修改了一些之前增加功能的bug

backend/engine/cdsl_engine/build123d_adapter.py

@@ -5,7 +5,7 @@ from __future__ import annotations
 import math
 from typing import Any, Iterable
 
-from build123d import Axis, Compound, Edge, Face, Helix, Location, Plane, ShapeList, Solid, Vector, Wire, export_step
+from build123d import Axis, Compound, Edge, Face, Location, Plane, ShapeList, Solid, Vector, Wire, export_step
 
 from .parametric_thread import build_thread_solid
 from .runtime_types import AxisSpec, HoleSpec, PlaneSpec, ThreadSpec, TopologyRecord, Vector3, canonical_plane_signature
@@ -163,8 +163,11 @@ class Build123dGeometryAdapter:
             return None
         if len(members) == 1:
             return members[0]
-        # build123d 类型桩未声明 make_compound，但运行时存在（宽泛类型桩噪音）。
-        return Compound.make_compound(members)  # pyright: ignore[reportAttributeAccessIssue]
+        # build123d 0.11 的有效运行时合并 API 是 Compound.make_composite（多体域
+        # 合并为 Compound/Part）；Compound.make_compound 在类型桩与运行时均不存在，
+        # 此前的调用在多成员 ShapeList 下会 AttributeError。类型桩未声明
+        # make_composite，保留宽泛类型桩噪音抑制。
+        return Compound.make_composite(members)
 
     @staticmethod
     def extrude(face: Face, direction: Vector3) -> Solid:
@@ -438,9 +441,27 @@ class Build123dGeometryAdapter:
         return body.chamfer(distance_mm, distance_2_mm, list(edges), face=face)
 
     @staticmethod
-    def sweep(section: Face, spine: Edge | Wire) -> Solid:
+    def sweep(
+        section: Face | Wire,
+        spine: Edge | Wire,
+        *,
+        inner_wires: list[Wire] | None = None,
+        make_solid: bool = True,
+        is_frenet: bool = False,
+        transition: Any = None,
+    ) -> Solid:
         # 沿路径线扫掠截面生成实体（build123d 原生扫掠，路径可为直线/曲线/螺旋边）。
-        return Solid.sweep(section, spine)
+        # 默认值对齐 build123d Solid.sweep：make_solid=True 封盖成体；is_frenet=True
+        # 使截面沿路径 Frenet 标架取向保持恒定（螺纹/花键"键侧平行"所需）；
+        # transition 为 None 时交给 build123d 默认的 Transition.TRANSFORMED。
+        sweep_options: dict[str, Any] = {
+            "inner_wires": inner_wires,
+            "make_solid": make_solid,
+            "is_frenet": is_frenet,
+        }
+        if transition is not None:
+            sweep_options["transition"] = transition
+        return Solid.sweep(section, spine, **sweep_options)
 
     @staticmethod
     def sweep_path(points: Iterable[Vector3]) -> Wire:
@@ -451,15 +472,32 @@ class Build123dGeometryAdapter:
         return Wire([Edge.make_line(vertices[index], vertices[index + 1]) for index in range(len(vertices) - 1)])
 
     @staticmethod
-    def helix_path(radius_mm: float, pitch_mm: float, turns: float, *, lefthand: bool = False) -> Edge:
+    def helix_path(
+        radius_mm: float,
+        pitch_mm: float,
+        turns: float | None = None,
+        *,
+        height_mm: float | None = None,
+        lefthand: bool = False,
+    ) -> Edge:
         # 构造螺旋线路径（单段 Edge），供扫掠/后续螺纹、斜齿等特征使用。
         # 螺旋从 (radius, 0, 0) 处沿 +Z 方向上升（lefthand=True 时反向缠绕）。
+        # turns（圈数）与 height_mm（轴向总高）二选一驱动：按圈适配斜齿/花键，
+        # 按高度适配 parametric_thread（length + 两端余量）。构造与 parametric_thread
+        # 原 Edge.make_helix 同源，保证生成器复用后逐位一致。
         if pitch_mm <= 0:
             raise ValueError("helix pitch must be positive")
-        if turns <= 0:
-            raise ValueError("helix turns must be positive")
-        helix = Helix(pitch=pitch_mm, height=turns * pitch_mm, radius=radius_mm, lefthand=lefthand)
-        return helix.edges()[0]
+        if (turns is None) == (height_mm is None):
+            raise ValueError("helix_path needs exactly one of turns or height_mm")
+        if turns is not None:
+            if turns <= 0:
+                raise ValueError("helix turns must be positive")
+            height = turns * pitch_mm
+        else:
+            if height_mm <= 0:
+                raise ValueError("helix height must be positive")
+            height = height_mm
+        return Edge.make_helix(pitch=pitch_mm, height=height, radius=radius_mm, lefthand=lefthand)
 
     @staticmethod
     def pattern_linear(body: Any, count: int, direction: Vector3, spacing_mm: float) -> Any:

backend/engine/cdsl_engine/capabilities.py

@@ -21,7 +21,7 @@ _SKETCH_ATOM_PREFIXES = ("extrude_", "revolve_")
 _PRIMARY_ATOMICS = frozenset({
     "extrude_add_blind", "extrude_add_two_sided", "extrude_cut_blind",
     "revolve_add", "revolve_cut", "hole_blind", "hole_countersink",
-    "hole_counterbore", "sphere_add",
+    "hole_counterbore", "sphere_add", "box_add", "cylinder_add",
 })
 _HOLE_ATOMICS = frozenset({"hole_blind", "hole_countersink", "hole_counterbore", "hole_wizard"})
 _ACTIVE_BODY_REQUIRED = frozenset({
@@ -32,8 +32,8 @@ _ACTIVE_BODY_REQUIRED = frozenset({
 })
 _BODY_MUTATING_ATOMICS = frozenset({
     "extrude_add_blind", "extrude_add_two_sided", "extrude_cut_blind",
-    "revolve_add", "revolve_cut", "sphere_add", "thread_add", "thread_cut",
-    *_HOLE_ATOMICS, "fillet", "chamfer",
+    "revolve_add", "revolve_cut", "sphere_add", "box_add", "cylinder_add",
+    "thread_add", "thread_cut", *_HOLE_ATOMICS, "fillet", "chamfer",
 })
 # A pattern may replay a previous pattern as well as a direct body mutation.
 # Context-only features have no geometry definition to instance.  thread_add
@@ -42,7 +42,7 @@ _BODY_MUTATING_ATOMICS = frozenset({
 # location.
 _REPLAYABLE_ATOMICS = (
     _BODY_MUTATING_ATOMICS - frozenset({"thread_add", "thread_cut"})
-) | frozenset({"pattern_linear", "pattern_mirror"})
+) | frozenset({"pattern_linear", "pattern_mirror", "pattern_circular"})
 _SUPPORTED_EXTENTS = frozenset({
     "blind", "mid_plane", "through_all", "through_all_both", "through_all_and_blind",
     "up_to_surface", "up_to_vertex", "offset_from_surface", "through_next", "up_to_body",
@@ -428,6 +428,18 @@ class CapabilityAnalyzer:
                         ))
                 if node.atomic_id == "pattern_mirror" and not params.get("mirror_plane"):
                     blockers.append(self._blocker(node.feature_id, "missing_mirror_plane", "Mirror pattern has no mirror plane"))
+                if node.atomic_id == "pattern_circular":
+                    if not _has_explicit_axis(params.get("axis")):
+                        blockers.append(self._blocker(
+                            node.feature_id, "missing_circular_axis",
+                            "Circular pattern requires an explicit axis with origin_mm and direction",
+                        ))
+                    pattern_count = params.get("pattern_count")
+                    if pattern_count is None or int(pattern_count) < 1:
+                        blockers.append(self._blocker(
+                            node.feature_id, "invalid_pattern_count",
+                            "Circular pattern requires pattern_count >= 1",
+                        ))
             status = "executable" if not blockers else ("unsupported" if any(b.code.startswith("unsupported") or b.code == "unknown_atomic" for b in blockers) else "blocked")
             results.append(CapabilityResult(node.feature_id, node.atomic_id, status, tuple(required), tuple(blockers)))
             if status == "executable":
@@ -436,7 +448,8 @@ class CapabilityAnalyzer:
                     body_available = True
         body_producers = {
             "extrude_add_blind", "extrude_add_two_sided", "extrude_cut_blind",
-            "revolve_add", "revolve_cut", "sphere_add", "thread_add",
+            "revolve_add", "revolve_cut", "sphere_add", "box_add", "cylinder_add",
+            "thread_add",
             # thread_cut 与 extrude_cut_blind/revolve_cut 一致：无宿主时由
             # active_body 前置阻止，文档含该类特征即视为携带可执行几何。
             "thread_cut",

