AMAP Parity Matrix

This matrix summarizes current PlantGeom parity for AMAPStudio core reconstruction semantics.

Implemented in This Release

AMAP semantic area	Status	Notes
AMAP profile as default behavior	Implemented	Applied by default in attribute-based reconstruction APIs.
Azimuth/Elevation orientation stage	Implemented	World-space override stage (`RotZ(azimuth)` then `RotY(-elevation)`).
Orthotropy / StiffnessAngle stage	Implemented	`StiffnessAngle` precedence, world-space bending axis from current main direction.
DeviationAngle stage	Implemented	World-space pre-rotation around global `+Z`.
Projection stage	Implemented	`NormalUp` and `Plagiotropy` with deterministic order (`NormalUp` first) and robust degenerate-frame handling.
Geometrical constraints (`GeometricalConstraint`)	Implemented	Cone/cylinder/plane families, including elliptic and cone-cylinder variants, with AMAP-style shared constraint initialization when a constraint object is reused.
Explicit-coordinate handling variants (AMAP coordinate delegates)	Implemented	`:explicit_start_end_required` (strict start/end coordinates) and `:explicit_rewire_previous` (previous-segment reorientation from explicit node positions) via `AmapReconstructionOptions(explicit_coordinate_mode=...)` (`coordinate_delegate_mode` alias supported).
Allometry delegate core semantics	Implemented	Width/height interpolation, component propagation (split-vs-copy), predecessor top smoothing, and complex accumulation from terminal components.
Stiffness propagation (`Stifness`, `StifnessTapering`)	Implemented	AMAP-style propagation writes `StiffnessAngle` to `/`-linked component children (toggle with `StiffnessApply`).
Stiffness straightening	Implemented	`StiffnessStraightening` dampens propagated bending after a configurable relative position (`0..1` or `0..100`).
Broken segment handling	Implemented	`Broken` forces downstream component `StiffnessAngle=-180` (AMAP `StiffnessBrokenDelegate` behavior).
Orientation reset aliases	Implemented	`OrientationReset` / `Global` reset local basis before insertion/euler stages.
Insertion alias compatibility	Implemented	`Insertion` accepted in insertion mode alias set.
Branching-order auto-compute	Implemented	`branching_order!` run once when needed and enabled.
Order-based insertion/phyllotaxy overrides	Implemented	`insertion_y_by_order` and `phyllotaxy_by_order` with `:override` / `:missing_only`.
Existing API surface	Implemented	Existing reconstruction calls are kept, with AMAP stages now active by default.
MeshBuilder-style extrusion profiles	Implemented	`extrude_profile_mesh` / `extrude_profile_refmesh` / `extrude_tube_mesh` plus helpers `circle_section_profile` and `leaflet_midrib_profile`.
Mesh path helpers (`makePath`, `makeSpline`, `makeInterpolation`, `makeCurve`)	Implemented	Available as `extrusion_make_path`, `extrusion_make_spline`, `extrusion_make_interpolation`, `extrusion_make_curve`.
Lathe helpers (`lathe`, `latheGen`)	Implemented	Available as `lathe_mesh` / `lathe_refmesh` and `lathe_gen_mesh` / `lathe_gen_refmesh`, with AMAP-like `method=:curve` profile interpolation.
Procedural refmesh caching	Implemented	`cache=...` in `*_refmesh` constructors preserves the "instantiate once, transform many" pattern for generated meshes.

Not Implemented Yet (Deferred)

AMAP delegate / feature	Status	Workaround in PlantGeom
Topology editor specific behaviors	Deferred	Use explicit conventions and `conventions=Dict(...)` overrides.

Recommendation

For AMAP-like reconstruction from MTG attributes, start with:

set_geometry_from_attributes!(
    mtg,
    ref_meshes;
    convention=default_amap_geometry_convention(),
)

Then specialize with:

custom GeometryConvention per organ via conventions=Dict(...)
custom AmapReconstructionOptions(...) order maps and aliases