solved as a half. Half a 40 mm bar cut at its mid-width, with
the condition and half the load, bends as the whole bar to 2e-12 with half the
reaction. Inclined planes are refused as not supported yet.

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01UhhZMBTviDQxZvwnyP89fo
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jyvikoandClaude Opus 5.5 authored and Irakli Kourtis committed 2026-10-14 20:08:42 -04:00
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@@ -91,7 +91,7 @@ the control channel and AI agents over MCP (docs/mcp.md) run the same commands.
| Panel | Capability | Status | Command |
|---|---|---|---|
| Boundary Conditions | Boundary Condition — Fixed, displacement or symmetry condition on a set or reference point | ready | `model.boundary_condition.create`, `model.boundary_condition.edit`, `model.boundary_condition.delete` |
| Boundary Conditions | Boundary Condition — Fixed, displacement or symmetry condition on a set or reference point | ready | `model.boundary_condition.create`, `model.boundary_condition.edit`, `model.boundary_condition.delete`, `model.boundary_condition.symmetry` |
| Loads | Load — Force, moment, pressure, traction, gravity or body force | ready | `model.load.create`, `model.load.edit`, `model.load.delete` |
| Flow | Fluid Domain — The box of fluid cells, its fluid, and the obstacle bodies voxelised from their face-tagged surfaces | ready | `model.fluid_domain.create`, `model.fluid_domain.edit`, `model.fluid_domain.delete` |
| Flow | Inlet & Outlet — Velocity inlets, pressure outlets, walls, moving and slip walls, periodic faces | ready | `model.fluid_domain.boundary` |