backend/engine/cdsl_engine/cdsl_schema.json

@@ -117,6 +117,27 @@
       "required": ["radius_mm", "center_mm"],
       "additionalProperties": false
     },
+    "boxParams": {
+      "type": "object",
+      "properties": {
+        "length_mm": {"$ref": "#/$defs/positive"},
+        "width_mm": {"$ref": "#/$defs/positive"},
+        "height_mm": {"$ref": "#/$defs/positive"},
+        "center_mm": {"$ref": "#/$defs/point3"}
+      },
+      "required": ["length_mm", "width_mm", "height_mm", "center_mm"],
+      "additionalProperties": false
+    },
+    "cylinderParams": {
+      "type": "object",
+      "properties": {
+        "radius_mm": {"$ref": "#/$defs/positive"},
+        "height_mm": {"$ref": "#/$defs/positive"},
+        "axis": {"$ref": "#/$defs/axis"}
+      },
+      "required": ["radius_mm", "height_mm"],
+      "additionalProperties": false
+    },
     "threadAddParams": {
       "type": "object",
       "properties": {
@@ -242,6 +263,17 @@
       "required": ["source_feature_ids", "mirror_plane"],
       "additionalProperties": false
     },
+    "circularPatternParams": {
+      "type": "object",
+      "properties": {
+        "source_feature_ids": {"type": "array", "items": {"type": "string", "pattern": "^[A-Za-z0-9_-]{1,80}$"}},
+        "axis": {"$ref": "#/$defs/axis"},
+        "pattern_count": {"type": "integer", "minimum": 1},
+        "sweep_angle_deg": {"type": "number", "minimum": -360, "maximum": 360}
+      },
+      "required": ["source_feature_ids", "axis", "pattern_count"],
+      "additionalProperties": false
+    },
     "referencePlaneParams": {
       "type": "object",
       "properties": {
@@ -351,7 +383,7 @@
       "required": ["type", "contours"],
       "additionalProperties": false
     },
-    "feature_atomic_ids": {"enum": ["extrude_add_blind", "extrude_add_two_sided", "extrude_cut_blind", "revolve_add", "revolve_cut", "hole_blind", "hole_countersink", "hole_counterbore", "sphere_add", "thread_add", "thread_cut", "fillet", "chamfer", "pattern_linear", "pattern_mirror", "reference_plane", "reference_axis", "hole_wizard"]},
+    "feature_atomic_ids": {"enum": ["extrude_add_blind", "extrude_add_two_sided", "extrude_cut_blind", "revolve_add", "revolve_cut", "hole_blind", "hole_countersink", "hole_counterbore", "sphere_add", "box_add", "cylinder_add", "thread_add", "thread_cut", "fillet", "chamfer", "pattern_linear", "pattern_mirror", "pattern_circular", "reference_plane", "reference_axis", "hole_wizard"]},
     "feature": {
       "type": "object",
       "properties": {
@@ -374,6 +406,8 @@
         {"if": {"properties": {"atomic_id": {"const": "revolve_add"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/revolveParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "revolve_cut"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/revolveParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "sphere_add"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/sphereParams"}}}},
+        {"if": {"properties": {"atomic_id": {"const": "box_add"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/boxParams"}}}},
+        {"if": {"properties": {"atomic_id": {"const": "cylinder_add"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/cylinderParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "thread_add"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/threadAddParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "thread_cut"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/threadCutParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "hole_blind"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/holeBlindParams"}}}},
@@ -383,6 +417,7 @@
         {"if": {"properties": {"atomic_id": {"const": "chamfer"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/chamferParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "pattern_linear"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/linearPatternParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "pattern_mirror"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/mirrorPatternParams"}}}},
+        {"if": {"properties": {"atomic_id": {"const": "pattern_circular"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/circularPatternParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "reference_plane"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/referencePlaneParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "reference_axis"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/referenceAxisParams"}}}},
         {"if": {"properties": {"atomic_id": {"const": "hole_wizard"}}}, "then": {"properties": {"params": {"$ref": "#/$defs/holeWizardParams"}}}}

backend/engine/cdsl_engine/parametric_thread.py

@@ -110,11 +110,12 @@ def _build_z_aligned(spec: ThreadSpec) -> Solid:
     # material; the crest centre sits at the helix start phase (z = 0), which
     # also puts the z = 0 end face through full crest material after trimming.
     helix_height = spec.length_mm + 2.0 * pitch
-    helix = Edge.make_helix(
-        pitch=pitch,
-        height=helix_height,
-        radius=root_radius,
-        lefthand=spec.lefthand,
+    # 复用 adapter 门面构造螺旋路径与扫掠。函数级延迟导入：build123d_adapter 顶部
+    # 已 import build_thread_solid，模块级反向 import adapter 会形成循环依赖。
+    from .build123d_adapter import Build123dGeometryAdapter
+
+    helix = Build123dGeometryAdapter.helix_path(
+        root_radius, pitch, height_mm=helix_height, lefthand=spec.lefthand,
     )
 
     # Profile vertices (z, r) -> world (x = r, y = 0, z).  Order is counter
@@ -130,7 +131,7 @@ def _build_z_aligned(spec: ThreadSpec) -> Solid:
     ]
     wire = Wire([Edge.make_line(pts[index], pts[(index + 1) % len(pts)]) for index in range(len(pts))])
     wire = _apply_profile_fillets(wire, spec, crest_radius, sunk_root, pitch, crest_half_width)
-    ribbon = Solid.sweep(section=Face(wire), path=helix, make_solid=True, is_frenet=True)
+    ribbon = Build123dGeometryAdapter.sweep(Face(wire), helix, make_solid=True, is_frenet=True)
 
     # Core cylinder at the nominal minor radius spanning the whole helix.
     # (The sunken tooth roots overlap it so the union below is clean.)

backend/engine/cdsl_engine/profile_schema.json

@@ -15,6 +15,8 @@
     "hole_countersink": {"atomic_id":"hole_countersink","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"required"},"author_params_schema":{"type":"object","properties":{"diameter_mm":{"type":"number","exclusiveMinimum":0},"depth_mm":{"type":"number","exclusiveMinimum":0},"positions":{"type":"array","minItems":1,"maxItems":64,"items":{"type":"object","properties":{"mm":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3}},"required":["mm"],"additionalProperties":false}},"countersink_diameter_mm":{"type":"number","exclusiveMinimum":0},"countersink_angle_rad":{"type":"number","exclusiveMinimum":0,"maximum":3.141592653589793},"drill_angle_rad":{"type":"number","exclusiveMinimum":0,"maximum":3.141592653589793}},"required":["diameter_mm","depth_mm","positions","countersink_diameter_mm","countersink_angle_rad"],"additionalProperties":false},"selector_policy":{"slot":"params.host_face","token_kind":"face","min_items":1,"max_items":1,"snapshot_bound":true},"server_injected_paths":["params.host_face"],"reference_policy":{"mode":"none"},"semantic_preflight":["host_face_exists","hole_positions_on_host_plane","cut_exit_distance"],"candidate_verifiers":["cylindrical_bore"]},
     "hole_counterbore": {"atomic_id":"hole_counterbore","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"required"},"author_params_schema":{"type":"object","properties":{"diameter_mm":{"type":"number","exclusiveMinimum":0},"depth_mm":{"type":"number","exclusiveMinimum":0},"positions":{"type":"array","minItems":1,"maxItems":64,"items":{"type":"object","properties":{"mm":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3}},"required":["mm"],"additionalProperties":false}},"counterbore_diameter_mm":{"type":"number","exclusiveMinimum":0},"counterbore_depth_mm":{"type":"number","exclusiveMinimum":0},"drill_angle_rad":{"type":"number","exclusiveMinimum":0,"maximum":3.141592653589793}},"required":["diameter_mm","depth_mm","positions","counterbore_diameter_mm","counterbore_depth_mm"],"additionalProperties":false},"selector_policy":{"slot":"params.host_face","token_kind":"face","min_items":1,"max_items":1,"snapshot_bound":true},"server_injected_paths":["params.host_face"],"reference_policy":{"mode":"none"},"semantic_preflight":["host_face_exists","hole_positions_on_host_plane","cut_exit_distance"],"candidate_verifiers":["cylindrical_bore"]},
     "sphere_add": {"atomic_id":"sphere_add","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"forbidden"},"author_params_schema":{"type":"object","properties":{"radius_mm":{"type":"number","exclusiveMinimum":0},"center_mm":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3}},"required":["radius_mm","center_mm"],"additionalProperties":false},"selector_policy":{"slot":null,"token_kind":null,"min_items":0,"max_items":0,"snapshot_bound":false},"server_injected_paths":[],"reference_policy":{"mode":"none"},"semantic_preflight":[],"candidate_verifiers":["single_connected_body"]},
+    "box_add": {"atomic_id":"box_add","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"forbidden"},"author_params_schema":{"type":"object","properties":{"length_mm":{"type":"number","exclusiveMinimum":0},"width_mm":{"type":"number","exclusiveMinimum":0},"height_mm":{"type":"number","exclusiveMinimum":0},"center_mm":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3}},"required":["length_mm","width_mm","height_mm","center_mm"],"additionalProperties":false},"selector_policy":{"slot":null,"token_kind":null,"min_items":0,"max_items":0,"snapshot_bound":false},"server_injected_paths":[],"reference_policy":{"mode":"none"},"semantic_preflight":[],"candidate_verifiers":["single_connected_body"]},
+    "cylinder_add": {"atomic_id":"cylinder_add","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"forbidden"},"author_params_schema":{"type":"object","properties":{"radius_mm":{"type":"number","exclusiveMinimum":0},"height_mm":{"type":"number","exclusiveMinimum":0},"axis":{"type":"object","properties":{"origin_mm":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3},"direction":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3}},"required":["origin_mm","direction"],"additionalProperties":false}},"required":["radius_mm","height_mm"],"additionalProperties":false},"selector_policy":{"slot":null,"token_kind":null,"min_items":0,"max_items":0,"snapshot_bound":false},"server_injected_paths":[],"reference_policy":{"mode":"none"},"semantic_preflight":[],"candidate_verifiers":["single_connected_body"]},
     "thread_add": {"atomic_id":"thread_add","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"forbidden"},"author_params_schema":{"type":"object","properties":{"major_diameter_mm":{"type":"number","exclusiveMinimum":0},"minor_diameter_mm":{"type":"number","exclusiveMinimum":0},"pitch_mm":{"type":"number","exclusiveMinimum":0},"length_mm":{"type":"number","exclusiveMinimum":0},"axis":{"type":"object","properties":{"origin_mm":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3},"direction":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3}},"required":["origin_mm","direction"],"additionalProperties":false},"angle_deg":{"type":"number","exclusiveMinimum":0,"exclusiveMaximum":180},"lefthand":{"type":"boolean"},"relief_length_mm":{"type":"number","minimum":0},"crest_radius_mm":{"type":"number","minimum":0},"root_radius_mm":{"type":"number","minimum":0}},"required":["major_diameter_mm","minor_diameter_mm","pitch_mm","length_mm","axis"],"additionalProperties":false},"selector_policy":{"slot":null,"token_kind":null,"min_items":0,"max_items":0,"snapshot_bound":false},"server_injected_paths":[],"reference_policy":{"mode":"none"},"semantic_preflight":[],"candidate_verifiers":["single_connected_body"]},
     "thread_cut": {"atomic_id":"thread_cut","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"forbidden"},"author_params_schema":{"type":"object","properties":{"major_diameter_mm":{"type":"number","exclusiveMinimum":0},"minor_diameter_mm":{"type":"number","exclusiveMinimum":0},"pitch_mm":{"type":"number","exclusiveMinimum":0},"length_mm":{"type":"number","exclusiveMinimum":0},"axis":{"type":"object","properties":{"origin_mm":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3},"direction":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3}},"required":["origin_mm","direction"],"additionalProperties":false},"angle_deg":{"type":"number","exclusiveMinimum":0,"exclusiveMaximum":180},"lefthand":{"type":"boolean"},"crest_radius_mm":{"type":"number","minimum":0},"root_radius_mm":{"type":"number","minimum":0}},"required":["major_diameter_mm","minor_diameter_mm","pitch_mm","length_mm","axis"],"additionalProperties":false},"selector_policy":{"slot":null,"token_kind":null,"min_items":0,"max_items":0,"snapshot_bound":false},"server_injected_paths":[],"reference_policy":{"mode":"none"},"semantic_preflight":["requires_active_solid"],"candidate_verifiers":["single_connected_body","volume_decreased"]},
     "reference_plane": {"atomic_id":"reference_plane","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"forbidden"},"author_params_schema":{"type":"object","properties":{"plane":{"type":"object","properties":{"origin_mm":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3},"x_dir":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3},"normal":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3}},"required":["origin_mm","x_dir","normal"],"additionalProperties":false}},"required":["plane"],"additionalProperties":false},"selector_policy":{"slot":null,"token_kind":null,"min_items":0,"max_items":0,"snapshot_bound":false},"server_injected_paths":[],"reference_policy":{"mode":"none"},"semantic_preflight":["requires_active_solid","reference_plane_nonzero_normal"],"candidate_verifiers":[]},
@@ -52,7 +54,8 @@
     "fillet": {"atomic_id":"fillet","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"required"},"author_params_schema":{"type":"object","properties":{"radius_mm":{"type":"number","exclusiveMinimum":0},"tangent_propagation":{"type":"boolean"}},"required":["radius_mm"],"additionalProperties":false},"selector_policy":{"slot":"feature.selectors","token_kind":"edge","min_items":1,"max_items":64,"snapshot_bound":true},"server_injected_paths":["feature.selectors"],"reference_policy":{"mode":"none"},"semantic_preflight":["selected_edges_exist"],"candidate_verifiers":["single_connected_body"]},
     "chamfer": {"atomic_id":"chamfer","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"required"},"author_params_schema":{"type":"object","properties":{"distance_mm":{"type":"number","exclusiveMinimum":0},"distance_2_mm":{"type":"number","exclusiveMinimum":0},"angle_rad":{"type":"number","exclusiveMinimum":0,"maximum":3.141592653589793}},"required":["distance_mm"],"additionalProperties":false},"selector_policy":{"slot":"feature.selectors","token_kind":"edge","min_items":1,"max_items":64,"snapshot_bound":true},"server_injected_paths":["feature.selectors"],"reference_policy":{"mode":"none"},"semantic_preflight":["selected_edges_exist"],"candidate_verifiers":["single_connected_body"]},
     "pattern_linear": {"atomic_id":"pattern_linear","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"forbidden"},"author_params_schema":{"type":"object","properties":{"source_feature_ids":{"type":"array","items":{"type":"string","pattern":"^[a-z][a-z0-9_:-]{0,95}$"},"minItems":1,"maxItems":16,"uniqueItems":true},"direction_1":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3},"spacing_1_mm":{"type":"number","exclusiveMinimum":0},"pattern_count_1":{"type":"integer","minimum":1,"maximum":128},"direction_2":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3},"spacing_2_mm":{"type":"number","exclusiveMinimum":0},"pattern_count_2":{"type":"integer","minimum":1,"maximum":128}},"required":["source_feature_ids","direction_1","spacing_1_mm","pattern_count_1"],"additionalProperties":false},"selector_policy":{"slot":null,"token_kind":null,"min_items":0,"max_items":0,"snapshot_bound":false},"server_injected_paths":[],"reference_policy":{"mode":"snapshot_bound","slot":"params.source_feature_ids","token_kind":"feature","min_items":1,"max_items":16,"snapshot_bound":true},"semantic_preflight":["source_features_exist"],"candidate_verifiers":[]},
-    "pattern_mirror": {"atomic_id":"pattern_mirror","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"required"},"author_params_schema":{"type":"object","properties":{"source_feature_ids":{"type":"array","items":{"type":"string","pattern":"^[a-z][a-z0-9_:-]{0,95}$"},"minItems":1,"maxItems":16,"uniqueItems":true}},"required":["source_feature_ids"],"additionalProperties":false},"selector_policy":{"slot":"params.mirror_plane","token_kind":"plane","min_items":1,"max_items":1,"snapshot_bound":true},"server_injected_paths":["params.mirror_plane"],"reference_policy":{"mode":"snapshot_bound","slot":"params.source_feature_ids","token_kind":"feature","min_items":1,"max_items":16,"snapshot_bound":true},"semantic_preflight":["source_features_exist","mirror_plane_exists"],"candidate_verifiers":[]}
+    "pattern_mirror": {"atomic_id":"pattern_mirror","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"required"},"author_params_schema":{"type":"object","properties":{"source_feature_ids":{"type":"array","items":{"type":"string","pattern":"^[a-z][a-z0-9_:-]{0,95}$"},"minItems":1,"maxItems":16,"uniqueItems":true}},"required":["source_feature_ids"],"additionalProperties":false},"selector_policy":{"slot":"params.mirror_plane","token_kind":"plane","min_items":1,"max_items":1,"snapshot_bound":true},"server_injected_paths":["params.mirror_plane"],"reference_policy":{"mode":"snapshot_bound","slot":"params.source_feature_ids","token_kind":"feature","min_items":1,"max_items":16,"snapshot_bound":true},"semantic_preflight":["source_features_exist","mirror_plane_exists"],"candidate_verifiers":[]},
+    "pattern_circular": {"atomic_id":"pattern_circular","contract_version":"3.0","fragment_shape":{"sketch":"forbidden","params":"required_object","selector_tokens":"forbidden"},"author_params_schema":{"type":"object","properties":{"source_feature_ids":{"type":"array","items":{"type":"string","pattern":"^[a-z][a-z0-9_:-]{0,95}$"},"minItems":1,"maxItems":16,"uniqueItems":true},"axis":{"type":"object","properties":{"origin_mm":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3},"direction":{"type":"array","items":{"type":"number"},"minItems":3,"maxItems":3}},"required":["origin_mm","direction"],"additionalProperties":false},"pattern_count":{"type":"integer","minimum":1,"maximum":128},"sweep_angle_deg":{"type":"number","minimum":-360,"maximum":360}},"required":["source_feature_ids","axis","pattern_count"],"additionalProperties":false},"selector_policy":{"slot":null,"token_kind":null,"min_items":0,"max_items":0,"snapshot_bound":false},"server_injected_paths":[],"reference_policy":{"mode":"snapshot_bound","slot":"params.source_feature_ids","token_kind":"feature","min_items":1,"max_items":16,"snapshot_bound":true},"semantic_preflight":["source_features_exist"],"candidate_verifiers":[]}
   },
   "profiles": {
     "circle": {

backend/engine/cdsl_engine/runtime.py

@@ -22,8 +22,10 @@ from .sketch_solver import CORE_SHAPE_GENERATORS, resolve_required_sketches
 ALL_ATOMIC_IDS = frozenset({
     "extrude_add_blind", "extrude_add_two_sided", "extrude_cut_blind",
     "revolve_add", "revolve_cut", "hole_blind", "hole_countersink",
-    "hole_counterbore", "sphere_add", "reference_plane", "reference_axis",
+    "hole_counterbore", "sphere_add", "box_add", "cylinder_add",
+    "reference_plane", "reference_axis",
     "hole_wizard", "fillet", "chamfer", "pattern_linear", "pattern_mirror",
+    "pattern_circular",
     "thread_add", "thread_cut",
 })
 
@@ -513,6 +515,56 @@ def _execute_sphere(node: FeaturePlanNode, session: ExecutionSession) -> Feature
     return session.result(node)
 
 
+def _execute_box(node: FeaturePlanNode, session: ExecutionSession) -> FeatureResult:
+    # 长方体特征（box_add）执行入口：以几何中心 center_mm 与三向尺寸生成原生长方体。
+    # 1. 解析并校验尺寸与中心，非法输入抛出带具体原因的 ValueError。
+    try:
+        length = float(node.params.get("length_mm") or 0.0)
+        width = float(node.params.get("width_mm") or 0.0)
+        height = float(node.params.get("height_mm") or 0.0)
+        center = node.params.get("center_mm") or []
+    except (TypeError, ValueError) as error:
+        raise ValueError("box dimensions must be numeric") from error
+    if length <= 0 or width <= 0 or height <= 0 or len(center) != 3:
+        raise ValueError("box_add requires positive length_mm/width_mm/height_mm and a three-dimensional center_mm")
+    # 2. 生成世界轴对齐的 plane frame：plane 原点是长方体的最小角点（中心减去半
+    #    尺寸），长/宽/高分别沿世界 x/y/z 生长（build123d Solid.make_box 语义）。
+    corner = (
+        float(center[0]) - length / 2,
+        float(center[1]) - width / 2,
+        float(center[2]) - height / 2,
+    )
+    plane = PlaneSpec.from_mapping({"origin_mm": corner, "x_dir": [1, 0, 0], "normal": [0, 0, 1]})
+    solid = session.adapter.box(length, width, height, plane)
+    # 3. 与当前主体做布尔并后登记为新主体，并返回该特征的结果对象。
+    session.register_body(node.feature_id, session.adapter.fuse(session.body, solid), replay_node=node)
+    return session.result(node)
+
+
+def _execute_cylinder(node: FeaturePlanNode, session: ExecutionSession) -> FeatureResult:
+    # 圆柱特征（cylinder_add）执行入口：axis 的原点是底面圆心、方向为轴向；
+    # axis 缺省为世界 +Z 过原点（底面圆心落在 (0,0,0)）。
+    # 1. 解析并校验半径与高度，非法输入抛出带具体原因的 ValueError。
+    try:
+        radius = float(node.params.get("radius_mm") or 0.0)
+        height = float(node.params.get("height_mm") or 0.0)
+    except (TypeError, ValueError) as error:
+        raise ValueError("cylinder dimensions must be numeric") from error
+    if radius <= 0 or height <= 0:
+        raise ValueError("cylinder_add requires positive radius_mm and height_mm")
+    raw_axis = node.params.get("axis")
+    if raw_axis is not None and not (
+        isinstance(raw_axis, dict) and raw_axis.get("origin_mm") is not None and raw_axis.get("direction") is not None
+    ):
+        raise ValueError("cylinder_add axis must define origin_mm and direction")
+    axis = AxisSpec.from_mapping(raw_axis) if isinstance(raw_axis, dict) else None
+    # 2. 由适配器创建原生圆柱（axis=None 即世界 +Z 过原点）。
+    solid = session.adapter.cylinder(radius, height, axis)
+    # 3. 与当前主体做布尔并后登记为新主体，并返回该特征的结果对象。
+    session.register_body(node.feature_id, session.adapter.fuse(session.body, solid), replay_node=node)
+    return session.result(node)
+
+
 def _execute_thread(node: FeaturePlanNode, session: ExecutionSession) -> FeatureResult:
     # 螺纹特征（thread_add）执行入口：按规格生成参数化螺纹段并并入当前主体。
     # 1. 解析并校验尺寸/牙距/轴，非法输入抛出带具体原因的 ValueError。
@@ -754,6 +806,11 @@ def _translated_node(node: FeaturePlanNode, instance_id: str, offset: Vector3, s
     axis = params.get("axis") or {}
     if axis.get("origin_mm"):
         axis["origin_mm"] = [float(axis["origin_mm"][index]) + components[index] for index in range(3)]
+    center = params.get("center_mm")
+    if center:
+        # box_add/sphere_add 以世界坐标几何中心定位；平移重放必须随实例移动该中心，
+        # 否则阵列副本会静默重合在原位置。
+        params["center_mm"] = [float(center[index]) + components[index] for index in range(3)]
     mirror_plane = params.get("mirror_plane")
     if isinstance(mirror_plane, dict) and node.atomic_id == "pattern_mirror":
         # #6 pattern 引用重解析：镜像面是 reference_plane 引用，随实例平移
@@ -930,6 +987,12 @@ def _mirrored_node(node: FeaturePlanNode, instance_id: str, plane: PlaneSpec, se
         axis["origin_mm"] = _reflect_point(axis["origin_mm"], plane)
     if axis.get("direction"):
         axis["direction"] = _reflect_point(axis["direction"], plane, vector=True)
+    center = params.get("center_mm")
+    if isinstance(center, list) and len(center) == 3:
+        # box_add/sphere_add 以世界坐标几何中心定位：反射该中心即可。box_add 固定
+        # 世界轴对齐，跨坐标平面镜像后仍保持朝向（斜镜像面在 _execute_mirror_pattern
+        # 中已被显式拒绝）。
+        params["center_mm"] = _reflect_point(center, plane)
     mirror_plane = params.get("mirror_plane")
     if isinstance(mirror_plane, dict) and node.atomic_id == "pattern_mirror":
         # #6 pattern 引用重解析：镜像重放 mirror source 时，其镜像面引用
@@ -971,6 +1034,15 @@ def _mirrored_node(node: FeaturePlanNode, instance_id: str, plane: PlaneSpec, se
     return FeaturePlanNode(instance_id, node.atomic_id, node.name, (), params, node.selectors, node.sketch_id, node.declared_status, node.source_feature)
 
 
+def _normal_is_coordinate_axis(normal: Any) -> bool:
+    # 判断单位法向是否平行于任一世界坐标轴：跨这样的平面镜像会保持轴对齐朝向。
+    return (
+        isinstance(normal, (list, tuple))
+        and len(normal) == 3
+        and any(abs(float(normal[index])) > 1 - 1e-9 for index in range(3))
+    )
+
+
 def _execute_mirror_pattern(node: FeaturePlanNode, session: ExecutionSession) -> FeatureResult:
     mirror = node.params.get("mirror_plane") or {}
     resolution = session.resolve(mirror)
@@ -983,6 +1055,11 @@ def _execute_mirror_pattern(node: FeaturePlanNode, session: ExecutionSession) ->
         dependency = pattern_transform_blocker(source)
         if dependency:
             raise ValueError(f"mirror pattern source uses an unsupported {dependency}")
+        if source.atomic_id == "box_add" and not _normal_is_coordinate_axis(resolution.record.value.normal):
+            # box_add 是固定世界轴对齐的原生图元：跨非坐标平面镜像会产生倾斜朝向，
+            # 当前参数语义无法表达，静默重放会得到错误几何 → 明确拒绝。跨坐标平面
+            # （法向平行于任一坐标轴）的镜像仍然精确。
+            raise ValueError("box_add mirror is exact only across coordinate-aligned mirror planes")
         cloned = _mirrored_node(source, f"{node.feature_id}.m.{source.feature_id}", resolution.record.value, session)
         sketch = session.sketches.get(str(source.sketch_id))
         _execute_node(cloned, session, _mirrored_sketch(sketch, resolution.record.value) if sketch else None)
@@ -990,6 +1067,200 @@ def _execute_mirror_pattern(node: FeaturePlanNode, session: ExecutionSession) ->
     return session.result(node)
 
 
+def _coordinate_axis_direction(direction: Any) -> bool:
+    # 判断方向是否平行于任一世界坐标轴（circular 的 box 限制用）。
+    # 不依赖输入已是单位向量：非零向量至多一个分量非零即为坐标轴方向
+    # （_box_circular_is_exact 对任意长度/含小残差的 direction 都稳健）。
+    if not isinstance(direction, (list, tuple)) or len(direction) != 3:
+        return False
+    return sum(1 for component in direction if abs(float(component)) > 1e-9) == 1
+
+
+def _rotated_vector(value: Vector3, axis: AxisSpec, angle_rad: float) -> Vector3:
+    # Rodrigues 旋转公式：绕单位轴 axis.direction 旋转向量（无平移项）。
+    cosine = math.cos(angle_rad)
+    sine = math.sin(angle_rad)
+    axis_direction = axis.direction
+    cross = vector_cross(axis_direction, value)
+    dot = vector_dot(axis_direction, value)
+    return tuple(  # type: ignore[return-value]
+        value[index] * cosine + cross[index] * sine + axis_direction[index] * dot * (1.0 - cosine)
+        for index in range(3)
+    )
+
+
+def _rotated_point(point: Any, axis: AxisSpec, angle_rad: float) -> list[float]:
+    # 绕轴旋转三维点：先平移到轴原点、旋转向量、再平移回。
+    value = tuple(float(component) for component in point)
+    relative = vector_subtract(value, axis.origin_mm)
+    rotated = _rotated_vector(relative, axis, angle_rad)
+    return [axis.origin_mm[index] + rotated[index] for index in range(3)]
+
+
+def _rotated_sketch(sketch: dict[str, Any], axis: AxisSpec, angle_rad: float) -> dict[str, Any]:
+    # 环形阵列实例的草图：工作平面 frame（原点为点、x/y/normal 为向量）绕轴旋转；
+    # 2D 局部实体坐标不动（frame 旋转后由草图求解器映射到新世界位置）。与
+    # _translated_sketch 对"世界坐标轮廓点"的处理对称，这里把 start/end/center
+    # 世界坐标点绕轴旋转。
+    output = deepcopy(sketch)
+    workplane = output.get("workplane") or {}
+    if workplane.get("origin_mm"):
+        workplane["origin_mm"] = _rotated_point(workplane["origin_mm"], axis, angle_rad)
+    for key in ("x_dir", "y_dir", "normal"):
+        if workplane.get(key):
+            workplane[key] = list(_rotated_vector(tuple(float(v) for v in workplane[key]), axis, angle_rad))
+    output["workplane"] = workplane
+
+    def rotate(value: Any) -> None:
+        if isinstance(value, dict):
+            for point_key in ("start_mm", "end_mm", "center_mm"):
+                if point_key in value:
+                    value[point_key] = _rotated_point(value[point_key], axis, angle_rad)
+            for child in value.values():
+                rotate(child)
+        elif isinstance(value, list):
+            for child in value:
+                rotate(child)
+
+    for key in ("contour_edges_mm", "contour_regions_mm"):
+        rotate(output.get(key))
+    return output
+
+
+def _rotated_node(node: FeaturePlanNode, instance_id: str, axis: AxisSpec, angle_rad: float, session: ExecutionSession) -> FeaturePlanNode:
+    # 环形阵列实例节点：把源特征的全部绝对坐标参数绕 axis 旋转（参数键布局与
+    # _translated_node/_mirrored_node 一致）。workplane/宿主 frame 的轴方向旋转，
+    # 世界坐标点旋转；局部 positions（随宿主 frame）不动。特征自带 axis（圆柱轴/
+    # 旋转轴/嵌套 circular 轴）与几何中心 center_mm 随实例旋转。嵌套 pattern
+    # source（pattern_mirror/pattern_circular）带绝对引用：镜像面 frame / 内层
+    # 源需连同本实例一起旋转，否则重放会退化成与源重合的错误几何。
+    params = deepcopy(node.params)
+    plane = params.get("plane")
+    if isinstance(plane, dict):
+        for key in ("origin_mm", "x_dir", "y_dir", "normal"):
+            if plane.get(key):
+                if key == "origin_mm":
+                    plane[key] = _rotated_point(plane[key], axis, angle_rad)
+                else:
+                    plane[key] = list(_rotated_vector(tuple(float(v) for v in plane[key]), axis, angle_rad))
+    host = params.get("host_face")
+    host_frame = host.get("frame") if isinstance(host, dict) else None
+    positions_are_local = isinstance(host_frame, dict) and all(
+        host_frame.get(key) is not None for key in ("origin_mm", "x_dir", "normal")
+    )
+    if positions_are_local:
+        if host_frame.get("origin_mm"):
+            host_frame["origin_mm"] = _rotated_point(host_frame["origin_mm"], axis, angle_rad)
+        for key in ("x_dir", "normal"):
+            if host_frame.get(key):
+                host_frame[key] = list(_rotated_vector(tuple(float(v) for v in host_frame[key]), axis, angle_rad))
+    else:
+        for position in params.get("positions") or []:
+            if position.get("mm"):
+                position["mm"] = _rotated_point(position["mm"], axis, angle_rad)
+    feature_axis = params.get("axis")
+    if isinstance(feature_axis, dict):
+        if feature_axis.get("origin_mm"):
+            feature_axis["origin_mm"] = _rotated_point(feature_axis["origin_mm"], axis, angle_rad)
+        if feature_axis.get("direction"):
+            feature_axis["direction"] = list(_rotated_vector(tuple(float(v) for v in feature_axis["direction"]), axis, angle_rad))
+    center = params.get("center_mm")
+    if isinstance(center, list) and len(center) == 3:
+        params["center_mm"] = _rotated_point(center, axis, angle_rad)
+    if node.atomic_id in {"pattern_mirror", "pattern_circular"}:
+        # pattern 引用旋转重解析：镜像面 / 内层源随本实例一起旋转，否则嵌套
+        # pattern 作为 circular source 时重放会退化成错误几何（见 _translated_node）。
+        if node.atomic_id == "pattern_mirror":
+            mirror_plane = params.get("mirror_plane")
+            if not isinstance(mirror_plane, dict):
+                raise ValueError("mirror pattern replayed by circular pattern has no mirror plane reference")
+            frame = _owner_plane_frame(session, mirror_plane)
+            if frame is None:
+                raise ValueError("mirror plane reference cannot be transformed for circular pattern replay")
+            cloned_selector = deepcopy(mirror_plane)
+            cloned_selector["frame"] = {
+                "origin_mm": _rotated_point(frame["origin_mm"], axis, angle_rad),
+                "x_dir": list(_rotated_vector(tuple(frame["x_dir"]), axis, angle_rad)),
+                "normal": list(_rotated_vector(tuple(frame["normal"]), axis, angle_rad)),
+            }
+            params["mirror_plane"] = cloned_selector
+        transformed_ids: list[str] = []
+        for source_id in node.params.get("source_feature_ids") or []:
+            source_node = session.replay_definitions.get(str(source_id))
+            if source_node is None:
+                raise ValueError(f"pattern source feature {source_id} has no replay definition")
+            temp_id = f"{instance_id}.src.{source_id}"
+            shifted = _rotated_node(source_node, temp_id, axis, angle_rad, session)
+            if shifted.sketch_id:
+                source_sketch = session.sketches.get(str(source_node.sketch_id))
+                if source_sketch is not None:
+                    temp_sketch_id = f"{temp_id}.sk"
+                    session.sketches[temp_sketch_id] = _rotated_sketch(source_sketch, axis, angle_rad)
+                    shifted = FeaturePlanNode(
+                        shifted.feature_id, shifted.atomic_id, shifted.name, shifted.depends_on,
+                        shifted.params, shifted.selectors, temp_sketch_id,
+                        shifted.declared_status, shifted.source_feature,
+                    )
+            # 临时 replay 定义同样进入 nodes 表（replay_sources 以此过滤）。
+            session.nodes[temp_id] = shifted
+            session.replay_definitions[temp_id] = shifted
+            transformed_ids.append(temp_id)
+        params["source_feature_ids"] = transformed_ids
+    return FeaturePlanNode(instance_id, node.atomic_id, node.name, (), params, node.selectors, node.sketch_id, node.declared_status, node.source_feature)
+
+
+def _execute_circular_pattern(node: FeaturePlanNode, session: ExecutionSession, execute: Callable[[FeaturePlanNode, ExecutionSession, dict[str, Any] | None], FeatureResult]) -> FeatureResult:
+    # 环形阵列特征（pattern_circular）执行入口：绕显式轴按数量与包角重放源特征
+    # 形成环形阵列。源特征整体绕轴旋转（绝对坐标变换），非复制当前主体的近似。
+    params = node.params
+    raw_axis = params.get("axis")
+    if not (isinstance(raw_axis, dict) and raw_axis.get("origin_mm") is not None and raw_axis.get("direction") is not None):
+        raise ValueError("circular pattern requires an explicit axis with origin_mm and direction")
+    axis = AxisSpec.from_mapping(raw_axis)
+    count = int(params.get("pattern_count") or 1)
+    if count < 1:
+        raise ValueError("circular pattern pattern_count must be >= 1")
+    sweep_angle_deg = float(params.get("sweep_angle_deg") or 360.0)
+    sources = session.replay_sources(params.get("source_feature_ids") or [])
+    if not sources:
+        raise ValueError("circular pattern source features have no replay definitions")
+    for instance in range(1, count):
+        # 实例 i 位于包角 sweep_angle_deg 的 i/count 处（i=0 即源特征本身）。
+        angle_deg = sweep_angle_deg * instance / count
+        angle_rad = math.radians(angle_deg)
+        for source in sources:
+            dependency = pattern_transform_blocker(source)
+            if dependency:
+                raise ValueError(f"circular pattern source uses an unsupported {dependency}")
+            if source.atomic_id == "box_add" and not _box_circular_is_exact(axis, angle_rad):
+                raise ValueError(
+                    "box_add circular pattern is exact only for coordinate-axis rotation "
+                    "by multiples of 180 degrees"
+                )
+            cloned = _rotated_node(source, f"{node.feature_id}.c{instance}.{source.feature_id}", axis, angle_rad, session)
+            sketch = session.sketches.get(str(source.sketch_id))
+            execute(cloned, session, _rotated_sketch(sketch, axis, angle_rad) if sketch else None)
+    # 记录本阵列的 replay 定义：后续阵列若选中本阵列，按定义递归重放。
+    session.replay_definitions[node.feature_id] = node
+    return session.result(node)
+
+
+def _box_circular_is_exact(axis: AxisSpec, angle_rad: float) -> bool:
+    # box_add 是固定世界轴对齐的原生图元：绕轴旋转任意角度会使其棱偏离坐标轴，
+    # 当前参数语义无法表达 → 仅坐标轴旋转且每份转角为 180° 的整数倍时精确
+    # （180° 翻转把轴对齐 box 映射回轴对齐 box）。与 _execute_mirror_pattern 的
+    # box 坐标平面限制同思路：宁可显式拒绝，也不静默产出错误几何。
+    if not _coordinate_axis_direction(axis.direction):
+        return False
+    half_turns = abs(math.degrees(angle_rad)) / 180.0
+    return abs(half_turns - round(half_turns)) < 1e-9
+
+
+def _circular_pattern_executor(node: FeaturePlanNode, session: ExecutionSession, sketch: dict[str, Any] | None) -> FeatureResult:
+    del sketch
+    return _execute_circular_pattern(node, session, _execute_node)
+
+
 def _execute_node(node: FeaturePlanNode, session: ExecutionSession, sketch_override: dict[str, Any] | None = None) -> FeatureResult:
     executor = EXECUTORS.get(node.atomic_id)
     if executor is None:
@@ -1024,6 +1295,16 @@ def _sphere_executor(node: FeaturePlanNode, session: ExecutionSession, sketch: d
     return _execute_sphere(node, session)
 
 
+def _box_executor(node: FeaturePlanNode, session: ExecutionSession, sketch: dict[str, Any] | None) -> FeatureResult:
+    del sketch
+    return _execute_box(node, session)
+
+
+def _cylinder_executor(node: FeaturePlanNode, session: ExecutionSession, sketch: dict[str, Any] | None) -> FeatureResult:
+    del sketch
+    return _execute_cylinder(node, session)
+
+
 def _hole_executor(node: FeaturePlanNode, session: ExecutionSession, sketch: dict[str, Any] | None) -> FeatureResult:
     del sketch
     return _execute_hole(node, session)
@@ -1058,6 +1339,8 @@ EXECUTORS: dict[str, ExecutorFunction] = {
     "reference_plane": _reference_plane_executor,
     "reference_axis": _reference_axis_executor,
     "sphere_add": _sphere_executor,
+    "box_add": _box_executor,
+    "cylinder_add": _cylinder_executor,
     "thread_add": _thread_executor,
     "thread_cut": _thread_executor,
     "extrude_add_blind": _primary_executor,
@@ -1073,6 +1356,7 @@ EXECUTORS: dict[str, ExecutorFunction] = {
     "chamfer": _chamfer_executor,
     "pattern_linear": _linear_pattern_executor,
     "pattern_mirror": _mirror_pattern_executor,
+    "pattern_circular": _circular_pattern_executor,
 }
 
 

backend/tests/test_engine_circular_pattern_geometry.py

@@ -0,0 +1,166 @@
+"""N2 pattern_circular —— 旋转几何契约层测试。
+
+中文说明
+--------
+统计报告把 N2（直线/环形阵列）归为 A 类；runtime 的 pattern 采用源特征
+重放范式（pattern_linear/_translated_node、pattern_mirror/_mirrored_node），
+本次为 pattern_circular 补齐了缺失的"环形重放实现入口"：旋转重放节点
+（_rotated_node）与 Rodrigues 旋转辅助（_rotated_vector/_rotated_point）。
+
+本文件是三个测试角度中的**几何单元层**：只验证旋转数学与草图/参数变换
+函数的正确性，不驱动 executor、不跑布尔运算。旋转是环形阵列几何正确性
+的全部基础——若绕轴旋转的坐标变换有误，任何 count/包角组合都会产出错误
+实例位置。runtime 端到端层见 test_engine_circular_pattern_runtime.py。
+
+契约要点（与 runtime 层的分工）：
+    1. Rodrigues 旋转是等距变换：轴向分量守恒、长度/到轴距离不变、
+       非轴向按 cos/sin 旋转 → 用 90°/180° 与随机向量精确断言坐标。
+    2. 方向约定：绕轴 direction 正角度为右手逆时针（+Z 轴把 +X 转到 +Y）。
+    3. _rotated_sketch 只旋转世界坐标（workplane frame 与 start/end/center_mm），
+       2D 局部实体坐标不动（frame 旋转后由草图求解器映射到新世界位置）。
+    4. _box_circular_is_exact：box_add 是固定世界轴对齐图元，仅坐标轴旋转
+       且每份转角为 180° 整数倍时才精确（对齐 _execute_mirror_pattern 的
+       box 坐标平面限制思路）。
+
+sys.path 说明：把 backend 与 backend/engine 加入搜索路径，直接 import
+cdsl_engine 包内模块直测 adapter（与既有测试风格一致）。
+"""
+
+from __future__ import annotations
+
+import math
+import sys
+import unittest
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(ROOT / "backend"))
+sys.path.insert(0, str(ROOT / "backend" / "engine"))
+
+from cdsl_engine.runtime import (  # noqa: E402
+    _box_circular_is_exact,
+    _coordinate_axis_direction,
+    _rotated_point,
+    _rotated_sketch,
+    _rotated_vector,
+)
+from cdsl_engine.runtime_types import AxisSpec  # noqa: E402
+
+
+X_AXIS = AxisSpec(origin_mm=(0.0, 0.0, 0.0), direction=(1.0, 0.0, 0.0))
+Y_AXIS = AxisSpec(origin_mm=(0.0, 0.0, 0.0), direction=(0.0, 1.0, 0.0))
+Z_AXIS = AxisSpec(origin_mm=(0.0, 0.0, 0.0), direction=(0.0, 0.0, 1.0))
+# Rodrigues 要求单位轴（运行时 AxisSpec.from_mapping 会单位化）；测试直接
+# 构造 dataclass，必须显式传入单位方向。
+_UNIT_DIAGONAL = math.sqrt(1.0 / 3.0)
+SKEW_AXIS = AxisSpec(origin_mm=(0.0, 0.0, 0.0),
+                     direction=(_UNIT_DIAGONAL, _UNIT_DIAGONAL, _UNIT_DIAGONAL))
+
+
+def _assert_vector_close(test: unittest.TestCase, actual, expected, *, places: int = 9) -> None:
+    for actual_component, expected_component in zip(actual, expected):
+        test.assertAlmostEqual(float(actual_component), float(expected_component), places=places)
+
+
+class CircularPatternGeometryTests(unittest.TestCase):
+    def test_rotated_point_around_z_axis_cardinal_angles(self) -> None:
+        # +Z 轴右手逆时针：90° 把 (10, 0, 0) 转到 (0, 10, 0)，180° 到 (-10, 0, 0)，
+        # 270° 到 (0, -10, 0)。z 坐标不变。
+        point = (10.0, 0.0, 4.0)
+        for angle_deg, expected in [
+            (90.0, (0.0, 10.0, 4.0)),
+            (180.0, (-10.0, 0.0, 4.0)),
+            (270.0, (0.0, -10.0, 4.0)),
+            (360.0, (10.0, 0.0, 4.0)),
+        ]:
+            with self.subTest(angle=angle_deg):
+                rotated = _rotated_point(point, Z_AXIS, math.radians(angle_deg))
+                _assert_vector_close(self, rotated, expected)
+
+    def test_rotated_point_negative_angle_rotates_clockwise(self) -> None:
+        # -90° 顺时针：+X 转到 -Y。
+        rotated = _rotated_point((10.0, 0.0, 0.0), Z_AXIS, math.radians(-90.0))
+        _assert_vector_close(self, rotated, (0.0, -10.0, 0.0))
+
+    def test_rotated_point_about_arbitrary_axis_keeps_axis_distance(self) -> None:
+        # 绕空间对角轴：轴向分量守恒、到轴距离不变（等距变换）。
+        point = (3.0, -2.0, 7.0)
+        rotated = _rotated_point(point, SKEW_AXIS, math.radians(40.0))
+        axial = sum(component * value for component, value in zip(point, SKEW_AXIS.direction))
+        rotated_axial = sum(component * value for component, value in zip(rotated, SKEW_AXIS.direction))
+        self.assertAlmostEqual(rotated_axial, axial, places=9)
+        distance_sq = sum(c * c for c in point) - axial * axial
+        rotated_distance_sq = sum(c * c for c in rotated) - rotated_axial * rotated_axial
+        self.assertAlmostEqual(rotated_distance_sq, distance_sq, places=9)
+
+    def test_rotated_point_around_offset_axis(self) -> None:
+        # 轴不过原点：先平移到轴、旋转、再平移回。绕 (10, 0, 0) 竖直轴转 90°，
+        # 点 (10, 5, 0) 的相对矢量 (0, 5, 0) 转到 (-5, 0, 0) → (5, 0, 0)。
+        offset_axis = AxisSpec(origin_mm=(10.0, 0.0, 0.0), direction=(0.0, 0.0, 1.0))
+        rotated = _rotated_point((10.0, 5.0, 0.0), offset_axis, math.radians(90.0))
+        _assert_vector_close(self, rotated, (5.0, 0.0, 0.0))
+
+    def test_rotated_vector_preserves_length_and_normalizes_axis(self) -> None:
+        # 向量旋转不含平移项（原点到向量尾所在轴上的投影分量守恒）。
+        value = (2.0, 0.0, 0.0)
+        rotated = _rotated_vector(value, Z_AXIS, math.radians(90.0))
+        _assert_vector_close(self, rotated, (0.0, 2.0, 0.0))
+        for axis, expected in [
+            (X_AXIS, (2.0, 0.0, 0.0)),  # 绕自身轴旋转不变
+            (Y_AXIS, (0.0, 0.0, -2.0)),  # 绕 +Y 转 90°（右手）把 +X 转到 -Z
+        ]:
+            with self.subTest(axis=axis.direction):
+                _assert_vector_close(self, _rotated_vector(value, axis, math.radians(90.0)), expected)
+
+    def test_rotated_vector_arbitrary_angle_is_length_preserving(self) -> None:
+        value = (1.0, 2.0, 3.0)
+        rotated = _rotated_vector(value, SKEW_AXIS, math.radians(71.0))
+        self.assertAlmostEqual(
+            sum(c * c for c in rotated), sum(c * c for c in value), places=9)
+
+    def test_rotated_sketch_rotates_workplane_and_world_contours_only(self) -> None:
+        # workplane frame（原点 + 三向量）与 contour 世界坐标点绕 +Z 转 90°；
+        # 2D 局部实体坐标保持原样（frame 旋转负责映射到新世界位置）。
+        sketch = {
+            "workplane": {"origin_mm": [0.0, 0.0, 0.0], "x_dir": [1.0, 0.0, 0.0],
+                          "y_dir": [0.0, 1.0, 0.0], "normal": [0.0, 0.0, 1.0]},
+            "entities": [{"type": "circle", "center": [0.0, 1.0], "radius_mm": 2.0}],
+            "contour_edges_mm": [{"start_mm": [1.0, 2.0, 0.0], "end_mm": [3.0, 4.0, 5.0],
+                                  "center_mm": [2.0, 3.0, 0.0]}],
+            "contour_regions_mm": [{"outer": [{"start_mm": [0.0, 1.0, 0.0],
+                                               "end_mm": [1.0, 0.0, 0.0]}]}],
+        }
+        rotated = _rotated_sketch(sketch, Z_AXIS, math.radians(90.0))
+        _assert_vector_close(self, rotated["workplane"]["origin_mm"], (0.0, 0.0, 0.0))
+        _assert_vector_close(self, rotated["workplane"]["x_dir"], (0.0, 1.0, 0.0))
+        _assert_vector_close(self, rotated["workplane"]["y_dir"], (-1.0, 0.0, 0.0))
+        _assert_vector_close(self, rotated["workplane"]["normal"], (0.0, 0.0, 1.0))
+        self.assertEqual(rotated["entities"], sketch["entities"])
+        edge = rotated["contour_edges_mm"][0]
+        _assert_vector_close(self, edge["start_mm"], (-2.0, 1.0, 0.0))
+        _assert_vector_close(self, edge["end_mm"], (-4.0, 3.0, 5.0))
+        _assert_vector_close(self, edge["center_mm"], (-3.0, 2.0, 0.0))
+        outer = rotated["contour_regions_mm"][0]["outer"][0]
+        _assert_vector_close(self, outer["start_mm"], (-1.0, 0.0, 0.0))
+        _assert_vector_close(self, outer["end_mm"], (0.0, 1.0, 0.0))
+
+    def test_box_circular_exactness_boundary(self) -> None:
+        # box_add 固定世界轴对齐：仅坐标轴旋转且每份转角为 180° 整数倍时精确。
+        self.assertTrue(_box_circular_is_exact(Z_AXIS, math.radians(180.0)))
+        self.assertTrue(_box_circular_is_exact(Z_AXIS, math.radians(360.0)))
+        self.assertFalse(_box_circular_is_exact(Z_AXIS, math.radians(90.0)))
+        self.assertFalse(_box_circular_is_exact(Z_AXIS, math.radians(45.0)))
+        # 绕 x/y 的非 180° 转角同样不可精确表达；空间对角轴任何转角都不行。
+        self.assertFalse(_box_circular_is_exact(X_AXIS, math.radians(90.0)))
+        self.assertFalse(_box_circular_is_exact(SKEW_AXIS, math.radians(180.0)))
+
+    def test_coordinate_axis_direction_detection(self) -> None:
+        self.assertTrue(_coordinate_axis_direction([0.0, 0.0, 1.0]))
+        self.assertTrue(_coordinate_axis_direction((0.0, -1.0, 0.0)))
+        self.assertFalse(_coordinate_axis_direction([1.0, 1.0, 1.0]))
+        self.assertFalse(_coordinate_axis_direction([1.0, 0.0, 0.5]))
+
+
+if __name__ == "__main__":
+    unittest.main()